OpenVPN3 doesn't set back previous DNS after disconnect using systemd-resolved in stub mode

[savely-krasovsky]

OpenVPN3 doesn't set back previous DNS after disconnect using systemd-resolved in stub mode

[dsommers]

Please retest with the latest v22_dev release, which got updated in the AUR packaging today - just to see if this issue is still present in that release.

[dsommers]

Can you please run this command as root?

  # openvpn3-admin init-config

If the output here doesn't look too concerning to you, you can add the --write-config option to store it. Existing settings will not be modified, unless you add the --force argument in addition.

I expect this command to detect systemd-resolved and configure OpenVPN 3 Linux to integrate with it directly instead of modifying /etc/resolv.conf. That's required for the --dns-scope setting to work.

Before starting a new VPN session, please ensure that openvpn3-service-netcfg is stopped (a simple kill -INT is enough). That's needed for the network config service to pick up this configuration change.

[savely-krasovsky]

Unforturnately I have exactly the same problem: in stub mode after disconnecting from VPN I still have corporate DNS and domains set which leads to internet basically not working. sudo systemctl restart systemd-resolved.service helps to fix the system.

Version:

$ openvpn3 version
openvpn3-linux v22:dev (openvpn3)
OpenVPN core 3.git:HEAD:03236ed7 linux x86_64 64-bit
Copyright (C) 2012-2022 OpenVPN Inc. All rights reserved.

[savely-krasovsky]

In foreign mode corporate network works, but OpenVPN3 sets only one DNS server (but we are using two), leaves for some reason my home DNS server, overall I would say it behaves the same:

$ resolvectl 
Global
           Protocols: +LLMNR +mDNS -DNSOverTLS DNSSEC=no/unsupported
    resolv.conf mode: foreign
  Current DNS Server: 10.25.1.3
         DNS Servers: 10.25.1.3 192.168.88.1
Fallback DNS Servers: 1.1.1.1#cloudflare-dns.com 9.9.9.9#dns.quad9.net 8.8.8.8#dns.google 2606:4700:4700::1111#cloudflare-dns.com
                      2620:fe::9#dns.quad9.net 2001:4860:4860::8888#dns.google
          DNS Domain: EXAMPLE example.org example.com

I need to admit that this is completely new PC which I setup from scratch using arch-install. So basically I retest everything with new, clean OS.