[Samba] second dc not working properly
Jason Keltz
jas at eecs.yorku.ca
Tue Dec 8 21:09:47 UTC 2020
I'm running Samba 4.11.16 on CentOS 7 and not having much luck with
failover to a second domain controller. I could *really* use some help.
I know my Samba config is fine. I know that adding the second domain
controler was fine. Replication is working perfectly. No errors. If
I stop the DC processes on either server, Windows clients appear to
failover perfectly fine.
The problem seems to affect my Linux clients (CentOS 7) running winbind.
Let's say a CentOS 7 client X is connected to dc2, and I stop the DC
processes on dc2.... The odd time, the client will connect to dc1
almost right away, and everything just works the way it should always work.
However, most of the time, I stop the DC processes on dc2, the client
will connect to dc1, I can even do a "wbinfo -u" or "wbinfo -g", but
"whoami" reveals "user doesn't exist". Somewhere between 20-50 minutes
later, it just "magically" works. The timing doesn't seem consistent.
Even a reboot doesn't fix things when it's in this state.
I've tried to follow the Samba logs, but I really can't figure out
what's up. Andrew? Jeremy? Anyone?
I don't think this can be just my system. I suspect there's a lot of
users out there running multiple DCs with a similar setup to me,
believing that it's all working, and maybe, because there hasn't been a
failure, everything works great, but who knows what will happen when
there's actually a failure.
Jason.
More information about the samba
mailing list