<html><head><style type='text/css'>p { margin: 0; }</style></head><body><div style='font-family: Arial; font-size: 12pt; color: #000000'>Is there a way that Nagios can monitor open ports, even if there isn't anything listening on the destination? I'd like to monitor my open ports on my firewall JUST to make sure they're open. I would just specify the port with the normal Nagios command and point it at my public IP address, but obviously, the check will fail unless something is listening on the other end. Basically I want to port scan specific ports. Any ideas?<br></div></body></html>