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Create a VPN Connection and change its settings with PowerShell. Windows 10

Create a VPN Connection and change its settings with PowerShell. Windows 10

I had to deploy a VPN connection in an environment which looks like this:

  • Domain Controller is hosted on a Virtual Machine in Azure
  • Using an Azure Virtual Network Gateway
  • Point-to-site configuration uses RADIUS authentication.

I accomplished this using the Windows administrator’s best friend, PowerShell.

The prerequisites for these are:

  • Get the VPN server IP/DNS
  • Make sure computers are using PowerShell 3.0

The Powershell script to deploy a VPN connection would look like this:

#Set Variables for the VPN connection
$VPNconnectionName = "New VPN"
$SRVaddress = "auzrevpn.azure.com"
$dnssuf = "contoso.com"

#Create the VPN connection
Add-VpnConnection -Name $VPNconnectionName -ServerAddress $SRVaddress -TunnelType Sstp -AuthenticationMethod Eap -EncryptionLevel Required -AllUserConnection -SplitTunneling -IdleDisconnectSeconds 900 -DnsSuffix $dnssuf

#Get the content from the phone book
$contain = Get-Content -Path "$env:ProgramData\Microsoft\Network\Connections\Pbk\rasphone.pbk" -Raw

#Change the connection phone book content to add the internal DNS entries  
if ($contain.Contains("IpDnsAddress=0.0.0.0")){
($contain) -replace 'IpDnsAddress=0.0.0.0','IpDnsAddress=192.168.1.4' -replace 'IpDns2Address=0.0.0.0','IpDns2Address=192.168.1.10'-replace 'IpNameAssign=1','IpNameAssign=2'| Set-Content "$env:ProgramData\Microsoft\Network\Connections\Pbk\rasphone.pbk"
}