How can I audit users and access attempts to SSH on my server?

Posted by RadiantHex on Ask Ubuntu See other posts from Ask Ubuntu or by RadiantHex
Published on 2010-09-08T10:29:08Z Indexed on 2012/08/28 21:52 UTC
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Filed under:

server

|

security

|

ssh

I've had a few security problems with a server of mine, a few SSH users have been setting up fires aka giving problems.

I would like to:

Track user logins and logouts
Track activity of these SSH, in order to discover any malicious activity
Prevent users from deleting logs

I am not much of a sys admin and I am quite inexperienced in this matter, so any kind of advice would be very welcome and very helpful. :)

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