KT - Command to check the running port of the linux

[KahouTong]

To check the running port in linux, one of the example command is using netstat

most common netstat command used:

To find all port listening: netstat -tulp (OR -t -u -l -p)

To check specific port: (use grep command on selected port): netstat -tupl| grep ':portno'

Output: For find all port listening:

For specific port:

Output keyword definition for active internet connection:

Reference and more details: https://manpages.ubuntu.com/manpages/hirsute/en/man8/netstat.8.html

[KahouTong]

the reference link above only works by copying and paste in new tab.

[KahouTong]

Extra information about the Send-Q and Recv-Q:

https://stackoverflow.com/questions/36466744/use-of-recv-q-and-send-q#:~:text=If%20you%20have%20this%20stuck,between%20them%2C%20are%20doing%20OK.