I am using mullvad vpn, and I am connected - see status:
jpc@home:~/mullvad-vpn$ mullvad status -v
Connected to se-got-wg-005 (185.209.199.2:7457/UDP) in Gothenburg, Sweden
Tunnel type: WireGuard
Quantum resistant tunnel: no
Tunnel interface: wg-mullvad
When I exclude a process from mullvad, it works perfectly fine:
jpc@home:~/mullvad-vpn$ mullvad-exclude ping google.com
PING google.com(ord38s31-in-x0e.1e100.net (2607:f8b0:4009:81a::200e)) 56 data bytes
64 bytes from ord38s31-in-x0e.1e100.net (2607:f8b0:4009:81a::200e): icmp_seq=1 ttl=116 time=21.2 ms
64 bytes from ord38s31-in-x0e.1e100.net (2607:f8b0:4009:81a::200e): icmp_seq=2 ttl=116 time=16.6 ms
64 bytes from ord38s31-in-x0e.1e100.net (2607:f8b0:4009:81a::200e): icmp_seq=3 ttl=116 time=16.0 ms
^C
--- google.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 16.028/17.940/21.237/2.340 ms
However running the same command through mullvad fails:
jpc@home:~/mullvad-vpn$ ping google.com
ping: google.com: Temporary failure in name resolution
This recently started happening even though I've been using mullvad successfully for months.
I was able to "fix" the DNS issue by temporarily updating /etc/resolv.conf to use nameserver 8.8.8.8. However this is not ideally, and just led to another problem:
jpc@home:~/mullvad-vpn$ sudo vim /etc/resolv.conf
jpc@home:~/mullvad-vpn$ sudo systemctl restart systemd-resolved.service
jpc@home:~/mullvad-vpn$ ping google.com
PING google.com(arn09s20-in-x0e.1e100.net (2a00:1450:400f:80d::200e)) 56 data bytes
From 2601:401:100:e1a:e80e:4746:2e04:8900 (2601:401:100:e1a:e80e:4746:2e04:8900) icmp_seq=1 Destination unreachable: Port unreachable
From 2601:401:100:e1a:e80e:4746:2e04:8900 (2601:401:100:e1a:e80e:4746:2e04:8900) icmp_seq=2 Destination unreachable: Port unreachable
From 2601:401:100:e1a:e80e:4746:2e04:8900 (2601:401:100:e1a:e80e:4746:2e04:8900) icmp_seq=3 Destination unreachable: Port unreachable
From 2601:401:100:e1a:e80e:4746:2e04:8900 (2601:401:100:e1a:e80e:4746:2e04:8900) icmp_seq=4 Destination unreachable: Port unreachable
^C
--- google.com ping statistics ---
4 packets transmitted, 0 received, +4 errors, 100% packet loss, time 3004ms
Anyone have ideas what's going on? This just started happening in the last couple of days
Edit - more information here (size is too large to add to the body of this): https://paste.jpc.io/snippet/2d8fdc8a-2075-461b-bc97-4755f4f0674e
/etc/resolv.confand output ofresolvectlafter the VPN connection is brought up, preferably with the output ofiptables-saveandnft list ruleset. (Personally I clear the link DNS server of the physical link temporarily withresolvectlwhen I connect to my personal wg server, andrevertthe setting when I disconnect. (wg-quick allows up/down actions)./etc/resolv.conf(which is a symlink) and recreate one that links to/run/systemd/resolve/stub-resolv.conf(or/usr/lib/systemd/resolv.conf, if that doesn't exist). Then preferably just reboot and checkcat /etc/resolv.confandresolvectlagain, before and after bring up the mullvad respectively (and create a paste again with the four outputs). Btw, does your physical link have IPv6 connectivity? And does the Mullvad tunnel offers IPv6 connectivity?/etc/resolv.confsymlink, then restartsystemd-resolvedand the network manager, then perform the checks / dumping I mentioned above (with bringing up mullvad again in between).