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[mailto:email@example.com] On Behalf Of Stuart Bailey
Sent: Wednesday, August 11, 2010 5:28 AM
Subject: [Samba] Samba idmap against ad
I have a samba server (old - running FC6, samba 3.0.24-11.fc6) that
authenticates against AD. This is all configured and has been working
until this week.
A new user has been added to AD, but cannot access the samba drives. All
users can still access samba as normal.
net ads testjoin reports OK.
wbinfo -a newuser%pass and wbinfo -K newuser%pass both succeed. wbinfo
newuser reports all the user group memberships from AD.
wbinfo -p is OK
wbinfo -i newuser reports that no information on that user can be found.
wbinfo -n newuser returns the SID, and wbinfo -s SID returns the
However, wbinfo -S SID fails.
I found a thread that suggests a corrupted idmap cache file. If I delete
file, and restart winbind, the file is re-created, but contains no SID
I've also noticed that the winbindd_idmap.tdb file has an old time stamp
winbindd_cache.tdb has today's date.
I tried setting:
winbind cache time = 3600
idmap cache time = 3600
but no improvement.
Also, this is affecting both FC6 servers we have, both with the same
config has not changed, and the servers have not been rebooted / power
etc. The problem only affects new AD user accounts.
Any sugguestions as to where I should look next?
Sounds like you hit a limit somewhere. What is your user and group
mapping range? Have you run out of space in there?
idmap uid = 100000-200000
idmap gid = 100000-200000
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