Nmap is a tool that is commonly used by hackers to discover information about a target network. Network technicians also use Nmap to troubleshoot and document their network. The tool produces ...

(With -T1 it's 217sec). So -T5 helps but it's still very slow. An online port scanner like grc.com can find a port over the internet faster. I was hoping it could do ...

When you really need to know what's going on with your network, give one of these free monitors a try. Monitoring your network can be a real pain. First and foremost, what tool should you use?