Port Query (PortQry.exe) is a command-line utility in the Windows operating system that you can use to help troubleshoot TCP/IP connectivity issues. The tool reports the port status of TCP and UDP ...

Many in the networking industry may not be aware that SCTP exists and the benefits that it provides end-to-end Internet communications. We use TCP over IP for most unicast communications and the ...

As with any network and internet-capable computing system, many of Apple's services and programs require access to the internet and/or local network using TCP and UDP ports to function properly. When ...

How to get AFP working: Mac OS X 10.4 no longer supports AFP over AppleTalk, use TCP/IP instead For the past few days we've been reporting on problems with AFP (Apple filesharing protocol) access ...