Lynis

Lynis is a security auditing tool for Unix and Linux based systems. It performs in-depth security scans, with almost no configuration.

HOWTO: INSTALL:

• Lynis does not need installation just extraction to a folder and is then run from there.
• Visit the website and confirm the current version before proceeding and modify the information below to match.

sudo wget https://downloads.cisofy.com/lynis/lynis-3.0.5.tar.gz
sudo tar -xvf /path/to/lynis-3.0.5.tar.gz -C /usr/local/

HOWTO: UPDATE:

cd /usr/local/lynis
sudo ./lynis update info # Show update details
sudo ./lynis update release # Update Lynis release

INFO: PARAMETERS:

• --checkall or -c : Start the scan.
• --check-update : Checks for Lynis update.
• --cronjob : Runs Lynis as cronjob (includes -c -Q).
• --help or -h : Shows valid parameters
• --quick or -Q : Don’t wait for user input, except on errors
• --version or -V : Shows Lynis version.

Running Lynis without any parameters with generate an error:

sudo /usr/local/lynis./lynis

 Error: No scanning mode specified!
 More scan options are available. See man page and online documentation for details

To run a full system scan run the following:

sudo ./lynis audit system -Q

All the information is logged at:

/var/log/lynis.log

Thanks to Techmint.