Great

This saves so much manual work, it can cut days off of adding replacing an existing monitoring server. It will output a hosts.cfg. Search and replace a few times and setup your groups correctly, and you’re done.

nmap -sS -O -oG 10.34.12.1.txt 10.34.12.1/23
./nbi.pl 10.34.12.1.txt
less hosts.cfg