Hi. I'm new to Ubuntu Mate and I am not able to connect to internet anymore ( with any browser), probably caused by Proton VPN uninstall. My browsers can't connect ( DNS Probe Possible error) So I re-installed Proton, but it didn't solved the problem. I've succeeded to connect to the web by changing my name server address to 8.8.8.8 in the file: etc\resolv.conf - except that Ubuntu rewrote that modification, Now the etc/resolv.conf does not exist anymore and has been renamed: resolv.conf.d and there is no nameserver address inside that folder; Only 3 files: Base, Head and Tail - no place to input nameserver 8.8.8.8 I can't either find no other place to input that nameserver address on Ubuntu Mate, The only browser that can connect is Thor (VPN). I'm on wired internet.
Does someone has a permanent solution for that annoying problem?
Hi jaybo! Thank you for your answer. Unfortunately these two commands didn't do anything. I found that if I change my iPv4 address to 8.8.8.8 , that could solve the DNS problem. Does someone knows how to do that on Ubuntu Mate 22.04?
I suggest that you check the following discussion here in the Ubuntu MATE Community discussion forums, started by @alpinejohn a few months ago (on 22 January 2023):
... and, specifically, read the following answer in that topic posted by @tkn (thom) that I think will solve your issue of setting up a network connection in Ubuntu MATE to use a specific DNS Server IP address:
The linux version of the Proton VPN app has an annoying habit of sometimes leaving a connection active even after you quit the app. I think it's plausible that you have a connection remaining even after uninstalling the app. It's worth looking into.
Try running this command and examine the output:
nmcli connection
Here's the sample output from my system (some connections redacted):
Note that Proton VPN installs three connections when it's active. The "pvpn-ipv6leak-protection" seems to be the most tenacious, often remaining when the app has been exited.
If you see any of these connections persisting after quitting or uninstalling the app, use nmcli to delete it. For example:
Hello Community,I don't know if Abraxus resolved his problem, but I've got protonVPN since it began and the same problem appears when VPN is still running when the session is disconnecting. thus the only connection runs with DNS 127.0.0.54. I had to correct by rewriting the /etc/resolv.conf with box DNS (ex : 192.168.1.1).
Finally, after research, the only solution is to install resolvconf and to write some good DNS in /etc/resolvconf/resolv.conf.d/base :
<` Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8) # DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN # 127.0.0.53 is the systemd-resolved stub resolver. # run "systemd-resolve --status" to see details about the actual nameservers.
nameserver 127.0.0.1
nameserver 192.168.1.1
nameserver 127.0.0.53 '<
But, for security, disconnect the VPN before closing the session.
hoping to have helped. Sorry for my English, I'm french and learned English 55 years ago.
