Public bug reported:
On Cosmic I was testing some VPN setups. I created a PPTP VPN connection to my
server.
Everything connected and worked as it should.
When I disconnect the VPN, DNS resolution stops working.
Looking at "systemd-resolve --status" shows that the correct DNS server
is listed for the interface when the connection is torn down, and I can
ping it. Doing a nslookup setting the server to the IP address shown in
--status shows that DNS resolution is working correctly.
resolv.conf says nameserver 127.0.0.53
Restart resolved makes things work again.
(Also, restarting Network Manager makes it work again.)
Trying to ping a hostname from the cli when in the broken state yields
zero output from resolved logs when in debug mode. Almost like it's not
even hitting resolved, so this bug could very well be somewhere else.
I've checked, and I can ping 127.0.0.1 and the default routes look OK,
although there is a route to the VPN server left over.
I'm all out of ideas. Any ideas?
** Affects: systemd (Ubuntu)
Importance: Undecided
Status: New
** Attachment added: "When the VPN is up"
https://bugs.launchpad.net/bugs/1797415/+attachment/5200103/+files/vpn_up.log
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1797415
Title:
DNS stops working when disconnecting PPTP VPN on desktop
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1797415/+subscriptions
--
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
