Hi everyone,
I’m looking for some help as to how to diagnose some app-VM networking issues. I have 2 vms, both based on the same template with identical config, but one can reach the internet and the other cannot.
Before upgrading:
2 standalone VMs based on Fedora-30. One with a bunch of dev tools installed, one relatively untouched. I had multiple VMs based on these two templates. I also updated my sys-net and sys-firewall to Fedora-33 at the same time.
Upgrade:
I upgraded to Fedora-33, and realised I could rationalise my VMs, so now every appVM is based off the same Fedora-33 template.
The issue:
Some of my migrated VMs are completely fine, others have no network.
I think it is the VMs that used to be based on my old “untouched” vm that have the issue.
VM1:
No networking at all.
VM2:
Networking is completely fine, everything works as expected.
Both VMs are based on the same Fedora-33 template, with the same (default) sys-firewall Networking, both with the firewall configured to allow all outgoing internet connections
vm1$ ping google.com
ping: google.com: Name or service not known
vm1$ dig google.com
; <<>> DiG 9.11.35-RedHat-9.11.35-1.fc33 <<>> google.com
;; global options: +cmd
;; connection timed out; no servers could be reached
vm1$ resolvectl dns
Global: 10.139.1.1 10.139.1.2
Link 2 (eth0):
vm2$ resolvectl dns
Global: 10.139.1.1 10.139.1.2
Link 2 (eth0):
Link 3 (br-11bfb2cd10e9):
Link 4 (docker0):
Link 5 (br-cf58034d074b):
Link 6 (br-f9686c41a7f5):
So there’s definitely something wrong, but I don’t know enough about Linux/Qubes networking to work out what.
Any pointers gratefully received.