The 'ping' command on most flavors of Unix has a nifty little feature that lets you select which port to ping on. It's handy when troubleshooting network applications. For example, if some wierd app.

A flaw in Windows Firewall may prevent users from seeing all the open network ports on a Windows XP or Windows Server 2003 computer. The flaw manifests itself in the way the security application ...

Printer ports are used to differentiate and separate the printers connected to a computer. Printers are usually assigned a printer port by default – for example, a TCP/IP port for a network printer or ...

What's the difference between managed and unmanaged switches? Ethernet switches, also known as network switches, are boxes that allow you to connect a number of wired devices over a Local Area Network ...