A number of weeks ago, I provided and described a script that uses nmap to quickly scan a system or subnet for activity on a particular port. Useful for detecting, say, web servers or Oracle ...

10 ways to check ports in Linux to help troubleshoot systems Your email has been sent System and network troubleshooting often involves checking and obtaining information about ports to ensure ...

If you have ever needed to survey a large group of systems to find out which of them supported some particular service, such as ftp, telnet, ssh or some other particular application, you have probably ...