I ran tcpdump 'host ubuntu20 and port domain' on my router and looked at all the other NXDOMAIN at boot time besides this one.
1. PTR request on the IPv4 address of my virbr0 interface. Gone after uninstalling a couple libvirt-* packages 2. PTR request on ONE of my IPv6 addresses. It's not obvious to me which address gets picked for that PTR query. I disabled IPv6 ULA on my router and the PTR request just moved to a different address. 3. SOA local. ?? I also found that NetworkManager needs to be told "connectivity-check.ubuntu.com has no AAAA record" about 12 times during boot, that seems a bit excessive? (this is not NXDOMAIN) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1880258 Title: Add trailing dot to make connectivity-check.ubuntu.com. absolute and reduce NXDOMAIN warning noise To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1880258/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
