Ubuntu
sssd package

  1. Eoan (19.10)
  2. Bug #1723350
  3. Comment #48

Comment 48 for bug 1723350

Revision history for this message
Jani Jaakkola (jj-lousa) wrote :

I hit this bug too with Ubuntu 18.04. On boot sssd fails to find AD servers from DNS and then continues to query 127.0.0.1 port 53, which will never answer. The log looks like this:

(Wed Oct 10 13:04:13 2018) [sssd[be[ad.helsinki.fi]]] [resolv_getsrv_send] (0x0100): Trying to resolve SRV record of '_ldap._tcp.helsinki._sites.ad.helsinki.fi'
(Wed Oct 10 13:04:13 2018) [sssd[be[ad.helsinki.fi]]] [resolv_discover_srv_done] (0x0040): SRV query failed [11]: Could not contact DNS servers

which does not help much, since it doesn't mention the non existing DNS server (127.0.0.1) in the logs (you need to run strace to see it).

Restarting sssd makes it go back online.