I have a Samba server configured as PDC for ~100 computers. It's version 3.0.24 running on Debian Etch (distribution package).

I want to write a tool for user logon/logoff tracking. Because parsing log files is hard job (windows frequently disconnets or connects during user session or etc.) I decide to use smbstatus output which seem to be reliable.

So I run smbstatus binary every 10 seconds, parse the output and all is fine. But sometimes in the smbstatus output is show computer which is several hours switched off. At the next run (after 10s) this record is not presented. Sometimes this "ghost" record is shown for ~30 seconds.

Example:

11:10:21 - MACHINE1/USER1 - is in smbstatus
... constantly is in smbstatus
12:14:11 - MACHINE1/USER1 - is NOT in smbstatus
12:15:21 - MACHINE1/USER2 - is in smbstatus
...
12:45:31 - MACHINE1/USER2 - is NOT in smbstatus
Now the MACHINE1 is switched off.
18:16:21 - MACHINE1/USER1 - is in smbstatus !! (and the MACHINE1 is switched off several hours!)
18:16:31 - MACHINE1/USER1 - is NOT in smbstatus

Sometimes (cca twice a day) smbstatus return error output like this:
tdb(/var/run/samba/sessionid.tdb): rec_read bad magic 0xd9fee666 at offset=116988

It's a bug or a feature and smbstatus is only informative? It's solved in some newer version? Can you tell me about better source for connected user status?

Thanks.
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