*** This bug is a duplicate of bug 1778946 ***
https://bugs.launchpad.net/bugs/1778946
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: systemd (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1797415
Title:
DNS stops working when disconnecting PPTP VPN on desktop
Status in systemd package in Ubuntu:
Confirmed
Bug description:
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?
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