Phyton script to accomplish this task:
Given a network in CIDR format as input (ex. [login to view URL])
Print only the inactive hosts who has an FQDN associated to it.
1. They must not reply to ping
2. They must have an FQDN resolvable via nslookup
Example of result:
[login to view URL] [login to view URL]
[login to view URL] [login to view URL]
[login to view URL] [login to view URL]