Narrow Security Scanner 2000 searches for 260 remote vulnerabilities. Written in perl, tested on Redhat, FreeBSD, and OpenBSD, Slackware, and SuSE.
You can download it from the following link: https://packetstormsecurity.com/files/download/10967/NSS_2000pre3.tar.gz
Source: https://packetstormsecurity.com/files/10967/NSS_2000pre3.tar.gz.html