l...@gnu.org (Ludovic Courtès) writes: > Maxim Cournoyer <maxim.courno...@gmail.com> skribis: > >> I've noticed the same (lack of DNS resolution) following a reboot for >> some minutes and was also wondering what was causing this. I'm using >> wicd as part of the %desktop-services, so that specific problem is >> probably not related to NetworkManager. > > Our default nscd config caches lookup failures for 20 seconds by default > (see ‘nscd-cache’ in the manual.) So if you look up a host before > networking is up, and it fails, then there’s a window during which > lookup will keep failing. > > I don’t know if that explains what you’re seeing.
It can take much longer than 20 s upon a reboot to have the name resolution working again (more than 5 minutes), so that doesn't seem to explain it by itself.