an ordered list of ports, or a sequential range of ports. PortQry.exe reports the status of a TCP/IP port in one of the following three ways: What PortQry lacks in remote scanning features it ...

The TCP/IP protocol, which underlies everything that we do on the internet, was designed when robustness rather than security was the priority. But while it means that traffic always arrives at ...

Also called "port mapping," port forwarding is directing traffic from the outside world to the appropriate server inside a local TCP/IP network. Internet services are identified by a standard port ...

Unfortunately, TCP/IP was conceived to send and receive data reliably, not to secure it. That's the job of the applications listening and sending on specific ports. If they don't make an effort to ...