There isn't an easy and automated way to do this from a monitoring environment. Perhaps the best method is regular...
By submitting your email address, you agree to receive emails regarding relevant topic offers from TechTarget and its partners. You can withdraw your consent at any time. Contact TechTarget at 275 Grove Street, Newton, MA.
Nmap or Nessus scans of your hosts (though this has some risks and you will have to ensure that you set up both to scan in a non-intrusive manner) with the output compared a pre-defined baseline. Both tools will also generate a lot of network 'chatter' and if you have an IDS/IPS installed, then this will potentially look like an attack and generate false positives.
In the event your host may have been compromised there is also hardscan, a netstat replacement for scanning local ports, attempting a handshake and outputting the results. This can often help in identifying a host infected with a rootkit that has compromised ports open.
Dig Deeper on Linux security tools
Related Q&A from James Turnbull
A user wants to implement OSSEC on a Windows server because he has no server side Linux operating system.continue reading
Solaris 10 Trusted Extensions and SELinux are best suited to different system requirements and administrator skill sets. Our security expert explains...continue reading
Configuring spam filters Spamassassin and dspam together in the email server Postfix is easy with the resources listed by our security expert.continue reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.