how can i extend freebsd logging capabilities

hello guys,

i have a freebsd server, with multiple shell users on it, the system is mounted with nosuid/noexec, so users are not executing anything but what i want them to. now, the server keeps on crashing once in 10 15 days, and i don't know why, this  issue has spanned over 3 replaced systems, and we even changed the hardware specs, and keeps on happening.

i think it has to do something with the users, but i can't figure out what. is there any aditional logging that i could do so that i could see if maybe the users are causing the crash, like, logging the shell commands that they do, and have something that would output relevant info in case the server crashes?
rares_dumitrescuAsked:
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omarfaridCommented:
see if you can enable process / user accounting / auditing on your system
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martino87rCommented:
Usually each service allow you to setup a different level of logging details. As far as i know, you can use the debug option in most services as well and check the very, very extensive logs.
For more details, decide what services are more likely to crash your machine and then check how to increase the logging verbosity and/or details and investigate the problem.

For example samba log details are configured in the samba.conf
log level = 1 or more

samba specific infos
http://oreilly.com/catalog/samba/chapter/book/ch09_01.html
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Kamran ArshadIT AssociateCommented:
Hi,

What application is running on these servers? What do the standard system logs say?
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