/Shell/Bash/Cli check what is listening on port

Cli check what is listening on port

Linux how to see ports in use

# Any of the following
sudo lsof -i -P -n | grep LISTEN
sudo netstat -tulpn | grep LISTEN
sudo lsof -i:22 # see a specific port such as 22
sudo nmap -sTU -O IP-address-Here

Find which service is using port

 netstat -aon | findstr<port_number>  

 tasklist | findstr 9260

Cli check what is listening on port

lsof -i tcp:53 #Check what is listening on port 53
lsof -t -i tcp:53 #Return the process PID listening on port 53

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