Is your linux box secure? Have you changed the default settings from the install? is SSH remote root access open? Is your firewall configured? Lynis is a great tool to show you what is open on your computer, what has default settings applied, and shows you what needs a fixn’. This software provides a quick but thorough scan of your box. You still have to do the work to harden you computer, but at least you have a very good idea of what needs to be fixed.
You can install the software through your package manager, or download from their website http://www.rootkit.nl/projects/lynis.html .
Lynis is an auditing tool for Unix (specialists). It scans the system and available software, to detect security issues. Beside security related information it will also scan for general system information, installed packages and configuration mistakes.
This software aims in assisting automated auditing, software patch management, vulnerability and malware scanning of Unix based systems. It can be run without prior installation, so inclusion on read only storage is no problem (USB stick, cd/dvd).
Lynis assists auditors in performing Basel II, GLBA, HIPAA, PCI DSS and SOX (Sarbanes-Oxley) compliance audits.
What is Lynis NOT:
– Not a hardening tool: Lynis does not fix things automatically, it reports only (and makes suggestions).
Security specialists, penetration testers, system auditors, system/network managers.
Examples of audit tests:
– Available authentication methods
– Expired SSL certificates
– Outdated software
– User accounts without password
– Incorrect file permissions
– Firewall auditing
There is a new version of Lynis out now 1.2.8 – Latest release