How can I kill TCP port 16969 in Bash?

Question

I have an application which uses TCP port 16969. It sometimes requires a quick software kernel reboot on the fly. But if I launch it too fast, I am locked with

Answer 1

I often get this problem using JBoss in Netbeans...

My solution :

In a terminal type :

 sudo netstat -lnp | grep 8080  

Then it display something like:

 tcp6       0      0 :::8080       :::*        LISTEN      1722/java

Then use:

 kill 1722  //replace 1722 by the PID you found.

Hope it will help!

Answer 2

Have you tried using tcpkill?

example:

tcpkill -i eth0 port 21

Answer 3

fuser -k 16969/tcp 

can free that port. This is a useful command that can be used to close ports, whichever it is.

Answer 4

I think that:

lsof -i tcp:22 | grep LISTEN | awk '{print $2}' | xargs kill

Should do the trick.

To double check what commands it wants to run before letting it loose add an echo before the kill like this:

lsof -i tcp:22 | grep LISTEN | awk '{print $2}' | xargs echo kill

It'll then list the PIDs that it would ordinarily kill