Among all the free softwares available for auditing the security of my system, here is Lynis I discovered recently.
Lynis can be installed with apt-get :
root@localhost:~# apt-get install lynis
A more up-to-date version of this software can be found here :
To run it :
root@localhost:~# cd /opt/ && tar xvf lynis-1.2.9.tar.gz
Two main options :
–check-update : check for updates
–check-all (-c) : check system
Checking is quite quick if you use the lastest downloaded version.
On the other hand, the Lynis version from its Debian package (v1.27) hangs when it comes to look after SSH Support.
I really appreciate the Warnings and Suggestions sections.
More information on Lynis :