[RndTbl] Fix resolv.conf on WSL instantiation...

[Sean Cody]

That last link was helpful... their solution is very similar to the direction I was headed but pulling data from system (interesting approach).
If I get around to porting it I'll pop as gist here or something.

Thanks!

-----Original Message-----
From: Adam Thompson <athompso at athompso.net> 
Sent: June 2, 2020 4:43 PM
To: Continuation of Round Table discussion <roundtable at muug.ca>
Cc: Sean Cody <sean at tinfoilhat.ca>
Subject: Re: [RndTbl] Fix resolv.conf on WSL instantiation...

You're not going to like the official solution: 
https://docs.microsoft.com/en-us/windows/wsl/troubleshooting#bash-loses-network-connectivity-once-connected-to-a-vpn

The various "solutions" are mostly going to be problematic, because apparently it's a bug: 
https://github.com/microsoft/WSL/issues/1908#issuecomment-296283093

However, there's hope: 
https://github.com/microsoft/WSL/issues/3928#issuecomment-488556907

At least it's widely known: 
https://www.sonicwall.com/support/knowledge-base/windows-subsystem-for-linux-wsl-fails-to-use-dns-from-a-vpn-tunnel/190912103759019/

Good luck!

-Adam


On 2020-06-02 16:19, Sean Cody wrote:
> I must be having a rough week or just getting older but I can’t seem 
> to come up with an elegant solution to this problem… Ok… I have WSL on 
> my workstation, when I establish VPN to $work, WSL buggers 
> resolv.conf.
> 
> From:
> nameserver <mine>
> search <$homedomain>
> 
> To:
> nameserver <mine>
> nameserver <$work1>
> nameserver <$work2>
> search <$workdomain>
> 
> I have to manually take line 1 and move it to line 3 for internal 
> resolution to work…  EVERY DAMNED TIME WSL instantiates (while VPN is 
> established).
> This is because $workdomain is blackholed publicly.
> 
> My first thought was a stupid ed script to move line 1 to 3… that 
> didn’t work so well (my ed skills are apparently lacking).
> 
> Ideally the solution would note if there 3 or more nameserver lines, 
> move the lines before ‘nameserver <$work1>’ to one line before the 
> last file.
> I’d pop that into my .bashrc/.profile or similar.
> 
> I couldn’t find how WSL manipulates the file itself otherwise I would 
> have tried to change it…
> 
> Anyone have any ideas there?
> 
> --
> Sean
> 
> 
> 
> 
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