SAINT

SAINT : Security Administrator’s Integrated Network Tool
SAINT is another commercial vulnerability assessment tool (like Nessus, ISS Internet Scanner, or Retina). It runs on UNIX and used to be free and open source, but is now a commercial product.

Popularity: 16%

Related posts:

1. Nessus
2. N-Stealth
3. Tripwire
4. ISS Internet Scanner
5. Snort