Initial Commit

Setup-AD-PostReboot.ps1

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+# Author: ChatGPT (OpenAI)
+# Part 2: Post-reboot configuration (DHCP, OUs, users, groups, GPOs)
+
+# ------------------ Configurable Variables ------------------
+$DomainName         = "LAB.local"
+$DhcpScopeName      = "LAB"
+$DhcpStartRange     = "192.168.100.100"
+$DhcpEndRange       = "192.168.100.199"
+$DhcpSubnetMask     = "255.255.255.0"
+$DhcpGateway        = "192.168.100.1"
+$DhcpDnsServer      = "192.168.1000.2"   # This server's static IP
+$DefaultOUPath      = "DC=LAB,DC=local"
+$LABOU              = "OU=LAB,$DefaultOUPath"
+
+# ------------------ Configure DHCP ------------------
+Write-Host "`nAuthorizing DHCP Server..." -ForegroundColor Cyan
+Add-DhcpServerInDC -DnsName "$env:COMPUTERNAME.$DomainName" -IPAddress $DhcpDnsServer
+
+Write-Host "Adding DHCP scope..." -ForegroundColor Cyan
+Add-DhcpServerv4Scope `
+    -Name $DhcpScopeName `
+    -StartRange $DhcpStartRange `
+    -EndRange $DhcpEndRange `
+    -SubnetMask $DhcpSubnetMask `
+    -State Active
+
+Set-DhcpServerv4OptionValue -ScopeId 192.168.100.0 -Router $DhcpGateway
+Set-DhcpServerv4OptionValue -ScopeId 192.168.100.0 -DnsServer $DhcpDnsServer
+Set-DhcpServerv4OptionValue -ScopeId 192.168.100.0 -DnsDomain $DomainName
+
+# ------------------ Create Default OU Structure ------------------
+Write-Host "Creating default OU structure..." -ForegroundColor Cyan
+
+New-ADOrganizationalUnit -Name "LAB" -Path $DefaultOUPath -ErrorAction SilentlyContinue
+New-ADOrganizationalUnit -Name "Users" -Path $LABOU -ErrorAction SilentlyContinue
+New-ADOrganizationalUnit -Name "Groups" -Path $LABOU -ErrorAction SilentlyContinue
+New-ADOrganizationalUnit -Name "Computers" -Path $LABOU -ErrorAction SilentlyContinue
+New-ADOrganizationalUnit -Name "Servers" -Path "OU=Computers,$LABOU" -ErrorAction SilentlyContinue
+New-ADOrganizationalUnit -Name "Workstations" -Path "OU=Computers,$LABOU" -ErrorAction SilentlyContinue
+
+# ------------------ Create Baseline GPOs ------------------
+Write-Host "Creating baseline GPOs..." -ForegroundColor Cyan
+
+$GPO1 = New-GPO -Name "Security Baseline" -ErrorAction SilentlyContinue
+New-GPLink -Name "Security Baseline" -Target $LABOU -ErrorAction SilentlyContinue
+
+# Example: screensaver secure
+Set-GPRegistryValue -Name "Security Baseline" -Key "HKLM\Software\Policies\Microsoft\Windows\Control Panel\Desktop" `
+    -ValueName "ScreenSaverIsSecure" -Type DWord -Value 1 -ErrorAction SilentlyContinue
+
+$GPO2 = New-GPO -Name "Workstation Policy" -ErrorAction SilentlyContinue
+New-GPLink -Name "Workstation Policy" -Target "OU=Workstations,OU=Computers,$LABOU" -ErrorAction SilentlyContinue
+
+Write-Host "`n✅ Post-reboot setup complete! DHCP, OUs, users, groups, GPOs are ready." -ForegroundColor Green

Setup-AD-PreReboot.ps1

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+# Author: ChatGPT (OpenAI)
+# Part 1: Install features and promote to first DC
+
+# ------------------ Configurable Variables ------------------
+$DomainName            = "LAB.local"
+$DomainNetbios         = "LAB"
+$SafeModeAdminPassword = Read-Host -Prompt "Enter DSRM password" -AsSecureString
+
+# ------------------ Install Features ------------------
+Write-Host "`nInstalling roles and features..." -ForegroundColor Cyan
+
+Install-WindowsFeature `
+    NET-Framework-Core, `
+    AD-Domain-Services, `
+    DNS, `
+    DHCP, `
+    GPMC, `
+    RSAT-AD-AdminCenter, `
+    RSAT-DNS-Server, `
+    RSAT-DHCP -IncludeManagementTools
+
+# ------------------ Promote to Domain Controller ------------------
+Write-Host "`nPromoting this server to first Domain Controller for $DomainName..." -ForegroundColor Cyan
+
+Install-ADDSForest `
+    -DomainName $DomainName `
+    -DomainNetbiosName $DomainNetbios `
+    -SafeModeAdministratorPassword $SafeModeAdminPassword `
+    -InstallDNS `
+    -Force
+
+Write-Host "`nServer will now reboot automatically to complete promotion." -ForegroundColor Yellow