Ubuntu
sssd package

  1. Bug #1893438
  2. Comment #15

Comment 15 for bug 1893438

Revision history for this message
Andreas Hasenack (ahasenack) wrote :

> On Ubuntu I changed the configuration of the resolver in /etc/resolv.conf
> to use the DNS directly instead of the local systemd-resolved from
> "nameserver 127.0.0.53" to "nameserver 10.148.231.1" and it fixes the issue.

Could you also check what the status of the systemd resolver was?

sudo systemd-resolve --status

In particular which DNS servers it had available and was using for each network interface, and globally.

FWIW, since a few ubuntu releases I've seen a 5s delay in some name resolutions that happen for the first time: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1765477

So maybe sssd was doing the DNS query to obtain the FQDN of the host, but it took too long and it gave up? Hence fedora's suggestion to set `hostname` to the fqdn, instead of relying on `hostname -f`, which does a DNS query?