1.) Using nmap (https://nmap.org) scan the ports associated with your VPN setup when it works. 2.) Repeat the scanning when it doesn't work. 3.) Compare results (paste them here if you want or paste ...

Nmap, short for Network Mapper, is a free and open source tool used for vulnerability checking, port scanning and, of course, network mapping. Despite being created back in 1997, Nmap remains the gold ...

(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 ...

The United Kingdom's National Cyber Security Centre (NCSC), the government agency that leads UK's cyber security mission, is releasing NMAP Scripting Engine scripts to help defenders scan for and ...

If SSH is the Swiss Army knife of the system administration world, Nmap is a box of dynamite. It's really easy to misuse dynamite and blow your foot off, but it's also a very powerful tool that can do ...