On Mon, Sep 27, 2021 at 02:35:34AM -0700, mgla...@gmail.com wrote: > > 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. >
There is something wrong, but there is nothing in the detail you have provided that might explain it. So: Do you have any custom firewall rules set on vm1? (qvm-firewall vm1) Can you ping the firewall from vm1, by IP address? Can you access a host on the internet by IP address?(e.g https://188.8.131.52) If you create a new qube from the template, does networking work as expected? If you change templates on vm1, does networking work? -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to qubes-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/YVHABAtgLCNk14le%40thirdeyesecurity.org.