Internet connection and DNS routing are broken from WSL2 instances, when some VPNs are active.
The root cause seems to be that WSL2 and the VPN use the same IP address block, and the VPN routing clobbers WSL2's network routing.
This problem is tracked in multiple microsoft/WSL issues including, but not limited to:
WSL 2 uses a Hyper-V Virtual Network adapter. Network connectivity works without any issue when a VPN is not in use. However when a Cisco AnyConnect VPN session is established Firewall Rules and Routes are added which breaks connectivity within the WSL 2 VM. This issue is tracked WSL/issues/4277
Below outline steps to automatically configure the Interface metric on VPN connect and update DNS settings (/etc/resolv.conf) on connect/disconnect.
| <# | |
| Prerequisites: PowerShell v5.1 and above (verified; may also work in earlier versions) | |
| License: MIT | |
| Author: Michael Klement <[email protected]> | |
| DOWNLOAD and DEFINITION OF THE FUNCTION: | |
| irm https://gist.github.com/mklement0/7f2f1e13ac9c2afaf0a0906d08b392d1/raw/Debug-String.ps1 | iex |
| function Get-TaskStartDate { | |
| <# | |
| .SYNOPSIS | |
| Get a start date from a string expression. | |
| .DESCRIPTION | |
| Finds the start date from a string expression. | |
| .EXAMPLE | |
| Get-TaskStartDate -Day '1st Monday' |
| Loop | Return | Continue | Break |
|---|---|---|---|
| Normal Expectation | NextItem | NextItem | ExitLoop |
| .foreach{} | NextItem | ExitLoop | ExitLoop |
| foreach ($y in $x) | ExitLoop | NextItem | ExitLoop |
| for ($i;$i -lt 5;$i++) | ExitLoop | NextItem | ExitLoop |
| Foreach-Object -InputObject @() | NextItem | NextItem | NextItem |
| Switch | ExitLoop | ExitLoop | ExitLoop |
| While | ExitLoop | NextItem | ExitLoop |
| # Source: https://dev.to/ganesshkumar/pi-hole-in-azure-container-instances-4abf | |
| # Download Azure CLI optionally | |
| #Invoke-WebRequest -Uri https://aka.ms/installazurecliwindows -OutFile .\AzureCLI.msi; Start-Process msiexec.exe -Wait -ArgumentList '/I AzureCLI.msi /quiet'; rm .\AzureCLI.msi | |
| cd $PSScriptRoot | |
| $subscriptionId = "1231321332144" # shown after logging in with 'az login' | |
| $rgName = "rg-pi-hole" |
| Param | |
| ( | |
| [string] $SourceFolder = "C:\SSRS\My-Reports", | |
| [string] $TargetReportServerUri = "http://localhost:8081/ReportServer", | |
| [PSCredential] $Credential, | |
| [switch] $CustomAuthentication, | |
| [string] $ApiVersion, | |
| [string] $TargetFolder = "/My-Reports/Sample-Reports", | |
| [switch] $Recursive, | |
| [string] $OverrideDataSourcePathForAll, #= "/My-Reports/Data Sources/ProdDS", |
| function Get-CommandParameter { | |
| param ( | |
| [Parameter(Mandatory = $true)] | |
| [String]$Command, | |
| [Switch]$GetDefaultValues | |
| ) | |
| $defaultParams = @( | |
| [System.Management.Automation.Internal.CommonParameters].GetProperties().Name |
| <# | |
| Prerequisites: PowerShell v5.1 and above (verified; may also work in earlier versions) | |
| License: MIT | |
| Author: Michael Klement <[email protected]> | |
| DOWNLOAD and DEFINITION OF THE FUNCTION: | |
| irm https://gist.github.com/mklement0/9e1f13978620b09ab2d15da5535d1b27/raw/Time-Command.ps1 | iex |
| AA | |
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| Aachen | |
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| Aachenerinnen | |
| Aachenern | |
| Aacheners | |
| Aachens |