diff --git a/doc/install_ontop.md b/doc/install_ontop.md
index e44633c..cbf9090 100644
--- a/doc/install_ontop.md
+++ b/doc/install_ontop.md
@@ -1,6 +1,12 @@
 # Installation on existing client
 
-An easy method to test the lmn-client is to run the playbook manual on a fresh installed client.
+A straightforward way to test the lmn-client is to manually run the playbook on a freshly installed client.
+
+This can be done in the following ways:
+
+    On the client using ansible-pull
+    On the client by checking out the lmn-client repository and running the playbook locally
+    On a target device by checking out the lmn-client repository locally and executing the playbook against the target device
 
 ## Direct call via ansible-pull
 
@@ -9,10 +15,10 @@ With two simple commands you can install the lmn-client with default configurati
 Steps:
 
 * Install debian on client (via USB or PXE)
-* Install additional packages: ansible
+* Install additional packages: ansible  
   `sudo apt install ansible`
-* Run Playbook
-  `ansible-pull -i inventory.yml -l localhost, --url=https://codeberg.org/DigitalSouveraeneSchule/lmn-client.git -C main lmn-client.yml`
+* Run Playbook  
+  `sudo ansible-pull --verbose -i inventory-sample.yml -l localhost --url=https://codeberg.org/DigitalSouveraeneSchule/lmn-client.git -C main lmn-client.yml`
 
 ## Checkout git and run ansible locally
 
@@ -24,10 +30,12 @@ Steps:
 * Install debian on client (via USB or PXE)
 * Install additional packages: ansible, git  
   `sudo apt install ansible git`
-* Checkout Repository
+* Checkout Repository  
   `git clone https://codeberg.org/DigitalSouveraeneSchule/lmn-client.git`
+* Change into repository directory  
+  `cd lmn-client`
 * Create inventory  
-  `cp inventory.yml inventory-myschool.yml`
+  `cp inventory-sample.yml inventory-myschool.yml`
 * Edit inventory-myschool.yml  
   e.g.: `nano inventory-myschool.yml`
 * Run Playbook  
diff --git a/doc/install_pxe.md b/doc/install_pxe.md
index bfe7a8d..de90ab6 100644
--- a/doc/install_pxe.md
+++ b/doc/install_pxe.md
@@ -2,15 +2,28 @@
 
 * **Using DigitalSouveraeneSchule repository and LinuxMuster.Net tftp**  
   Simplest solution. Playbook and default inventory from DigitalSouveraeneSchule codeberg repository.  
-  Linux kernel and initial Ramdisk from debian repository.
+  Linux kernel and initial Ramdisk from debian repository.  
+  Client must have access to the internet (noproxy group).
 * **Using your own repository and LinuxMuster.Net tftp**  
   Here you can use your own inventory and make many custom settings.  
-  Linux kernel and initial Ramdisk from debian repository.
+  Linux kernel and initial Ramdisk from debian repository.  
+  Client must have access to the internet (noproxy group).
 * **Using your own repository and livebox tftp**  
-  Additional kernel and Ramdisk from your own infrastrukture.
+  Additional kernel and Ramdisk from your own infrastrukture.  
+  Client does not need direct internet access.
 
 ## Using codeberg repository and LinuxMuster.Net tftp
 
+### Requirements / firewall settings
+
+The computer on which the linuxclient is to be installed must have access to the Internet (add host to noproxy group)
+
+The following resources are downloaded from the internet:
+
+* The repository is provided by codeberg.org
+* the Linux kernel, the initial ramdisk and the installation files are loaded from debian.org.
+* mscorefonts from Microsoft
+
 ### Modification LinuxMuster.Net server
 
 Create grub config for device group `lmnclient` on your schools server:
@@ -25,9 +38,12 @@ set default=1
 menuentry 'Installer Debian bookworm (amd64) + preseed + ansible inventory' {
    echo -n "Enter domain join password: "
    read adpw
+   set vaultpw="dummy"
+   # echo -n "Enter vault password"
+   # read vaultpw
    linux   (http,ftp.debian.org)/debian/dists/stable/main/installer-amd64/current/images/netboot/debian-installer/amd64/linux auto=true priority=high \
-           url=https://codeberg.org/DigitalSouveraeneSchule/lmn-client/raw/branch/fvs/misc/preseed.cfg interface=auto \
-           playbook=lmn-client.yml adpw="${adpw}" ---
+           url=https://codeberg.org/DigitalSouveraeneSchule/lmn-client/raw/branch/main/misc/preseed.cfg interface=auto \
+           playbook=lmn-client.yml adpw="${adpw}" vaultpw="${vaultpw}" ---
    initrd  (http,ftp.debian.org)/debian/dists/stable/main/installer-amd64/current/images/netboot/debian-installer/amd64/initrd.gz
 }
 ```
@@ -47,4 +63,52 @@ classroom;mypc01;lmnclient;F2:81:6B:C9:E3:EF;10.0.5.51;;;;classroom-studentcompu
 * confirm `hostname` and `domain` (you will be asked in network setup)
 * ... Get a cup of coffee ... wait until reboot ... login (Logging in may take a few minutes after installation)
 
-## Using your own livebox server
+
+## Using your own repository and LinuxMuster.Net tftp
+
+If you fork the lmn-client repository, you can customize the preseeding and inventory to your needs.
+Use the instructions in the previous section and customize the repository in `/srv/linbo/boot/grub/lmnclient.cfg`.
+
+It makes sense to encrypt your inventory via `ansible-vault`.
+When using encrypted inventories you have to provide the vault password by commenting in the two lines in the `/srv/linbo/boot/grub/lmnclient.cfg`.
+
+## Using your own repository and livebox tftp
+
+The next improvement will be to use your own livebox with following functionalities:
+
+* Providing linux kernel and initial ramdisk for installer
+* Can be used as cache for debian packages (aptcacher)
+* Can provide mscorefonts and libdvdcss (multimedia codecs)
+* Can be used to boot live systems (netboot) via pxe
+
+### Installing the livebox server
+
+* Install debian VM and configure network
+* Install additional packages: ansible  
+  `sudo apt install ansible`
+* Run livebox playbook  
+  `ansible-pull -i localhost, --url=https://salsa.debian.org/andi/debian-lan-ansible.git -C master livebox.yml`
+* Set DNS entry for your new livebox server
+
+### Modification LinuxMuster.Net server
+
+The file `/srv/linbo/boot/grub/lmnclient.cfg` might look like this:
+
+```
+# ### NOT managed by linuxmuster.net ###
+
+# edit to your needs
+set default=1
+
+menuentry 'Installer Debian bookworm (amd64) + preseed + ansible inventory' {
+   echo -n "Enter domain join password: "
+   read adpw
+   set vaultpw="dummy"
+   # echo -n "Enter vault password"
+   # read vaultpw
+   linux   (http,livebox.example.com)/d-i/n-pkg/images/12/amd64/text/debian-installer/amd64/linux auto=true priority=high \
+           url=https://codeberg.org/MySchool/lmn-client/raw/branch/main/misc/preseed-myschool.cfg interface=auto \
+           playbook=lmn-client.yml adpw="${adpw}" vaultpw="${vaultpw}" ---
+   initrd  (http,livebox.example.com)/d-i/n-pkg/images/12/amd64/text/debian-installer/amd64/initrd.gz
+}
+```
diff --git a/inventory-sample.yml b/inventory-sample.yml
index 5cca733..e12857e 100644
--- a/inventory-sample.yml
+++ b/inventory-sample.yml
@@ -2,10 +2,9 @@
 all:
   vars:
     domain: "{{ ansible_domain }}"
-    security_defaultuser_login_disable: false
-    kde_desktop_pkg:
-      - akonadi-backend-sqlite
 
+    # Comment out on productive systems when ssh key is provided
+    security_defaultuser_login_disable: false
 
     ## Proxy configuration (see: doc/localproxy.md)
     # localproxy: true
@@ -59,7 +58,6 @@ all:
     #   - vim
     #   - mc
     #   - tmux
-    #   - debconf-utils
 
     ## WLAN configuration (see: doc/vpn.md):
     ##
@@ -105,6 +103,7 @@ all:
 
   hosts:
     localhost:
+      ansible_connection: local
 
 laptops:
   children:
diff --git a/inventory.yml b/inventory.yml
index 81076e7..dd5bcb1 100644
--- a/inventory.yml
+++ b/inventory.yml
@@ -1,649 +1,705 @@
 $ANSIBLE_VAULT;1.1;AES256
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diff --git a/lmn-client.yml b/lmn-client.yml
index 5584d6e..4a2fab7 100644
--- a/lmn-client.yml
+++ b/lmn-client.yml
@@ -49,6 +49,7 @@
     - lmn_network
     - role: up2date_debian
       tags: upgrade
+    - lmn_encrypt
     - lmn_sssd
     - lmn_mount
     - lmn_kde
@@ -63,7 +64,7 @@
     - role: lmn_localhome
       when: localhome
     - role: lmn_localuser
-      when: localuser
+      when: localuser|bool
     - role: lmn_exam
       when: exam_mode
     - role: lmn_wlan
@@ -80,15 +81,17 @@
         loop_var: rolename
       when: custom_roles is defined
 
-    - name: Final tasks
-      ansible.builtin.include_role:
-        name: "{{ role }}"
-      loop_control:
-        loop_var: role
-      loop:
-        - lmn_security
-        - lmn_finish
-        - lmn_tmpfixes
+    - name: Import role security
+      ansible.builtin.import_role:
+        name: lmn_security
+
+    - name: Import role finish
+      ansible.builtin.import_role:
+        name: lmn_finish
+
+    - name: Import role tmpfixes
+      ansible.builtin.import_role:
+        name: lmn_tmpfixes
 
 
 - name: Apply roles that must run serial
diff --git a/lmn-vault b/lmn-vault
deleted file mode 100644
index 01cc8c1..0000000
--- a/lmn-vault
+++ /dev/null
@@ -1,107 +0,0 @@
-$ANSIBLE_VAULT;1.1;AES256
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diff --git a/misc/preseed.cfg b/misc/preseed.cfg
index 09c6cfe..2cbe370 100644
--- a/misc/preseed.cfg
+++ b/misc/preseed.cfg
@@ -50,13 +50,11 @@ d-i apt-setup/contrib boolean true
 d-i mirror/country string manual
 d-i mirror/http/hostname string deb.debian.org
 d-i mirror/http/directory string /debian
-#d-i mirror/http/proxy string http://10.167.0.253:3142/
-#d-i mirror/http/proxy string http://192.168.1.17:3142/
-#d-i mirror/http/proxy string http://aptcache.steinbeisschule-reutlingen.de:3142/
-d-i mirror/http/proxy string http://aptcache.pn.steinbeis.schule:3142/
+#d-i mirror/http/proxy string http://aptcache.pn.steinbeis.schule:3142/
+d-i mirror/http/proxy string
 
 # NTP server to use:
-d-i clock-setup/ntp-server string server.pn.steinbeis.schule
+#d-i clock-setup/ntp-server string server.pn.steinbeis.schule
 
 ### Backports:
 #apt-setup-udeb apt-setup/services-select multiselect security, updates, backports
@@ -129,10 +127,9 @@ d-i preseed/late_command string \
         in-target mount -v -t tmpfs tmpfs /dev/shm ; \
         echo "$vaultpw" > /target/dev/shm/vaultpw ; \
         in-target ansible-pull --verbose --purge --extra-vars="run_in_installer=true" \
-           -l localhost \
-           -i inventory-sample.yml --url=https://codeberg.org/DigitalSouveraeneSchule/lmn-client.git -C fvs $playbook ; \
+           --vault-password-file /dev/shm/vaultpw -l localhost \
+           -i inventory-sample.yml --url=https://codeberg.org/DigitalSouveraeneSchule/lmn-client.git -C main $playbook ; \
       fi
-##           --vault-password-file /dev/shm/vaultpw -l localhost \
 #
 ## When installing in combination with ansible-pull,
 ## export your ansible playbook like:
diff --git a/misc/vm/Netzlaufwerke neu verbinden.lnk b/misc/vm/Netzlaufwerke neu verbinden.lnk
new file mode 100755
index 0000000..e2fe26b
Binary files /dev/null and b/misc/vm/Netzlaufwerke neu verbinden.lnk differ
diff --git a/misc/vm/injector.ps1 b/misc/vm/injector.ps1
new file mode 100644
index 0000000..4c785cf
--- /dev/null
+++ b/misc/vm/injector.ps1
@@ -0,0 +1,155 @@
+param(
+    [string]$ticketb64
+)
+# BASE64
+$ticket = New-Object System.Byte
+#reading from b64
+$ticket = [System.Convert]::FromBase64String($ticketb64)
+if ($ticket -eq $null){
+    write-host "[-] Be Sure entering the correct mode"
+    write-host "[-] Cannot receive ticket from file or b64"
+    exit;
+}
+
+
+# ------------------- FUNCTIONS -----------------------#
+$ptt = @"
+[StructLayout(LayoutKind.Sequential)]
+public struct LUID
+{
+    public UInt32 LowPart;
+    public Int32 HighPart;
+}
+public enum KERB_PROTOCOL_MESSAGE_TYPE 
+{
+  KerbDebugRequestMessage,
+  KerbQueryTicketCacheMessage,
+  KerbChangeMachinePasswordMessage,
+  KerbVerifyPacMessage,
+  KerbRetrieveTicketMessage,
+  KerbUpdateAddressesMessage,
+  KerbPurgeTicketCacheMessage,
+  KerbChangePasswordMessage,
+  KerbRetrieveEncodedTicketMessage,
+  KerbDecryptDataMessage,
+  KerbAddBindingCacheEntryMessage,
+  KerbSetPasswordMessage,
+  KerbSetPasswordExMessage,
+  KerbVerifyCredentialMessage,
+  KerbQueryTicketCacheExMessage,
+  KerbPurgeTicketCacheExMessage,
+  KerbRefreshSmartcardCredentialsMessage,
+  KerbAddExtraCredentialsMessage,
+  KerbQuerySupplementalCredentialsMessage,
+  KerbTransferCredentialsMessage,
+  KerbQueryTicketCacheEx2Message,
+  KerbSubmitTicketMessage,
+  KerbAddExtraCredentialsExMessage
+}
+[StructLayout(LayoutKind.Sequential)]
+public struct KERB_CRYPTO_KEY32
+{
+    public int KeyType;
+    public int Length;
+    public int Offset;
+}
+[StructLayout(LayoutKind.Sequential)]
+public struct KERB_SUBMIT_TKT_REQUEST
+{
+    public KERB_PROTOCOL_MESSAGE_TYPE MessageType;
+    public LUID                       LogonId;
+    public int                        Flags;
+    public KERB_CRYPTO_KEY32          Key;
+    public int                        KerbCredSize;
+    public int                        KerbCredOffset;
+}
+[StructLayout(LayoutKind.Sequential)]
+public struct LSA_STRING_IN
+{
+    public ushort Length;
+    public ushort MaximumLength;
+    public IntPtr buffer;
+}
+[DllImport("secur32.dll", SetLastError=false)]
+public static extern int LsaLookupAuthenticationPackage([In] IntPtr LsaHandle,[In] ref LSA_STRING_IN PackageName,[Out] out UInt32 AuthenticationPackage);
+[DllImport("Secur32.dll", SetLastError = true)]
+public static extern int LsaCallAuthenticationPackage(IntPtr LsaHandle,uint AuthenticationPackage,IntPtr ProtocolSubmitBuffer,int SubmitBufferLength,out IntPtr ProtocolReturnBuffer,out ulong ReturnBufferLength,out int ProtocolStatus);
+[DllImport("secur32.dll", SetLastError=false)]
+public static extern int LsaConnectUntrusted([Out] out IntPtr LsaHandle);
+[DllImport("secur32.dll", SetLastError=false)]
+public static extern int LsaDeregisterLogonProcess([In] IntPtr LsaHandle);
+[DllImport("advapi32.dll", SetLastError=true)]
+public static extern uint LsaNtStatusToWinError(uint status);
+"@
+
+
+Function ConnectToLsa()
+{
+$lsahandle = New-Object System.IntPtr
+[int]$retcode = [KRB.PTT]::LsaConnectUntrusted([ref]$lsahandle)
+if ($retcode -ne 0){
+    write-host "[-] LsaConnectUntrusted Error (NTSTATUS): ", $retcode -ForegroundColor Red
+    exit;
+}
+return $lsahandle
+}
+
+#-------------------------------- ENTRY POINT ----------------------------#
+
+$assemblies = [System.Reflection.Assembly]::LoadWithPartialName("System.Security.Principal")
+Add-Type -MemberDefinition $ptt -Namespace "KRB" -Name "PTT" -ReferencedAssemblies $assemblies.location -UsingNamespace System.Security.Principal
+# CONNECTING TO LSA
+$LsaHandle = ConnectToLsa
+write-host "[?] LSA HANDLE: ", $LsaHandle
+# EXTRACTING KERBEROS AP
+$retcode = New-Object System.Int32
+$authPackage = New-Object System.Int32
+$name = "kerberos"
+$importnantlsastring = New-Object KRB.PTT+LSA_STRING_IN
+$importnantlsastring.Length = [uint16]$name.Length
+$importnantlsastring.MaximumLength = [uint16]($name.Length + 1)
+$importnantlsastring.buffer = [System.Runtime.InteropServices.Marshal]::StringToHGlobalAnsi($name)
+$retcode = [KRB.PTT]::LsaLookupAuthenticationPackage($lsaHandle,[ref]$importnantlsastring,[ref]$authPackage)
+if ($retcode -ne 0){
+write-host "[-] Error LsaLookupAuthPckg (NTSTATUS): ", $retcode -ForegroundColor Red
+exit;
+}
+write-host "[?] Kerberos Package: ", $authPackage
+# GETTING CURRENT LUID (INJECT PURPOSES)
+$output = klist
+$CurrLuid = $output.split("`n")[1].split(":")[1]
+$sysIntCurrLuid = [convert]::ToInt32($CurrLuid,16)
+$luidFinally = New-Object KRB.PTT+LUID
+$luidFinally.LowPart = $sysIntCurrLuid
+
+# TICKET INJECTING
+$protocolReturnBuffer = New-Object System.IntPtr
+$ReturnBufferLength = New-Object System.Int32
+$ProtocolStatus = New-Object System.Int32
+$KrbRequestInfo = New-Object KRB.PTT+KERB_SUBMIT_TKT_REQUEST
+$KrbRequestInfoType = $KrbRequestInfo.getType()
+$KrbRequestInfo.MessageType = [KRB.PTT+KERB_PROTOCOL_MESSAGE_TYPE]::KerbSubmitTicketMessage
+$KrbRequestInfo.KerbCredSize = $ticket.Length
+$KrbRequestInfo.KerbCredOffset = [System.Runtime.InteropServices.Marshal]::SizeOf([type]$KrbRequestInfoType)
+$KrbRequestInfo.LogonId = $luidFinally
+$inputBufferSize = [System.Runtime.InteropServices.Marshal]::SizeOf([type]$KrbRequestInfoType) + $ticket.Length
+$inputBuffer = [System.Runtime.InteropServices.Marshal]::AllocHGlobal($inputBufferSize)
+[System.Runtime.InteropServices.Marshal]::StructureToPtr($KrbRequestInfo,$inputBuffer,$false)
+[System.IntPtr]$PtrToCred = $inputBuffer.ToInt64() + $KrbRequestInfo.KerbCredOffset
+[System.Runtime.InteropServices.Marshal]::Copy($ticket,0,$PtrToCred,$ticket.Length)
+$ntstatus = [KRB.PTT]::LsaCallAuthenticationPackage($lsaHandle,$authPackage,$inputBuffer,$inputBufferSize,[ref]$protocolReturnBuffer,[ref]$ReturnBufferLength,[ref]$ProtocolStatus)
+if(($ProtocolStatus -ne 0) -or ($ntstatus -ne 0))
+{
+    Write-Host "[!] Error in LsaCallAuthenticationPackage" -ForegroundColor Red
+    write-host " NTSTATUS: ", $ntstatus, " Protocol Status: ", $ProtocolStatus
+    if ($ProtocolStatus -eq -1073741517){
+        " Ticket may be out of date"
+    }
+    exit;
+}
+if($inputBuffer -ne [System.IntPtr]::Zero)
+{
+    [System.Runtime.InteropServices.Marshal]::FreeHGlobal($inputBuffer)
+    [System.Object]$ticket = $null
+}
+klist
diff --git a/misc/vm/vm-prepare-sys.ps1 b/misc/vm/vm-prepare-sys.ps1
new file mode 100644
index 0000000..ad8f16f
--- /dev/null
+++ b/misc/vm/vm-prepare-sys.ps1
@@ -0,0 +1,73 @@
+# Installiere alle Mounts aus target.csv
+# Geprüft wird, ob das Laufwerk bereits vorhanden
+# 11.05.2025 da
+
+function Mount-Drive {
+    param (
+        [string]$DriveLetter,
+        [string]$TargetPath
+    )
+
+    try {
+        & "C:\Program Files (x86)\WinFsp\bin\launchctl-x64.exe" start virtiofs viofs$DriveLetter $TargetPath \\.\${DriveLetter}:
+        Write-Verbose "Laufwerk hinzugefügt: $DriveLetter"
+    } catch {
+        Write-Error "Fehler beim Hinzufügen des Laufwerks ${DriveLetter}: $_"
+    }
+}
+
+function Import-VMInfo {
+    param (
+        [string]$Path
+    )
+
+    if (Test-Path $Path) {
+        return Get-Content -Path $Path -Raw | ConvertFrom-Json
+    } else {
+        Write-Error "Fehler beim Einlesen der VMInfo Datei ($Path nicht gefunden)."
+        Write-Error "Tipp: Beim Neustart der VM wird diese Datei neu angelegt."
+        Pause
+        exit
+    }
+}
+
+# Laufwerk Y: mit weiteren Mountpoint-Infos mounten
+& "C:\Program Files\Virtio-Win\VioFS\virtiofs.exe" -m Y:
+#Mount-Drive -DriveLetter "Y" -TargetPath "VM-Data"
+
+# VMInfo aus JSON File einlesen
+$VMInfoPath = "Y:\.vminfo.json"
+# Schleife, die auf das Laufwerk wartet
+while (-not (Test-Path $VMInfoPath)) {
+    Write-Host "Warte auf $VMInfoPath..."
+    Start-Sleep -Seconds 1
+}
+$VMInfo = Import-VMInfo -Path $VMInfoPath
+
+# Weitere Laufwerke einbinden
+#foreach ($virtiofs in $VMInfo.VirtioFS) {
+#    $targetDrive = $virtiofs.Drive
+#    if (-not (Get-PSDrive -Name $targetDrive -ErrorAction SilentlyContinue)) {
+#        Mount-Drive -DriveLetter $targetDrive -TargetPath $virtiofs.Target
+#    } else {
+#        Write-Error "Laufwerk bereits vorhanden: $targetDrive"
+#    }
+#}
+
+# Drucker installieren
+foreach ($drucker in $VMInfo.Printers) {
+    # Überprüfen, ob der Drucker bereits vorhanden ist
+    $druckerName = $drucker.Name
+    $druckerVorhanden = Get-Printer | Where-Object { $_.Name -eq $druckerName }
+
+	# Umwandlung in HTTP-URL
+	$httpUrl = $drucker.IppURL -replace "ipp://", "http://" -replace "122.1", "122.1:631"
+
+    if (-not $druckerVorhanden) {
+        # Drucker hinzufügen, wenn er nicht vorhanden ist
+        Add-Printer -PortName $httpUrl -Name $druckerName -DriverName "Microsoft IPP Class Driver"
+        Write-Host "Drucker hinzugefuegt: $druckerName"
+    } else {
+        Write-Host "Drucker bereits vorhanden: $druckerName"
+    }
+}
diff --git a/misc/vm/vm-prepare-sys.xml b/misc/vm/vm-prepare-sys.xml
new file mode 100755
index 0000000..b00a30e
Binary files /dev/null and b/misc/vm/vm-prepare-sys.xml differ
diff --git a/misc/vm/vm-prepare-user.ps1 b/misc/vm/vm-prepare-user.ps1
new file mode 100644
index 0000000..15b540a
--- /dev/null
+++ b/misc/vm/vm-prepare-user.ps1
@@ -0,0 +1,102 @@
+# Installiere alle Mounts aus target.csv
+# Geprüft wird, ob das Laufwerk bereits vorhanden
+# 11.05.2025 da
+
+function Import-VMInfo {
+    param (
+        [string]$Path
+    )
+
+    if (Test-Path $Path) {
+        return Get-Content -Path $Path -Raw | ConvertFrom-Json
+    } else {
+        Write-Error "Fehler beim Einlesen der VMInfo Datei ($Path nicht gefunden)."
+        Write-Error "Tipp: Beim Neustart der VM wird diese Datei neu angelegt."
+        Pause
+        exit
+    }
+}
+
+function Add-PathToQuickAccess([string[]]$path){
+    $path | %{
+        write-host "Adding path '$($_)' to Quick acccess list." -F Green
+        try{
+            $link = (New-Object -Com Shell.Application).NameSpace($_).Self
+            if(!$link){throw "Item path not valid to be pinned."}
+            $link.Verbs()| ?{$_.Name.replace('&','') -match 'An Schnellzugriff anheften|Pin to Quick access'} | %{$_.DoIt()}
+        }catch{
+            write-error "Error adding path. $($_.Exception.Message)"
+        }
+    }
+}
+
+$VMInfoPath = "Y:\.vminfo.json"
+
+# Schleife, die auf das Laufwerk wartet
+while (-not (Test-Path $VMInfoPath)) {
+    Write-Host "Warte auf $VMInfoPath..."
+    Start-Sleep -Seconds 1
+}
+
+# VMInfo aus JSON File einlesen
+$VMInfo = Import-VMInfo -Path $VMInfoPath
+
+& $PSScriptRoot\injector.ps1 $VMInfo.krb5.cred
+$klistOutput = klist
+
+$serverping = Test-Connection -ComputerName "server.pn.steinbeis.schule" -Count 2 -Quiet
+if ($serverping) {
+	if ($klistOutput -like "*Client*") {
+		foreach ($Mount in $VMInfo.Mounts) {
+			net use /persistent:no "$($Mount.Drive):" "$($Mount.RemotePath)"
+			#New-SMBMapping -Localpath "$($Mount.Drive):" -Remotepath $Mount.RemotePath
+			Write-Host("net use $($Mount.Drive): $($Mount.RemotePath)")
+		}
+	} else {
+	#if (-not ($klistOutput -like "*Client*") -or (-not (Test-Path "H:"))) {
+		$Credential = Get-Credential -Message "Die automatische Einbindung der Netzlaufwerke ist fehlgeschlagen.`nBitte geben Sie Ihre Anmeldeinformationen für das Netzlaufwerk ein" $VMInfo.User
+		# Laufwerke einbinden
+		foreach ($Mount in $VMInfo.Mounts) {
+			net use /persistent:no "$($Mount.Drive):" "$($Mount.RemotePath)" /user:"$($Credential.UserName)" "$($Credential.GetNetworkCredential().Password)"
+			Write-Host("net use /persistent:no `"$($Mount.Drive):`" `"$($Mount.RemotePath)`"")
+			#New-SMBMapping -Localpath "$($Mount.Drive):" -Remotepath "$($Mount.RemotePath)" -UserName "$($Credential.UserName)" -Password "$($Credential.GetNetworkCredential().Password)"
+			#Write-Host("New-SMBMapping -Localpath $($Mount.Drive): -Remotepath $Mount.RemotePath")
+		}
+	}
+} else {
+	Add-Type -AssemblyName System.Windows.Forms
+	$message = "Der Server kann derzeit nicht erreicht werden.`nDaher können die Netzlaufwerke derzeit nicht verbunden werden.`nVersuchen Sie es zu einem späteren Zeitpunkt erneut mit dem Skript: Netzlaufwerke-verbinden"
+	$title = "Server nicht erreichbar"
+	[System.Windows.Forms.MessageBox]::Show($message, $title, [System.Windows.Forms.MessageBoxButtons]::OK,	[System.Windows.Forms.MessageBoxIcon]::Warning)
+}
+
+# Ändere den Namen der Netzlaufwerke
+$shell = New-Object -ComObject Shell.Application
+foreach ($Mount in $VMInfo.Mounts) {
+	$folder = $shell.Namespace("$($Mount.Drive):")
+    if ($folder) {
+        $folder.Self.Name = $Mount.Name
+        Write-Host "Das Netzlaufwerk $($Mount.Drive): wurde in '$($Mount.Name)' umbenannt."
+    } else {
+        Write-Host "Fehler beim Zugriff auf das Netzlaufwerk."
+    }
+}
+
+# Pfade zur Schnellzugriff hinzufügen
+Add-PathToQuickAccess $VMInfo.QuickAccess
+
+# Pfade für Standardorte ändern
+$regPath = "HKCU:\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders"
+foreach ($USF in $VMInfo.UserShellFolders) {
+    Write-Host "Set-ItemProperty -Path $regPath -Name $($USF.Name) -Value $($USF.Path)"
+    Set-ItemProperty -Path $regPath -Name "$($USF.Name)" -Value "$($USF.Path)"
+}
+
+# Explorer Neustart erzwingen (evtl. nicht notwendig)
+Stop-Process -Name explorer -Force
+# Start-Process explorer
+
+# Bei Lehrern Papercut-Client starten
+if (($VMInfo.Groups -contains "teachers") -and -not (Get-Process -Name pc-client -ErrorAction SilentlyContinue)) {
+    & "C:\custom\papercut\pc-client.exe" -m --user $VMInfo.User
+}
diff --git a/misc/vm/vm-prepare-user.xml b/misc/vm/vm-prepare-user.xml
new file mode 100755
index 0000000..f3f8854
Binary files /dev/null and b/misc/vm/vm-prepare-user.xml differ
diff --git a/misc/vm/vm-update-user.ps1 b/misc/vm/vm-update-user.ps1
new file mode 100644
index 0000000..c3036d5
--- /dev/null
+++ b/misc/vm/vm-update-user.ps1
@@ -0,0 +1,30 @@
+# Injects krb5-credential from .vminfo.json if available
+# 02.07.2025 da
+
+function Import-VMInfo {
+    param (
+        [string]$Path
+    )
+
+    if (Test-Path $Path) {
+        return Get-Content -Path $Path -Raw | ConvertFrom-Json
+    } else {
+        Write-Error "Fehler beim Einlesen der VMInfo Datei ($Path nicht gefunden)."
+        Write-Error "Tipp: Beim Neustart der VM wird diese Datei neu angelegt."
+        Pause
+        exit
+    }
+}
+
+$VMInfoPath = "Y:\.vminfo.json"
+
+# Schleife, die auf das Laufwerk wartet
+if (-not (Test-Path $VMInfoPath)) {
+    Write-Host "$VMInfoPath nicht gefunden. Skript beenden."
+    exit
+}
+
+# VMInfo aus JSON File einlesen
+$VMInfo = Import-VMInfo -Path $VMInfoPath
+
+& $PSScriptRoot\injector.ps1 $VMInfo.krb5.cred
diff --git a/misc/vm/vm-update-user.xml b/misc/vm/vm-update-user.xml
new file mode 100755
index 0000000..b6500e8
Binary files /dev/null and b/misc/vm/vm-update-user.xml differ
diff --git a/roles/custom/fvs/files/lmn-codeblocks.sh b/roles/custom/fvs/files/lmn-codeblocks.sh
new file mode 100644
index 0000000..27f24b3
--- /dev/null
+++ b/roles/custom/fvs/files/lmn-codeblocks.sh
@@ -0,0 +1,15 @@
+if [[ "$UID" -gt 10000 ]] && [[ ! -f ~/.config/codeblocks/default.conf ]] ; then
+  mkdir -p ~/.config/codeblocks
+  cat <<EOF > ~/.config/codeblocks/default.conf
+<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
+<CodeBlocksConfig version="1">
+        <editor>
+                <FONT>
+                        <str>
+                                <![CDATA[Monospace 18]]>
+                        </str>
+                </FONT>
+        </editor>
+</CodeBlocksConfig>
+EOF
+fi
diff --git a/roles/custom/fvs/files/lmn-patch-dolphin.sh b/roles/custom/fvs/files/lmn-patch-dolphin.sh
index 60707c8..ca7efc6 100755
--- a/roles/custom/fvs/files/lmn-patch-dolphin.sh
+++ b/roles/custom/fvs/files/lmn-patch-dolphin.sh
@@ -16,11 +16,16 @@ fi
 id="$(grep ID "$file" | sed -E "s|^.+ID>([[:digit:]]+)/([[:digit:]]+)</ID.+$|\1:\2|" \
 	    | sort -n -t: -k2 | tail -1 )"
 
-if id | grep -q teachers; then
-  NETHOME=/srv/samba/schools/default-school/teachers/$USER
-else
+for dir in teachers examusers staff parents; do
+  if [[ -d "/srv/samba/schools/default-school/${dir}/${USER}" ]]; then
+    NETHOME="/srv/samba/schools/default-school/${dir}/${USER}"
+    break
+  fi
+done
+if [[ -z "${NETHOME+x}" ]]; then
   NETHOME=(/srv/samba/schools/default-school/students/*/"$USER")
 fi
+
 [[ -d $NETHOME ]] || exit 0
 
 IDENTITY="${id%%:*}"
@@ -49,7 +54,7 @@ fi
 patch="
 --- a/$file
 +++ b/$file
-@@ -98,9 +98,45 @@
+@@ -98,9 +98,33 @@
      <isSystemItem>true</isSystemItem>
     </metadata>
    </info>
@@ -66,18 +71,6 @@ $HOMEONSERVER
 +    <isSystemItem>true</isSystemItem>
 +   </metadata>
 +  </info>
-+ </bookmark>
-+ <bookmark href=\"file:///lmn/media/$USER/nextcloud\">
-+  <title>Nextcloud</title>
-+  <info>
-+   <metadata owner=\"http://freedesktop.org\">
-+    <bookmark:icon name=\"folder-cloud\"/>
-+   </metadata>
-+   <metadata owner=\"http://www.kde.org\">
-+    <ID>$IDENTITY/${NUM3}</ID>
-+    <isSystemItem>true</isSystemItem>
-+   </metadata>
-+  </info>
 + </bookmark>
   <bookmark href=\"remote:/\">
    <title>Network</title>
diff --git a/roles/custom/fvs/files/lmn-sync b/roles/custom/fvs/files/lmn-sync
index 16668f8..6ae5e17 100644
--- a/roles/custom/fvs/files/lmn-sync
+++ b/roles/custom/fvs/files/lmn-sync
@@ -12,7 +12,7 @@ fi
 #rsync -rlptD --chown=pgmadmin:root --chmod=F755,D755 rsync://server:/local-program/ /usr/local/lmn
 
 RSYNC_COMMAND=$(rsync -ai --delete --exclude=mimeinfo.cache \
-	           --chown=root:root --chmod=F644,D755 "rsync://server:/desktopstarter" \
+	           --chown=root:root --chmod=F644,D755 "rsync://fileserver:/desktopstarter" \
 		   /usr/local/share/applications/ | sed '/ \.\//d')
 if [[ $? -eq 0 ]] && [[ -n "${RSYNC_COMMAND}" ]]; then
     echo "${RSYNC_COMMAND}"
diff --git a/roles/custom/fvs/files/policies.json b/roles/custom/fvs/files/policies.json
index 1fd5fb0..b1c20cc 100644
--- a/roles/custom/fvs/files/policies.json
+++ b/roles/custom/fvs/files/policies.json
@@ -3,9 +3,9 @@
         "Proxy": {
             "Mode": "autoDetect"
         },
-        "OverrideFirstRunPage": "https://www.steinbeisschule-reutlingen.de",
+        "OverrideFirstRunPage": "https://www.steinbeis.schule",
         "Homepage": {
-            "URL": "https://www.steinbeisschule-reutlingen.de",
+            "URL": "https://www.steinbeis.schule",
             "Locked": false,
             "StartPage": "previous-session"
         },
@@ -15,7 +15,7 @@
                 "toplevel_name": "FvS-Reutlingen"
             },
             {
-                "url": "https://www.steinbeisschule-reutlingen.de",
+                "url": "https://www.steinbeis.schule",
                 "name": "FvS-Homepage"
             },
             {
@@ -27,7 +27,7 @@
                 "name": "FvS-eMail"
             },
             {
-                "url": "https://dw.steinbeis.schule",
+                "url": "https://info.steinbeis.schule",
                 "name": "FvS-Hilfesystem"
             },
             {
@@ -35,15 +35,23 @@
                 "name": "FvS-Moodle"
             },
             {
-                "url": "https://nc.steinbeis.schule",
-                "name": "FvS-Nextcloud"
+                "url": "https://cloud.steinbeis.schule",
+                "name": "FvS-Schulcloud"
+            },
+            {
+                "url": "https://nct.steinbeis.schule",
+                "name": "FvS-Nextcloud-Teacher (Nur für Lehrer)"
+            },
+            {
+                "url": "https://git.steinbeis.schule",
+                "name": "FvS-Git Versionsverwaltung"
             },
             {
                 "url": "https://server.pn.steinbeis.schule",
                 "name": "Schulkonsole"
             },
             {
-                "url": "https://peleus.webuntis.com/WebUntis/?school=Ferd.von+Steinbeis#/basic/login",
+                "url": "https://steinbeis.webuntis.com/WebUntis/?school=steinbeis#/basic/login",
                 "name": "FvS-Stundenplan"
             },
             {
diff --git a/roles/custom/fvs/tasks/main.yml b/roles/custom/fvs/tasks/main.yml
index 738b4fe..2248651 100644
--- a/roles/custom/fvs/tasks/main.yml
+++ b/roles/custom/fvs/tasks/main.yml
@@ -29,7 +29,6 @@
       - elpa-magit
       - emacs
       - filezilla
-      - freeplane
       - git
       - git-cola
       - gitg
@@ -46,6 +45,7 @@
       - libasound2-dev
       - libdbus-glib-1-2 ## needed for zotero
       - libnotify-bin ## needed for pwroff script
+      - libsqlite3-dev
       - libwayland-dev
       - libxcursor-dev
       - libxi-dev
@@ -62,10 +62,13 @@
       - okular-extra-backends ## needed for CHM files
       - pdf-presenter-console
       - php-cli
+      - php-sqlite3
       - pipx
       - planner
       - pulseview
+      - python3-legacy-cgi
       - python3-paho-mqtt
+      - python3-pgzero
       - python3-websockets
       - qpdfview
       - shellcheck
@@ -82,7 +85,7 @@
       - unison-gtk
       - w3m
       - wireshark
-      - zulucrypt-gui
+      # - zulucrypt-gui ## no longer in trixie
     autoremove: true
     state: latest
   environment:
@@ -155,6 +158,11 @@
     dest: /etc/profile.d/
     mode: '0644'
 
+- name: Copy codeblocks config scripts
+  ansible.builtin.copy:
+    src: lmn-codeblocks.sh
+    dest: /etc/profile.d/
+    mode: '0644'
 
 - name: Copy fvs-config.js to configure plasma
   ansible.builtin.copy:
@@ -162,6 +170,16 @@
     dest: /usr/share/plasma/shells/org.kde.plasma.desktop/contents/updates/fvs-config.js
     mode: '0644'
 
+- name: Configure default KDE applications
+  ansible.builtin.blockinfile:
+    path: /etc/xdg/mimeapps.list
+    create: true
+    mode: '0644'
+    block: |
+      [Default Applications]
+      x-scheme-handler/http=firefox-esr.desktop;
+      x-scheme-handler/https=firefox-esr.desktop;
+      x-scheme-handler/mailto=thunderbird.desktop;
 
 - name: Configure some KDE aspects
   ansible.builtin.blockinfile:
@@ -170,13 +188,22 @@
     mode: '0644'
     block: |
       [KDE]
-      SingleClick=false
+      #SingleClick=false
 
       [KDE Action Restrictions][$i]
       action/start_new_session=false
-      #action/switch_user=false
+      action/switch_user=false
       #action/lock_screen=false
 
+- name: Configure NumLock ON
+  ansible.builtin.blockinfile:
+    path: /etc/xdg/kcminputrc
+    create: true
+    mode: '0644'
+    block: |
+      [Keyboard]
+      NumLock=0
+
 - name: Start with empty session by default
   ansible.builtin.copy:
     dest: /etc/xdg/ksmserverrc
@@ -220,7 +247,7 @@
   ansible.builtin.blockinfile:
     path: /usr/share/sddm/themes/debian-breeze/Main.qml
     marker: // {mark} ANSIBLE MANAGED BLOCK
-    insertbefore: '\s+//Footer'
+    insertbefore: '^}$'
     block: |
       Text {
          id: hostname
@@ -249,5 +276,12 @@
       KERNEL=="mmcblk[0-9]", ENV{ID_NAME}=="?*", ENV{ID_SERIAL}=="?*", GROUP="domain users"
       KERNEL=="mmcblk[0-9]p[0-9]*", ENV{ID_NAME}=="?*", ENV{ID_SERIAL}=="?*", GROUP="domain users"
 
+- name: Set KiCad 3Dmodel path
+  ansible.builtin.lineinfile:
+    path: /etc/environment.d/90lmn-kicad.conf
+    create: true
+    mode: '0644'
+    line: KICAD9_3DMODEL_DIR=/lmn/tools/KiCad/kicad-packages3D
+
 - name: Include sync
   ansible.builtin.include_tasks: sync.yml
diff --git a/roles/lmn_encrypt/defaults/main.yml b/roles/lmn_encrypt/defaults/main.yml
new file mode 100644
index 0000000..b9b7837
--- /dev/null
+++ b/roles/lmn_encrypt/defaults/main.yml
@@ -0,0 +1,3 @@
+---
+encrypt_passphrase_initial: Muster!
+encrypt_tpm2: false
diff --git a/roles/lmn_encrypt/handlers/main.yml b/roles/lmn_encrypt/handlers/main.yml
new file mode 100644
index 0000000..0ef929f
--- /dev/null
+++ b/roles/lmn_encrypt/handlers/main.yml
@@ -0,0 +1,5 @@
+- name: Run update-grub
+  ansible.builtin.command: update-grub
+
+- name: Run update-dracut
+  ansible.builtin.command: dracut -f
diff --git a/roles/lmn_encrypt/tasks/main.yml b/roles/lmn_encrypt/tasks/main.yml
new file mode 100644
index 0000000..6c81e7b
--- /dev/null
+++ b/roles/lmn_encrypt/tasks/main.yml
@@ -0,0 +1,46 @@
+---
+- name: Find device with LUKS holder
+  vars:
+    partitions: "{{ item.value.partitions | dict2items | selectattr('value.holders', 'search', 'luks|crypt') }}"
+  ansible.builtin.set_fact:
+    encrypt_device: "/dev/disk/by-id/{{ partitions[0].value.links.ids[0] }}"
+  when:
+    - item.value.partitions is defined
+    - item.value.partitions | dict2items | length > 0
+    - item.value.partitions | dict2items | selectattr('value.holders', 'search', 'luks|crypt') | length > 0
+  loop: "{{ ansible_devices | dict2items }}"
+
+- name: Get luks slots
+  ansible.builtin.command:
+    cmd: "systemd-cryptenroll {{ encrypt_device }}"
+  register: encrypt_slots_result
+  changed_when: false
+  when: encrypt_device is defined
+
+- name: Change Password of Luks password slot
+  ansible.builtin.command:
+    cmd: >
+      systemd-run -P --wait
+      -p SetCredential=cryptenroll.passphrase:{{ encrypt_passphrase_initial }}
+      -p SetCredential=cryptenroll.new-passphrase:{{ encrypt_passphrase }}
+      systemd-cryptenroll --password {{ encrypt_device }} --wipe-slot=password
+  no_log: true
+  when:
+    - encrypt_device is defined
+    - encrypt_passphrase is defined
+    - encrypt_slots_result.stdout_lines | length == 2
+    - encrypt_slots_result.stdout_lines[1].startswith('   0')
+
+- name: TPM Device Check
+  ansible.builtin.stat:
+    path: /dev/tpm0
+  register: tpm_device
+  when: encrypt_device is defined
+
+- name: Include TPM2 role
+  ansible.builtin.include_tasks:
+    file: tpm2.yml
+  when:
+    - encrypt_device is defined
+    - encrypt_tpm2
+    - tpm_device.stat.exists
diff --git a/roles/lmn_encrypt/tasks/tpm2.yml b/roles/lmn_encrypt/tasks/tpm2.yml
new file mode 100644
index 0000000..432ce2f
--- /dev/null
+++ b/roles/lmn_encrypt/tasks/tpm2.yml
@@ -0,0 +1,42 @@
+---
+- name: Install tpm2-tools and dracut
+  ansible.builtin.apt:
+    name:
+      - tpm2-tools
+      - dracut
+
+- name: Enable tpm2-tss crypt module on dracut
+  ansible.builtin.copy:
+    dest: /etc/dracut.conf.d/crypt.conf
+    content: add_dracutmodules+=" tpm2-tss crypt "
+    mode: '0644'
+  notify: Run update-dracut
+
+- name: Comment out root device in crypttab
+  ansible.builtin.lineinfile:
+    dest: /etc/crypttab
+    regexp: '^([^#].*)'
+    line: '#\1'
+    backrefs: true
+
+- name: Insert luks support to GRUB_CMDLINE_LINUX
+  ansible.builtin.lineinfile:
+    dest: /etc/default/grub
+    regexp: '^(GRUB_CMDLINE_LINUX=).*'
+    line: '\1"rd.auto rd.luks=1"'
+    backrefs: true
+  notify: Run update-grub
+
+- name: Insert TPM2 to Luks slot
+  ansible.builtin.command:
+    cmd: >
+      systemd-run -P --wait
+      -p SetCredential=cryptenroll.passphrase:{{ encrypt_passphrase | default(encrypt_passphrase_initial) }}
+      systemd-cryptenroll --tpm2-device=auto --tpm2-pcrs="" {{ encrypt_device }} --wipe-slot=tpm2
+  no_log: true
+  when: "'tpm2' not in encrypt_slots_result.stdout"
+
+# - name: Update TPM2 Luks slot
+#   ansible.builtin.command:
+#     cmd: systemd-cryptenroll --tpm2-device=auto --tpm2-pcrs=7+8 --unlock-tpm2-device=auto {{ encrypt_device }} --wipe-slot=tpm2
+#   when: not grub_config.changed
diff --git a/roles/lmn_exam/defaults/main.yml b/roles/lmn_exam/defaults/main.yml
index da8c198..fc97945 100644
--- a/roles/lmn_exam/defaults/main.yml
+++ b/roles/lmn_exam/defaults/main.yml
@@ -1,2 +1,3 @@
 ---
 exam_mode: true
+exam_teacherpc_last_digit: 80
diff --git a/roles/lmn_exam/files/pam-exec.sh b/roles/lmn_exam/files/pam-exec.sh
index 4f54861..f905cfc 100644
--- a/roles/lmn_exam/files/pam-exec.sh
+++ b/roles/lmn_exam/files/pam-exec.sh
@@ -5,10 +5,16 @@
 
 if [[ "${PAM_USER}" =~ -exam$ ]]; then
   systemctl start firewalld.service
+  if [[ -f /usr/local/sbin/no-way-out-nftable ]]; then
+    /usr/local/sbin/no-way-out-nftable || true
+  fi
   if systemctl is-enabled --quiet libvirtd.service; then
     systemctl restart libvirtd.service
   fi
 elif ! (users | grep -q -- "-exam"); then
+  if /usr/sbin/nft list tables | /usr/bin/grep -q filtermacvtap; then
+    /usr/sbin/nft delete table netdev filtermacvtap || true
+  fi
   systemctl stop firewalld.service
   if systemctl is-enabled --quiet libvirtd.service; then
     systemctl restart libvirtd.service
diff --git a/roles/lmn_exam/tasks/main.yml b/roles/lmn_exam/tasks/main.yml
index 0e3bc4e..1d0893e 100644
--- a/roles/lmn_exam/tasks/main.yml
+++ b/roles/lmn_exam/tasks/main.yml
@@ -50,6 +50,38 @@
     - pam-exec.sh
     - rmexam
 
+- name: Append teacherPC to exam_destination_allowed_ipv4 addresses
+  ansible.builtin.set_fact:
+    exam_destination_allowed_ipv4: "{{ exam_destination_allowed_ipv4 + (exam_teacherpc_ips | default([ ansible_default_ipv4.address.rsplit('.', 1)[0] ~ '.' ~ exam_teacherpc_last_digit ])) }}"
+  when:
+    - exam_destination_allowed_ipv4 is defined
+    - exam_destination_allowed_ipv4 | length > 0
+    - exam_teacherpc_ips is defined or exam_teacherpc_last_digit | default('') | string | length > 0
+
+- name: Install no-way-out-policy
+  ansible.builtin.template:
+    src: no-way-out.xml.j2
+    dest: "/etc/firewalld/policies/no-way-out-{{ item }}.xml"
+    mode: '0644'
+  vars:
+    zones:
+      - HOST
+      - "{{ 'libvirt' if vm_support | default(false) else '' }}"
+  loop: "{{ zones | reject('match','^$') }}"
+  when:
+    - exam_destination_allowed_ipv4 is defined
+    - exam_destination_allowed_ipv4 | length > 0
+
+- name: Install no-way-out nf-table for macvtap device
+  ansible.builtin.template:
+    src: no-way-out-nftable.j2
+    dest: "/usr/local/sbin/no-way-out-nftable"
+    mode: '0755'
+  when:
+    - exam_destination_allowed_ipv4 is defined
+    - exam_destination_allowed_ipv4 | length > 0
+    - vm_support is defined and vm_support
+
 - name: Enable login script via pam_exec.so
   ansible.builtin.lineinfile:
     dest: /etc/pam.d/common-session
diff --git a/roles/lmn_exam/templates/no-way-out-nftable.j2 b/roles/lmn_exam/templates/no-way-out-nftable.j2
new file mode 100644
index 0000000..93305a9
--- /dev/null
+++ b/roles/lmn_exam/templates/no-way-out-nftable.j2
@@ -0,0 +1,43 @@
+#!/usr/bin/bash
+
+set -eu
+
+interfaces=$(/usr/bin/ip link | /usr/bin/sed -En 's/.*(macvtap-.*)@.*/\1/p')
+gateway=$(/usr/bin/ip route list default | /usr/bin/head -1 | /usr/bin/cut -f 3 -d " ")
+
+filterchain=""
+for interface in ${interfaces}; do
+  filterchain=$(cat <<- EOF
+${filterchain}
+
+    chain filterin_${interface} {
+        type filter hook ingress device ${interface} priority filter; policy drop;
+        ip saddr \$allowed_ipv4 accept
+        ip saddr ${gateway} accept
+        ip saddr 255.255.255.255 accept
+        ether type arp accept
+    }
+
+    chain filterout_${interface} {
+        type filter hook egress device ${interface} priority filter; policy drop;
+        ip daddr \$allowed_ipv4 accept
+        ip daddr ${gateway} accept
+        ip daddr 255.255.255.255 accept
+        ether type arp accept
+    }
+EOF
+)
+done
+
+
+
+nft_table=$(cat <<- EOF
+define allowed_ipv4 = { {{ exam_destination_allowed_ipv4 | join(",") }} }
+
+table netdev filtermacvtap {
+${filterchain}
+}
+EOF
+)
+
+echo "$nft_table" | /usr/sbin/nft -f -
diff --git a/roles/lmn_exam/templates/no-way-out.xml.j2 b/roles/lmn_exam/templates/no-way-out.xml.j2
new file mode 100644
index 0000000..7cf782f
--- /dev/null
+++ b/roles/lmn_exam/templates/no-way-out.xml.j2
@@ -0,0 +1,10 @@
+<policy target="REJECT">
+{% for address in exam_destination_allowed_ipv4 %}
+<rule family="ipv4">
+<destination address="{{ address }}"/>
+<accept/>
+</rule>
+{% endfor %}
+<ingress-zone name="{{ item }}"/>
+<egress-zone name="ANY"/>
+</policy>
diff --git a/roles/lmn_finish/handlers/main.yml b/roles/lmn_finish/handlers/main.yml
new file mode 100644
index 0000000..bae24ff
--- /dev/null
+++ b/roles/lmn_finish/handlers/main.yml
@@ -0,0 +1,4 @@
+---
+- name: Reboot client
+  ansible.builtin.command:
+    cmd: "shutdown -r -t 60"
diff --git a/roles/lmn_finish/tasks/main.yaml b/roles/lmn_finish/tasks/main.yaml
index 5f3a787..d7ec865 100644
--- a/roles/lmn_finish/tasks/main.yaml
+++ b/roles/lmn_finish/tasks/main.yaml
@@ -6,6 +6,8 @@
     - "{{ extra_pkgs }}"
     - "{{ extra_pkgs1 }}"
     - "{{ extra_pkgs2 }}"
+  tags:
+    - baseinstall
 
 - name: Add backports for {{ ansible_distribution_release }}
   ansible.builtin.apt_repository:
@@ -14,7 +16,7 @@
       main non-free-firmware
     state: present
     update_cache: true
-#  when: extra_pkgs_bpo|length
+  when: extra_pkgs_bpo | length > 0 or extra_pkgs_bpo1 | length > 0 or extra_pkgs_bpo2 | length > 0
 
 - name: Install extra packages from backports
   ansible.builtin.apt:
@@ -25,6 +27,19 @@
     - "{{ extra_pkgs_bpo }}"
     - "{{ extra_pkgs_bpo1 }}"
     - "{{ extra_pkgs_bpo2 }}"
+  when: extra_pkgs_bpo | length > 0 or extra_pkgs_bpo1 | length > 0 or extra_pkgs_bpo2 | length > 0
+
+
+- name: Check if former ansible-stamp exists
+  ansible.builtin.stat:
+    path: /var/local/ansible-stamps
+  register: stamp_exists
+
+- name: Trigger Reboot if no former ansible-run is found
+  ansible.builtin.debug:
+    msg: "First Ansible-Run on Client - Reboot handler started"
+  changed_when: not stamp_exists.stat.exists
+  notify: "Reboot client"
 
 - name: Timestamp successfull run and send up-to-date report
   ansible.builtin.shell:
diff --git a/roles/lmn_kde/defaults/main.yml b/roles/lmn_kde/defaults/main.yml
index 779142b..065c5ba 100644
--- a/roles/lmn_kde/defaults/main.yml
+++ b/roles/lmn_kde/defaults/main.yml
@@ -3,9 +3,10 @@ kde_desktop_pkg:
   - akonadi-backend-sqlite
   - arduino
   - bluefish
-  - calligra
+  # - calligra
   - codeblocks
   - dia
+  - filius
   - flameshot
   - freecad
   - fritzing
@@ -14,8 +15,9 @@ kde_desktop_pkg:
   - inkscape
   - kde-full
   - keepassxc
+  - kicad
+  - kicad-doc-de
   - librecad
-  - mu-editor
   - openboard
   - qtcreator
   - spyder
@@ -34,3 +36,5 @@ kde_desktop_pkg:
   - xdg-desktop-portal-kde
   - xdg-desktop-portal-wlr # share screen in browser
   - xournalpp
+
+kde_desktop_pkg_bpo: [ ]
diff --git a/roles/lmn_kde/tasks/main.yml b/roles/lmn_kde/tasks/main.yml
index 052606b..0b76358 100644
--- a/roles/lmn_kde/tasks/main.yml
+++ b/roles/lmn_kde/tasks/main.yml
@@ -8,19 +8,14 @@
     repo: deb http://deb.debian.org/debian/ {{ ansible_distribution_release }}-backports main non-free-firmware
     state: present
     update_cache: true
+  when: kde_desktop_pkg_bpo | length > 0
 
 - name: Install extra packages from backports
   ansible.builtin.apt:
-    name:
-      - filius
-      - kicad
-      - kicad-doc-de
-      - libreoffice
-      - libreoffice-l10n-de
-      - libreoffice-qt5
-    state: latest # noqa package-latest
+    name: "{{ kde_desktop_pkg_bpo }}"
     autoremove: true
     default_release: "{{ ansible_distribution_release }}-backports"
+  when: kde_desktop_pkg_bpo | length > 0
 
 
 - name: Create akonadi config dir
diff --git a/roles/lmn_localhome/tasks/main.yml b/roles/lmn_localhome/tasks/main.yml
index 3122720..a06998b 100644
--- a/roles/lmn_localhome/tasks/main.yml
+++ b/roles/lmn_localhome/tasks/main.yml
@@ -9,7 +9,7 @@
   ansible.builtin.blockinfile:
     path: /usr/share/sddm/themes/debian-breeze/Main.qml
     marker: // {mark} ANSIBLE MANAGED BLOCK localhome
-    insertbefore: '\s+//Footer'
+    insertbefore: '^}$'
     block: |
       Text {
          id: localhome
@@ -33,7 +33,6 @@
     dest: /etc/profile.d/lmn-logout.sh
     mode: '0755'
     content: |
-      [[ "${UID}" -gt 10000 ]] && ! findmnt "/lmn/media/${USER}/home" > /dev/null && exit 0
       {% if localhome_logout_missing_serverhome %}
       [[ "${UID}" -gt 10000 ]] && ! findmnt /srv/samba/schools/default-school > /dev/null && exit 0
       {% endif %}
diff --git a/roles/lmn_misc/files/bootorder.sh b/roles/lmn_misc/files/bootorder.sh
index a0fb6cd..e3ef2a9 100644
--- a/roles/lmn_misc/files/bootorder.sh
+++ b/roles/lmn_misc/files/bootorder.sh
@@ -5,11 +5,11 @@
 set -eu
 
 cur="$(efibootmgr | grep -Ei 'BootOrder:' | \
-		     sed -E 's/^BootOrder: ([[:xdigit:]]{4}),.+$/\1/')"
-pxeip4="$(efibootmgr | grep -Ei "IP.*4" | \
-		     sed -E 's/^Boot([[:xdigit:]]{4}).+$/\1/')"
+                    sed -E 's/^BootOrder: ([[:xdigit:]]{4}),.+$/\1/')"
+pxeip4="$(efibootmgr | grep -Ei "IP.{0,5}4" | \
+                    sed -E 's/^Boot([[:xdigit:]]{4}).+$/\1/' | paste -sd, -)"
 debian="$(efibootmgr | grep -Ei "debian" | \
-		     sed -E 's/^Boot([[:xdigit:]]{4}).+$/\1/')"
+                    sed -E 's/^Boot([[:xdigit:]]{4}).+$/\1/' | paste -sd, -)"
 
 if [[ "$cur" != "$pxeip4" ]] && [[ -n "$pxeip4" ]] && [[ -n "$debian" ]] ; then
     efibootmgr -o $pxeip4,$debian
diff --git a/roles/lmn_misc/tasks/main.yml b/roles/lmn_misc/tasks/main.yml
index 22134c5..23dce2b 100644
--- a/roles/lmn_misc/tasks/main.yml
+++ b/roles/lmn_misc/tasks/main.yml
@@ -98,7 +98,7 @@
       export superusers
       password_pbkdf2 root {{ grub_pwd }}
   notify: Run update-grub
-  when: grub_pwd|default(false)
+  when: grub_pwd | bool | default(false)
 
 - name: Allow booting grub menu entries
   ansible.builtin.lineinfile:
@@ -167,6 +167,8 @@
     src: reporter.j2
     dest: /usr/local/sbin/reporter
     mode: '0755'
+  tags:
+    - baseinstall
 
 - name: Provide services and timers for reporter
   ansible.builtin.copy:
@@ -177,12 +179,16 @@
     - reporter.service
     - reporter.timer
   when: misc_reporter
+  tags:
+    - baseinstall
 
 - name: Enable reporter.timer
   ansible.builtin.systemd:
     name: reporter.timer
     enabled: true
   when: misc_reporter
+  tags:
+    - baseinstall
 
 # Prepare CloneScreen on Presenter PCs
 
diff --git a/roles/lmn_network/tasks/main.yml b/roles/lmn_network/tasks/main.yml
index 7a39349..571c107 100644
--- a/roles/lmn_network/tasks/main.yml
+++ b/roles/lmn_network/tasks/main.yml
@@ -5,14 +5,14 @@
     mode: '0644'
     content: >
       {{ apt_conf }}
-  when: apt_conf|default(false)
+  when: apt_conf | bool | default(false)
 
 - name: Set NTP server
   ansible.builtin.lineinfile:
     path: /etc/systemd/timesyncd.conf
     insertafter: '^#NTP='
     line: NTP={{ ntp_serv }}
-  when: ntp_serv|default(false)
+  when: ntp_serv | bool | default(false)
 
 - name: Add proposed-updates repository
   ansible.builtin.apt_repository:
diff --git a/roles/lmn_printer/tasks/main.yml b/roles/lmn_printer/tasks/main.yml
index 960b1fa..996cb2e 100644
--- a/roles/lmn_printer/tasks/main.yml
+++ b/roles/lmn_printer/tasks/main.yml
@@ -37,7 +37,7 @@
     line: "SystemGroup root lpadmin {{ printer_admin_group }}"
     regexp: '^SystemGroup'
     state: present
-  when: printer_admin_group | length
+  when: printer_admin_group | length > 0
 
 - name: Disable cups-browsed
   ansible.builtin.systemd:
diff --git a/roles/lmn_security/tasks/main.yml b/roles/lmn_security/tasks/main.yml
index 62e2754..6c9edcf 100644
--- a/roles/lmn_security/tasks/main.yml
+++ b/roles/lmn_security/tasks/main.yml
@@ -5,6 +5,8 @@
     key: "{{ item }}"
   loop: "{{ keys2deploy }}"
   when: keys2deploy is defined
+  tags:
+    - baseinstall
 
 - name: Allow sudo without password for ansible
   ansible.builtin.lineinfile:
@@ -14,12 +16,16 @@
     owner: root
     group: root
     mode: '0700'
+  tags:
+    - baseinstall
 
 - name: Disable ansible user login
   ansible.builtin.user:
     name: ansible
     password_lock: true
   when: security_defaultuser_login_disable
+  tags:
+    - baseinstall
 
 - name: Limit SSH access to user ansible
   ansible.builtin.blockinfile:
diff --git a/roles/lmn_sssd/defaults/main.yml b/roles/lmn_sssd/defaults/main.yml
new file mode 100644
index 0000000..e7664ac
--- /dev/null
+++ b/roles/lmn_sssd/defaults/main.yml
@@ -0,0 +1,2 @@
+---
+sssd_domjoin_user: global-admin
diff --git a/roles/lmn_sssd/handlers/main.yml b/roles/lmn_sssd/handlers/main.yml
index 6fdda36..cddc361 100644
--- a/roles/lmn_sssd/handlers/main.yml
+++ b/roles/lmn_sssd/handlers/main.yml
@@ -1,6 +1,5 @@
 - name: Restart sssd
-  ansible.builtin.service:
+  ansible.builtin.systemd:
     name: sssd
     state: restarted
     enabled: true
-  listen: "Restart sssd"
diff --git a/roles/lmn_sssd/tasks/main.yml b/roles/lmn_sssd/tasks/main.yml
index ed44ce5..c816d13 100644
--- a/roles/lmn_sssd/tasks/main.yml
+++ b/roles/lmn_sssd/tasks/main.yml
@@ -10,15 +10,27 @@
   ansible.builtin.template:
     src: sssd.conf.j2
     dest: /etc/sssd/sssd.conf
-    mode: '0600'
+    mode: '0640'
   notify: Restart sssd
 
-  ## Either one of the variables is defined:
+- name: Check if the machine account password and the join are still valid
+  ansible.builtin.shell:
+    cmd: adcli testjoin -D {{ domain | upper }}
+  register: adcli_test_result
+  failed_when: false
+  changed_when: false
+
+  # If domjoin not valid:
 - name: Join the domain
   ansible.builtin.shell:
     cmd: >
-      echo "{{ ansible_cmdline.adpw | default('') + adpw.user_input | default('') }}" |
-      adcli join --stdin-password -U global-admin {{ domain | upper }}
-  when: >
-    ansible_cmdline.adpw | default('') | length > 0 or
-    adpw.user_input | default('') | length > 0
+      echo "{{ ad_passwd }}" | adcli join --stdin-password -U {{ ad_user }} {{ domain | upper }}
+  no_log: true
+  vars:
+    ad_user: "{{ 'global-admin' if (adpw.user_input | default(ansible_cmdline.adpw) | default('') | length > 0) else sssd_domjoin_user }}"
+    ad_passwd: "{{ adpw.user_input | default('') if  adpw.user_input | default ('') | length > 0 else ansible_cmdline.adpw | default(sssd_domjoin_passwd) | default('') }}"
+  throttle: 1
+  when:
+    - adpw.user_input | default('') | length > 0 or
+      ansible_cmdline.adpw | default(sssd_domjoin_passwd) | default('') | length > 0
+    - adcli_test_result.rc != 0
diff --git a/roles/lmn_sssd/templates/sssd.conf.j2 b/roles/lmn_sssd/templates/sssd.conf.j2
index fc3bf48..1591f1d 100644
--- a/roles/lmn_sssd/templates/sssd.conf.j2
+++ b/roles/lmn_sssd/templates/sssd.conf.j2
@@ -9,7 +9,9 @@ ad_domain = {{ domain }}
 id_provider = ad
 access_provider = ad
 use_fully_qualified_names = False
+{% if localhome is defined and localhome %}
 cache_credentials = True
+{% endif %}
 krb5_store_password_if_offline = True
 default_shell = /usr/bin/bash
 # default: # ldap_id_mapping = True
@@ -17,6 +19,7 @@ ad_gpo_access_control = disabled
 ad_gpo_ignore_unreadable = True
 ad_maximum_machine_account_password_age = 0
 ignore_group_members = True
+krb5_renew_interval = 1h
 {% if localhome is defined and localhome %}
 override_homedir = /home/%u
 {% endif %}
diff --git a/roles/lmn_tmpfixes/tasks/main.yml b/roles/lmn_tmpfixes/tasks/main.yml
index 8e90138..23e0bf8 100644
--- a/roles/lmn_tmpfixes/tasks/main.yml
+++ b/roles/lmn_tmpfixes/tasks/main.yml
@@ -8,3 +8,27 @@
     - bookworm.yml
     - cleanup.yml
   when: ansible_distribution_release == "bookworm" 
+
+- name: Set chromium gl-flags fixing AMD graphic issues
+  ansible.builtin.copy:
+    dest: /etc/chromium.d/fvs
+    content: |
+      export CHROMIUM_FLAGS="$CHROMIUM_FLAGS --use-gl=desktop"
+  when: ansible_board_vendor == "LENOVO" and
+    (ansible_board_name == "312D" or ansible_board_name == "312A")
+
+- name: Fix 8086:4909 external graphics card
+  ansible.builtin.replace:
+    dest: "/etc/default/grub"
+    regexp: 'GRUB_CMDLINE_LINUX=""$'
+    replace: 'GRUB_CMDLINE_LINUX="i915.force_probe=4909"'
+  notify: Run update-grub
+  when: ansible_board_vendor == "LENOVO" and ansible_board_name == "32CB"
+
+- name: Remove calligra
+  ansible.builtin.apt:
+    name:
+      - calligra
+    state: absent
+    purge: true
+    autoremove: true
diff --git a/roles/lmn_vm/files/lmn-vm b/roles/lmn_vm/files/lmn-vm
index 7d4011e..006b84c 100644
--- a/roles/lmn_vm/files/lmn-vm
+++ b/roles/lmn_vm/files/lmn-vm
@@ -3,6 +3,11 @@
 %role-student ALL=(lmnsynci) NOPASSWD: /usr/local/bin/vm-sync
 %examusers ALL=(lmnsynci) NOPASSWD: /usr/local/bin/vm-sync
 
+# vm-delete: Delete VM-Images
+%role-teacher ALL=(lmnsynci) NOPASSWD: /usr/local/bin/vm-delete
+%role-student ALL=(lmnsynci) NOPASSWD: /usr/local/bin/vm-delete
+%examusers ALL=(lmnsynci) NOPASSWD: /usr/local/bin/vm-delete
+
 # vm-aria2: Start/Stop aria2 as systemd-service for VM-Images
 lmnsynci ALL=(root) NOPASSWD: /usr/local/bin/vm-aria2
 
diff --git a/roles/lmn_vm/files/vm-delete b/roles/lmn_vm/files/vm-delete
new file mode 100755
index 0000000..84a8aba
--- /dev/null
+++ b/roles/lmn_vm/files/vm-delete
@@ -0,0 +1,45 @@
+#!/bin/bash
+
+set -eu
+
+directory="/lmn/vm"
+
+if [ ! -d "$directory" ]; then
+  echo "No VM directory found."
+  exit 1
+fi
+
+qcow2_files=("$directory"/*.qcow2)
+
+if [ "${#qcow2_files[@]}" -eq 0 ]; then
+  echo "Keine QCOW2-Dateien gefunden."
+  exit 0
+fi
+
+echo "Gefundene QCOW2-Dateien:"
+echo "-------------------------------------------------------------"
+printf "%-50s %10s\n" "Datei" "Größe (MB)"
+echo "-------------------------------------------------------------"
+
+for file in "${qcow2_files[@]}"; do
+  size=$(du -m "$file" | cut -f1) # Größe in MB
+  printf "%-50s %10d\n" "$file" "$size"
+done
+
+echo "-------------------------------------------------------------"
+
+for file in "${qcow2_files[@]}"; do
+  read -rp "Möchtest du die Datei $file löschen? (j/n) " confirmation
+  if [[ "$confirmation" == "j" || "$confirmation" == "J" ]]; then
+    link_count=$(stat -c %h "$file")
+    rm "$file"
+    echo "$file wurde gelöscht."
+    if [ "$link_count" -gt 1 ]; then
+      echo "Achtung: $file hat noch $((link_count - 1)) weitere Hardlinks."
+      echo "Diese liegen evtl. unter:"
+      echo "- /var/tmp/${UID}/vm/ (temporäre VMs, werden automatisch beim Neustart gelöscht)"
+      echo "- /var/vm/${UID}/ (persistente VMs)"
+    fi
+    echo
+  fi
+done
diff --git a/roles/lmn_vm/files/vm-link-images b/roles/lmn_vm/files/vm-link-images
index e4c8618..0eccd04 100755
--- a/roles/lmn_vm/files/vm-link-images
+++ b/roles/lmn_vm/files/vm-link-images
@@ -19,8 +19,9 @@ done
 shift "$((OPTIND -1))"
 
 # link system-VM-Images to User VM Directory
-for i in *.qcow2; do
-  [[ -f "${VM_DIR}/${i}" ]] || ln "${i}" "${VM_DIR}/${i}"
+for filename in "$@"; do
+  filename="$(basename ${filename})"
+  [[ -f "${VM_DIR}/${filename}" ]] || ln "${filename}" "${VM_DIR}/${filename}"
 done
 
 # allow lmnsynci to remove old vm images 
diff --git a/roles/lmn_vm/files/vm-netboot b/roles/lmn_vm/files/vm-netboot
index c21024f..92ca621 100755
--- a/roles/lmn_vm/files/vm-netboot
+++ b/roles/lmn_vm/files/vm-netboot
@@ -7,10 +7,10 @@ set -eu
 ## Imporant for all virsh libvirt calls:
 export XDG_CONFIG_HOME="/var/tmp/vm/${UID}"
 
-menu=(standard "CLI Standard Debian GNU/Linux NFS"
-      standard-ram "CLI Standard Debian GNU/Linux RAM"
-      kde-desktop "KDE Plasma Desktop Debian GNU/Linux NFS"
-      gnome-desktop "Gnome Desktop Debian GNU/Linux NFS")
+menu=(standard-edu "CLI Standard Debian GNU/Linux NFS"
+      standard-edu-ram "CLI Standard Debian GNU/Linux RAM"
+      kde-edu "KDE Plasma Desktop Debian GNU/Linux NFS"
+      gnome-edu "Gnome Desktop Debian GNU/Linux NFS")
 img=$(dialog --clear --backtitle "Virtual Machine Chooser" \
              --title "Choose the Virtual Machine to Start" \
              --menu "Start VM:" 12 70 6 "${menu[@]}" 2>&1 >/dev/tty)
@@ -22,6 +22,8 @@ mac="$(ip link | grep -A1 -m1 "macvtap-" | \
           sed -nE "s%\s+link/ether ([[:xdigit:]:]{17}) .+%\1%p")"
 tapdev="$(ip link | grep -A1 -m1 "macvtap-" | sed -nE "s%^[1-9]:\s(\S+)@.*%\1%p")"
 
+livebox=$(host livebox | sed -E "s/.+ ([0-9.]+)$/\1/")
+
 if [[ $# -eq 0 ]] ; then
     mem=$(sed -En "s/^MemAvailable:\s+([0-9]+)\s+kB/\1/p" /proc/meminfo)
     cpu=$(sed -En "0,/^cpu cores/s/^cpu cores\s+:\s+([0-9]+)/\1/p" /proc/cpuinfo)
@@ -31,8 +33,8 @@ else
     arg=("$@")
 fi
 
-kernel="http://livebox/d-i/n-live/${img%-ram}/live/vmlinuz"
-initrd="http://livebox/d-i/n-live/${img%-ram}/live/initrd.img"
+kernel="http://${livebox}/d-i/n-live/${img%-ram}/live/vmlinuz"
+initrd="http://${livebox}/d-i/n-live/${img%-ram}/live/initrd.img"
 kargs=(boot=live components splash locales=de_DE.UTF-8 keyboard-layouts=de
        swap=true live-config.timezone=Europe/Berlin)
 
@@ -42,10 +44,10 @@ case "$img" in
         kargs+=(console=ttyS0)
         ;;&
     *-ram)
-        kargs+=("fetch=http://10.190.1.2/d-i/n-live/${img%-ram}/live/filesystem.squashfs")
+        kargs+=("root=live:nfs4:${livebox}:/images/${img%-ram}/live/filesystem.squashfs rd.live.ram=1")
         ;;
     *)
-        kargs+=(netboot=nfs "nfsroot=10.190.1.2:/srv/nfs/debian-live/${img%-ram}")
+        kargs+=("root=live:nfs4:${livebox}:/images/${img%-ram}/live/filesystem.squashfs")
         ;;
 esac
 
diff --git a/roles/lmn_vm/files/vm-run b/roles/lmn_vm/files/vm-run
index a957a49..af0bd67 100755
--- a/roles/lmn_vm/files/vm-run
+++ b/roles/lmn_vm/files/vm-run
@@ -90,17 +90,21 @@ create_clone() {
     local VM_NAME="$1"
 
     if ! [[ -f "${VM_SYSDIR}/${VM_NAME}.qcow2" || -f "${VM_DIR}/${VM_NAME}.qcow2" ]]; then
-	echo "qcow2 File does not exists." >&2
-	exit 1
+      echo "qcow2 File does not exists." >&2
+      exit 1
     fi
 
     # Create User-VM-Dir and link system VM-Images
     [[ -d "${VM_DIR}" ]] || mkdir -p "${VM_DIR}"
-    if [[ "${PERSISTENT}" -eq 1 ]]; then
-        sudo /usr/local/bin/vm-link-images -p
-    else
-        sudo /usr/local/bin/vm-link-images
-    fi
+    IMAGE="${VM_NAME}.qcow2"
+    while [[ -n ${IMAGE} ]]; do
+      if [[ "${PERSISTENT}" -eq 1 ]]; then
+        sudo /usr/local/bin/vm-link-images -p "${IMAGE}"
+      else
+        sudo /usr/local/bin/vm-link-images "${IMAGE}"
+      fi
+      IMAGE="$(qemu-img info -U "${VM_DIR}/${IMAGE}" | grep "^backing file:" | cut -d ' ' -f 3)"
+    done
 
     # Create backing file
     cd "${VM_DIR}"
@@ -130,18 +134,30 @@ create_printerlist() {
 }
 
 create_mountlist() {
-  if id | grep -q teachers; then
-    NETHOME=/srv/samba/schools/default-school/teachers/$USER
-  else
-    NETHOME=(/srv/samba/schools/default-school/students/*/"$USER")
-  fi
-  NETHOME="${NETHOME#/srv/samba/schools}"
-  cat << EOF > "/lmn/media/${USER}/.mounts.csv"
+  NETHOMEPART="${NETHOME#/srv/samba/schools}"
+  cat << EOF > "${VMINFO_DIR}/.mounts.csv"
 Drive;Remotepath
-H;\\\\10.190.1.1${NETHOME//\//\\}
-T;\\\\10.190.1.1\default-school\share
+H;\\\\server.pn.steinbeis.schule${NETHOMEPART//\//\\}
+T;\\\\server.pn.steinbeis.schule\\default-school\\share
 EOF
-  echo "${USER}" > "/lmn/media/${USER}/.user"
+  echo "${USER}" > "/${VMINFO_DIR}/.user"
+}
+
+start_virtiofs_service() {
+  local target_name=$1
+  local shared_dir=$2
+  local drive_letter=$3
+  local socket="/run/user/${UID}/virtiofs-${VM_NAME}-${target_name,,}.sock"
+
+  systemd-run --user /usr/local/bin/virtiofsd --uid-map=":${GUEST_UID}:${UID}:1:" --gid-map=":${GUEST_GID}:$(id -g):1:" \
+        --socket-path "${socket}" --shared-dir "${shared_dir}" --syslog
+
+  if [[ $? -ne 0 ]]; then
+    echo "Error starting virtiofsd for ${target_name}." >&2
+    return 1
+  fi
+
+  LIBVIRTOPTS="${LIBVIRTOPTS} --filesystem driver.type=virtiofs,accessmode=passthrough,target.dir=${target_name},xpath1.set=./source/@socket=${socket}"
 }
 
 start_virtiofsd() {
@@ -151,9 +167,17 @@ start_virtiofsd() {
     [[ "$GUEST_GID" == 0 ]] && GUEST_GID=1010
   fi
   # END temporary fix
-  socket="/run/user/$(id -u $USER)/virtiofs-${VM_NAME}.sock"
-  systemd-run --user /usr/local/bin/virtiofsd --uid-map=:${GUEST_UID}:${UID}:1: --gid-map=:${GUEST_GID}:$(id -g):1: \
-	  --socket-path "$socket" --shared-dir "/lmn/media/${USER}" --syslog
+
+  # start_virtiofs_service "VM-Data" "/lmn/media/${USER}" "Y"
+  # start_virtiofs_service "default-school" "/srv/samba/schools/default-school" "Y"
+
+  # Home@PC / VM-Data
+  # if the environment variable VMLEGACY is set, /lmn/media/USER is forced
+  if [[ "${HOME}" != "${NETHOME}" && ! -v VMLEGACY ]]; then
+    start_virtiofs_service "Home_Linux" "${HOME}" "Y"
+  else
+    start_virtiofs_service "VM-Data" "/lmn/media/${USER}" "Y"
+  fi
 }
 
 ask_really_persistent() {
@@ -216,7 +240,7 @@ while true; do
 	    shift
 	    ;;
     -o | --options )
-            LIBVIRTOPTS=$2
+	    LIBVIRTOPTS="${LIBVIRTOPTS} $2"
 	    shift 2
 	    ;;
     --no-viewer )
@@ -267,6 +291,7 @@ while true; do
               type="ethernet,mac=${mac},target.dev=${interface},xpath1.set=./target/@managed=no,model.type=virtio"
 	      LIBVIRTOPTS="${LIBVIRTOPTS} --network type=$type"
 	    done
+	    LIBVIRTOPTS="${LIBVIRTOPTS} --check mac_in_use=off"
 	    shift
 	    ;;
     --os )
@@ -315,18 +340,38 @@ if  ! virsh --connect="${QEMU}" list | grep "${VM_NAME}-clone"; then
       check_images
     fi
     if [[ "${NEWCLONE}" = 1 ]] || [[ ! -f "${VM_DIR}/${VM_NAME}-clone.qcow2" ]]; then
-        create_clone "${VM_NAME}"
+      create_clone "${VM_NAME}"
     fi
     # delete the old vm
     virsh --connect=qemu:///session undefine --nvram "${VM_NAME}-clone" || echo "${VM_NAME}-clone did not exist"
     #trap exit_script SIGHUP SIGINT SIGTERM
 
+    for dir in teachers examusers staff parents; do
+      if [[ -d "/srv/samba/schools/default-school/${dir}/${USER}" ]]; then
+        NETHOME="/srv/samba/schools/default-school/${dir}/${USER}"
+	break
+      fi
+    done
+    if [[ -z "${NETHOME+x}" ]]; then
+      NETHOME=(/srv/samba/schools/default-school/students/*/"$USER")
+    fi
+
+    if [[ "${HOME}" != "${NETHOME}" ]]; then
+      VMINFO_DIR="${HOME}"
+    else
+      VMINFO_DIR="/lmn/media/${USER}"
+    fi
     create_printerlist
     create_mountlist
 
     # start virtiofsd-service
     [[ "${QEMU}" = 'qemu:///session' ]] && start_virtiofsd
 
+    # Create VMInfo Json file
+    #( umask 027; ./vm-create-vminfo > "${VMINFO_DIR}/.vminfo.json" )
+    # Start vminfo.timer
+    systemctl --user restart vminfo.timer
+
     uuid=$(openssl rand -hex 16)
     uuid="${uuid:0:8}-${uuid:8:4}-${uuid:12:4}-${uuid:16:4}-${uuid:20:12}"
 
@@ -348,7 +393,6 @@ if  ! virsh --connect="${QEMU}" list | grep "${VM_NAME}-clone"; then
 	     --memorybacking source.type=memfd,access.mode=shared \
 	     --disk "${VM_DIR}/${VM_NAME}-clone.qcow2",driver.discard=unmap,target.bus=scsi,cache=writeback \
 	     --network=bridge=virbr0,model.type=virtio \
-             --filesystem driver.type=virtiofs,accessmode=passthrough,target.dir=virtiofs,xpath1.set=./source/@socket="/run/user/${UID}/virtiofs-${VM_NAME}.sock" \
 	     --controller type=scsi,model=virtio-scsi \
 	     --check path_in_use=off \
              --connect="${QEMU}" \
diff --git a/roles/lmn_vm/files/vm-vminfo b/roles/lmn_vm/files/vm-vminfo
new file mode 100755
index 0000000..559d47f
--- /dev/null
+++ b/roles/lmn_vm/files/vm-vminfo
@@ -0,0 +1,117 @@
+#!/usr/bin/python3
+
+import argparse
+import struct
+import subprocess
+import json
+import sys
+
+from os import environ,path
+from impacket.krb5.ccache import CCache
+from base64 import b64encode
+
+home = ""
+nethome = ""
+vminfo = {}
+
+def get_printers():
+    printers = []
+    try:
+        result = subprocess.run(['lpstat', '-v'], capture_output=True, text=True, check=True)
+        for line in result.stdout.splitlines():
+            # Extrahiere den Druckernamen
+            printer_name = line.split()[2].rstrip(':')
+            ipp_url = f"ipp://192.168.122.1/printers/{printer_name}"
+            printer = { 'Name': printer_name, 'IppURL': ipp_url }
+            printers.append(printer)
+        return printers
+    except subprocess.CalledProcessError as e:
+        sys.stderr.write(f"Fehler beim Abrufen der Drucker: {e}")
+        return []
+
+def get_groups(username):
+    try:
+        result = subprocess.run(['id', '-Gnz',  username], capture_output=True, text=True, check=True)
+        groups = result.stdout.strip().split('\0')
+        return groups
+    except subprocess.CalledProcessError as e:
+        sys.stderr.write(f"Fehler beim Abrufen der Gruppen: {e}")
+        return []
+
+def get_krb5 ():
+    krb5 = {}
+    ccachefilename = environ.get('KRB5CCNAME').replace('FILE:', '')
+    if ccachefilename:
+        try:
+            ccache = CCache.loadFile(ccachefilename)
+            cred = ccache.toKRBCRED()
+            cred_enc = b64encode(cred)
+            krb5['cred'] = cred_enc.decode('utf-8')
+            krb5['starttime'] = ccache.credentials[0]['time']['starttime']
+            krb5['endtime'] = ccache.credentials[0]['time']['endtime']
+            krb5['renew_till'] = ccache.credentials[0]['time']['renew_till']
+        except:
+            sys.stderr.write("Fehler beim Ticket laden")
+    return krb5
+
+def get_mounts():
+    mounts = []
+    mounts.append({ 'Drive': 'H', 'RemotePath': '\\\\server.pn.steinbeis.schule' + nethome.replace('/srv/samba/schools','').replace('/','\\'), 'Name': 'Home_Server' })
+    mounts.append({ 'Drive': 'T', 'RemotePath': '\\\\server.pn.steinbeis.schule\default-school\share', 'Name': 'Tausch' })
+    return mounts
+
+def get_user_folders():
+    HOME="H:"
+    if environ.get('HOME') != nethome:
+        HOME="Y:"
+    folders = []
+    folders.append( {'Name': 'Personal', 'Path': f"{HOME}\Dokumente"} )
+    folders.append( {'Name': 'My Pictures', 'Path': f"{HOME}\Bilder"} )
+    folders.append( {'Name': 'My Music', 'Path': f"{HOME}\Musik"} )
+    folders.append( {'Name': 'My Video', 'Path': f"{HOME}\Videos"} )
+    return folders
+
+def get_quickaccess():
+    quickaccess = []
+    quickaccess.append( 'H:\\transfer' )
+    return quickaccess
+
+def parse_args():
+    parser = argparse.ArgumentParser()
+    #parser.add_argument('input_file', help="File in kirbi (KRB-CRED) or ccache format")
+    #parser.add_argument('output_file', help="Output file")
+    return parser.parse_args()
+
+
+def main():
+    global home, nethome
+
+    args = parse_args()
+
+    home = environ.get('HOME')
+
+    vminfo['User'] = environ.get('USER')
+    vminfo['Groups'] = get_groups(environ.get('USER'))
+
+    for dir in ['teachers','examusers','staff','parents']:
+        potential_path = f"/srv/samba/schools/default-school/{dir}/{vminfo['User']}"
+        if path.isdir(potential_path):
+            nethome = potential_path
+            break
+    if not nethome:
+        result = subprocess.run(['find', '/srv/samba/schools/default-school/students/', '-name', vminfo['User'], '-maxdepth', '2', '-type', 'd'], capture_output=True, text=True, check=False)
+        nethome = result.stdout.splitlines()[0]
+
+    vminfo['Printers'] = get_printers()
+    vminfo['krb5'] = get_krb5()
+    vminfo['Mounts'] = get_mounts()
+    vminfo['UserShellFolders'] = get_user_folders()
+    vminfo['QuickAccess'] = get_quickaccess()
+
+    vminfo_json = json.dumps(vminfo, ensure_ascii=False, indent=4)
+    print(vminfo_json)
+
+if __name__ == '__main__':
+    main()
+
+
diff --git a/roles/lmn_vm/tasks/main.yml b/roles/lmn_vm/tasks/main.yml
index a39325a..e2c312b 100644
--- a/roles/lmn_vm/tasks/main.yml
+++ b/roles/lmn_vm/tasks/main.yml
@@ -18,7 +18,9 @@
       - mktorrent
       - libvirt-daemon-system
       - virt-manager
+      - virt-viewer
       - dialog # for vm-netboot menu
+      - python3-impacket
 
     # - name: allow all users to use VMs
     #   lineinfile:
@@ -27,32 +29,6 @@
     #     insertafter: '#auth_unix_rw = "polkit"'
     #   notify: reload libvirtd
 
-- name: Configure pam_mount for VM bind mounts
-  ansible.builtin.blockinfile:
-    dest: /etc/security/pam_mount.conf.xml
-    marker: "<!-- {mark} ANSIBLE MANAGED BLOCK (bind mounts for VMs) -->"
-    block: |
-      <!-- bind mounts for the VMs, setting gid here does not work -->
-      <volume
-        path="~"
-        mountpoint="/lmn/media/%(USER)/home"
-        options="bind"
-        ><not><or><user>root</user><user>ansible</user><user>Debian-gdm</user><user>sddm</user>{% if localuser %}<user>{{ localuser }}</user>{% endif %}</or></not>
-      </volume>
-      <volume
-        path="/srv/samba/schools/default-school/share"
-        mountpoint="/lmn/media/%(USER)/share"
-        options="bind"
-        ><not><or><user>root</user><user>ansible</user><user>Debian-gdm</user><user>sddm</user>{% if localuser %}<user>{{ localuser }}</user>{% endif %}</or></not>
-      </volume>
-      <volume
-        path="/srv/samba/schools/default-school"
-        mountpoint="/lmn/media/%(USER)/school"
-        options="bind"
-        ><not><or><user>root</user><user>ansible</user><user>Debian-gdm</user><user>sddm</user>{% if localuser %}<user>{{ localuser }}</user>{% endif %}</or></not>
-      </volume>
-    insertafter: "<!-- END ANSIBLE MANAGED BLOCK .* -->"
-
 - name: Use umount script for proper cleanup
   ansible.builtin.blockinfile:
     dest: /etc/security/pam_mount.conf.xml
@@ -142,6 +118,7 @@
     group: root
     mode: '0755'
   loop:
+    - vm-delete
     - vm-create
     - vm-rebase
     - vm-run
@@ -149,6 +126,7 @@
     - vm-sync
     - vm-link-images
     - vm-virtiofsd
+    - vm-vminfo
     - virtiofsd
     - vm-aria2
     - uploadseed
@@ -236,3 +214,26 @@
     src: vm-netboot
     dest: /usr/local/bin/
     mode: '0755'
+
+- name: Provide vminfo service
+  ansible.builtin.copy:
+    content: |
+      [Unit]
+      Description=Create .vminfo.json for VMs
+      [Service]
+      Type=simple
+      ExecStart=/usr/bin/bash -c 'umask 027; /usr/local/bin/vm-vminfo > "{% if localhome %}/home{% else %}/lmn/media{% endif %}/${USER}/.vminfo.json"'
+    dest: /etc/systemd/user/vminfo.service
+    mode: '0644'
+
+- name: Provide vminfo timer
+  ansible.builtin.copy:
+    content: |
+      [Unit]
+      Description=Timer for vm-info
+      [Timer]
+      OnActiveSec=0s
+      OnUnitActiveSec=1h
+      Persistent=true
+    dest: /etc/systemd/user/vminfo.timer
+    mode: '0644'
diff --git a/roles/lmn_vpn/files/10-lmn-mount.sh b/roles/lmn_vpn/files/10-lmn-mount.sh
index 6f42725..cabbc58 100755
--- a/roles/lmn_vpn/files/10-lmn-mount.sh
+++ b/roles/lmn_vpn/files/10-lmn-mount.sh
@@ -13,30 +13,32 @@ if [[ "$CONNECTION_ID" = "VPN-Schule" ]]; then
     # Exit if server is already mounted
     findmnt /srv/samba/schools/default-school > /dev/null && exit 0
 
-    if ! klist -s  -c "${KRB5CCNAME}"; then
-      #echo "try to renew KRB5-Ticket" >&2
-      #sudo -u "${USERNAME}" kinit -R -c "${KRB5CCNAME}"
-      echo "KRB5-Ticket is expired. Sleep 3 seconds and hope it will be renewed after." >&2
-      sleep 3
-    fi
+    counter=1
+    while ! klist -s -c "${KRB5CCNAME}"; do
+      (( counter > 30 )) && exit 0
+      echo "KRB5-Ticket is expired. Sleep 1 seconds and hope it will be renewed after." >&2
+      # if (( counter == 10 )); then
+      #   echo "try to renew KRB5-Ticket" >&2
+      #   sudo -u "${USERNAME}" kinit -R -c "${KRB5CCNAME}"
+      # fi
+      sleep 1
+      ((counter++))
+    done
 
     echo "prepare mountpoints" >&2
     umask 0002
     mkdir -p /srv/samba/schools/default-school
     chmod 777  /srv/samba/schools/default-school
-    mkdir -p "/lmn/media/${USERNAME}/share"
-    
+
     mount -t cifs //server/default-school/ /srv/samba/schools/default-school \
           -o "sec=krb5i,cruid=${USERID},user=${USERNAME},uid=${USERID},gid=${GROUPID},file_mode=0700,dir_mode=0700,mfsymlinks,nobrl,actimeo=600,cache=loose,echo_interval=10"
 	  echo "after mount" >&2
-    mount --bind /srv/samba/schools/default-school/share "/lmn/media/${USERNAME}/share"
     SUDO_USER=$USERNAME /usr/local/bin/install-printers.sh
   elif [[ "$NM_DISPATCHER_ACTION" = "pre-down" ]]; then
     # FIXME: Only umount server when Wireguard-Connection was the only connection to server.
     # Dirty fix (works only in fvs-IP-Range)
     if ! (ip r s | grep "10.190." | grep -v wg0); then
-      echo "Try to umount server shares"
-      umount "/lmn/media/${USERNAME}/share"
+      echo "Try to umount server"
       umount /srv/samba/schools/default-school
     fi
   fi
diff --git a/roles/lmn_vpn/files/mountserver b/roles/lmn_vpn/files/mountserver
index 71c61cc..708a26e 100644
--- a/roles/lmn_vpn/files/mountserver
+++ b/roles/lmn_vpn/files/mountserver
@@ -3,7 +3,6 @@ set -eu
 
 exit_script() {
     echo "unmounting media - terminated by trap!" >> "/tmp/${SUDO_UID}-exit-mount.log"
-    findmnt "/lmn/media/${SUDO_USER}/share" && umount "/lmn/media/${SUDO_USER}/share"
     findmnt "/srv/samba/schools/default-school" && umount "/srv/samba/schools/default-school"
     trap - SIGHUP SIGINT SIGTERM # clear the trap
     kill -- -$$ # Sends SIGTERM to child/sub processes
@@ -14,11 +13,9 @@ findmnt /srv/samba/schools/default-school > /dev/null && exit 0
 umask 0002
 mkdir -p /srv/samba/schools/default-school
 chmod 777  /srv/samba/schools/default-school
-mkdir -p "/lmn/media/${SUDO_USER}/share"
 
 mount -t cifs //server/default-school/ /srv/samba/schools/default-school \
       -o "sec=krb5i,cruid=${SUDO_UID},user=${SUDO_USER},uid=${SUDO_UID},gid=${SUDO_GID},file_mode=0700,dir_mode=0700,mfsymlinks,nobrl,actimeo=600,cache=loose,echo_interval=10"
-mount --bind /srv/samba/schools/default-school/share "/lmn/media/${SUDO_USER}/share"
 
 echo "Einbindung erfolgreich!"
 echo "Dieses Fenster bitte nicht schließen!"
diff --git a/roles/lmn_vpn/tasks/wg_config.yml b/roles/lmn_vpn/tasks/wg_config.yml
index d1bf9ce..1e42049 100644
--- a/roles/lmn_vpn/tasks/wg_config.yml
+++ b/roles/lmn_vpn/tasks/wg_config.yml
@@ -5,7 +5,7 @@
       - wireguard
 
 - name: Check if wg_server is reachable
-  ansible.builtin.command: echo "Test if wg_server is reachable"
+  ansible.builtin.command: echo "reachable"
   delegate_to: wireguard_server
   register: result
   changed_when: false
@@ -17,10 +17,12 @@
       * server not reachable
       * no matching ssh-key
   changed_when: true
-  when: result.unreachable is defined and result.unreachable
+  when: result.stdout is not defined or result.stdout!="reachable"
 
 - name: Configure WG Server
-  when: result.unreachable is not defined or not result.unreachable
+  when:
+    - result.stdout is defined and result.stdout=="reachable"
+    - not run_in_installer|default(false)|bool
   block:
     - name: Set facts wg_clientname
       ansible.builtin.set_fact:
diff --git a/roles/lmn_wlan/tasks/eap-tls_check-certificate.yaml b/roles/lmn_wlan/tasks/eap-tls_check-certificate.yaml
index 74bc7c4..79932f0 100644
--- a/roles/lmn_wlan/tasks/eap-tls_check-certificate.yaml
+++ b/roles/lmn_wlan/tasks/eap-tls_check-certificate.yaml
@@ -27,7 +27,7 @@
   when: cert_client_active.stat.exists
 
 - name: Check if radius-server is reachable
-  ansible.builtin.command: echo "Test if radius-server is reachable"
+  ansible.builtin.command: echo "reachable"
   delegate_to: radius_server
   register: radius_reachable
   changed_when: false
@@ -40,12 +40,13 @@
       - "* server not reachable"
       - "* no matching ssh-key"
   changed_when: true
-  when: radius_reachable.unreachable is defined and radius_reachable.unreachable
+  when: radius_reachable.stdout is not defined or radius_reachable.stdout!='reachable'
 
 - name: Issue radius certificate
   ansible.builtin.include_tasks: eap-tls_issue-certificate.yaml
   when:
-    - radius_reachable.unreachable is not defined or not radius_reachable.unreachable
+    - radius_reachable.stdout is defined and radius_reachable.stdout=="reachable"
+    - not run_in_installer|default(false)|bool
     - |
       ( not cert_client_active.stat.exists ) or
       (cert_serial.stdout | replace('serial=','') | int(base=16) ) in ( radius_crl.revoked_certificates | map(attribute='serial_number') | list ) or
diff --git a/roles/lmn_wlan/tasks/eap-tls_issue-certificate.yaml b/roles/lmn_wlan/tasks/eap-tls_issue-certificate.yaml
index a3258df..9e897bb 100644
--- a/roles/lmn_wlan/tasks/eap-tls_issue-certificate.yaml
+++ b/roles/lmn_wlan/tasks/eap-tls_issue-certificate.yaml
@@ -105,6 +105,7 @@
   ansible.builtin.systemd:
     name: iwd.service
     enabled: false
+  failed_when: false
 
 - name: Remove deprecated NetworkManager config
   ansible.builtin.blockinfile:
diff --git a/roles/lmn_wlan/tasks/main.yaml b/roles/lmn_wlan/tasks/main.yaml
index 1fb7ec2..d5adcea 100644
--- a/roles/lmn_wlan/tasks/main.yaml
+++ b/roles/lmn_wlan/tasks/main.yaml
@@ -3,7 +3,6 @@
 - name: Install packages related to wifi
   ansible.builtin.apt:
     name:
-      - systemd-resolved
       - firmware-realtek # for our wifi sticks
 
 - name: Provide service to enable WiFi on boot