-p [protocol] TCP or UDP or BOTH (default is TCP) -e [endpoint] single port to query (valid range: 1-65535) -r [end point range] range of ports to query (start:end) -o [end point order] range of ports ...
When working with Linux, understanding how TCP ports behave is an important technical skill. TCP ports control how applications communicate over a network and determine which services are accessible ...
Security practitioners for decades have advised people to limit DNS queries against their DNS servers to only use UDP port 53. The reality is that DNS queries can also use TCP port 53 if UDP port 53 ...
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 ...
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