Narrow Security Scanner is a perl script which checks for 168 remote vulnerabilities. Tested on Red Hat (4.2, 5.0, 6.0), FreeBSD 3.0 & OpenBSD 2.5.
You can download it from the following link: https://packetstormsecurity.com/files/download/11555/NSS_23.tar.gz
Source: https://packetstormsecurity.com/files/11555/NSS_23.tar.gz.html