diff --git a/DFS replication/dfsreplication.ps1 b/DFS replication/dfsreplication.ps1
new file mode 100644
index 0000000..187d7f1
--- /dev/null
+++ b/DFS replication/dfsreplication.ps1	
@@ -0,0 +1,86 @@
+# Check if DFSN module is installed
+Get-Module -ListAvailable -Name DFSN
+
+# Check if DFSR module is installed
+Get-Module -ListAvailable -Name DFSR
+
+# If not installed, install the modules (requires admin privileges)
+Add-WindowsFeature -Name RSAT-DFS-Mgmt-Con
+
+
+# Create a new replication group
+New-DfsReplicationGroup -GroupName "FileServerGroup" -Description "Replication between SRV1 and DC1"
+
+
+# Add both servers to the replication group
+Add-DfsrMember -GroupName "FileServerGroup" -ComputerName "SRV1"
+Add-DfsrMember -GroupName "FileServerGroup" -ComputerName "DC1"
+
+
+# Create replication folders for each shared directory
+$folders = @("finance", "sales", "hr", "it", "consultants")
+
+foreach ($folder in $folders) {
+    # Create the replicated folder
+    New-DfsReplicatedFolder -GroupName "FileServerGroup" `
+        -FolderName $folder `
+        -DfsnPath "\\rohanit\files\$folder"
+
+    # Set up replication members for the folder
+    Set-DfsrMembership -GroupName "FileServerGroup" `
+        -FolderName $folder `
+        -ContentPath "c:\shares\$folder" `
+        -ComputerName "SRV1" `
+        -PrimaryMember $true
+
+    Set-DfsrMembership -GroupName "FileServerGroup" `
+        -FolderName $folder `
+        -ContentPath "c:\dfsroots\$folder" `
+        -ComputerName "DC1" `
+        -PrimaryMember $false
+}
+
+
+# Set up bidirectional replication between servers
+Add-DfsrConnection -GroupName "FileServerGroup" `
+    -SourceComputerName "SRV1" `
+    -DestinationComputerName "DC1"
+
+
+    # Check replication group status
+Get-DfsReplicationGroup -GroupName "FileServerGroup" | Format-List
+
+# Check connection status
+Get-DfsrConnection -GroupName "FileServerGroup"
+
+# Check folder configuration
+Get-DfsReplicatedFolder -GroupName "FileServerGroup"
+
+
+
+# View replication backlog
+Get-DfsrBacklog -GroupName "FileServerGroup" `
+    -SourceComputerName "SRV1" `
+    -DestinationComputerName "DC1" `
+    -FolderName "finance"
+
+# Check replication health
+Write-DfsrHealth -SourceComputerName "SRV1" -DestinationComputerName "DC1"
+
+
+
+# Reset replication if needed
+Update-DfsrConfigurationFromAD -ComputerName "SRV1"
+Update-DfsrConfigurationFromAD -ComputerName "DC1"
+
+# Check DFS service status
+Get-Service DFSR -ComputerName "SRV1"
+Get-Service DFSR -ComputerName "DC1"
+
+
+
+Get-Help *dfsr*
+Get-Help Add-DfsrConnection -Detailed
+
+
+
diff --git a/DFS replication/dfssetup1.ps1 b/DFS replication/dfssetup1.ps1
new file mode 100644
index 0000000..21675e5
--- /dev/null
+++ b/DFS replication/dfssetup1.ps1	
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+$session = New-PSSession -ComputerName "DC1"
+
+Invoke-Command -Session $session -ScriptBlock {
+    Install-WindowsFeature FS-DFS-Namespace, FS-DFS-Replication -IncludeManagementTools
+}
+
+
+Invoke-Command -Session $session -ScriptBlock {
+    $basePath = "C:\DFSRoots"
+    $folders = @('Finance', 'Sales', 'IT', 'Consultants', 'HR')
+    
+    # Create base directory
+    New-Item -Path $basePath -ItemType Directory -Force
+
+    # Create individual folders
+    foreach ($folder in $folders) {
+        New-Item -Path "$basePath\$folder" -ItemType Directory -Force
+        
+    }
+}
+
+Invoke-Command -Session $session -ScriptBlock {
+    $folders = @('Finance', 'Sales', 'IT', 'Consultants', 'HR')
+    foreach ($folder in $folders) {
+        New-SmbShare -Name $folder -Path "C:\DFSRoots\$folder" -FullAccess "Everyone"
+        # Adjust share permissions according to your security requirements
+    }
+}
+
diff --git a/lectures/dcst1005 b/lectures/dcst1005
new file mode 160000
index 0000000..24ab8d4
--- /dev/null
+++ b/lectures/dcst1005
@@ -0,0 +1 @@
+Subproject commit 24ab8d4c98d63329bed5e55a462b0c6d1ba2776d