TcpKiller

A GUI application to kill a process which is listening on a tcp port.

Main Features:

• Shows a list of processes, and tcp ports they are listening to
• The list can by filtered by port number
• You can select a process, and terminate it

There are many tools that implement this functionality. This tool will additionally:

• Resolve the application name of java processes (if jps is available)
• For IANA registered ports you can hover over the port number, and it will show additional information
• On windows, will show the names of services running as children of svchost.exe

Demonstration

Installation

Download the installer for your platform from the releases page.

Requirements

The requirements depend on the operation system used.

OS X

The following command line tools are required:

• ps
• kill
• lsof

Successfully tested on: 10.14.6 (18G2022)

Windows

The following command line tools are required:

• tasklist
• taskkill
• netstat

Successfully tested on: Windows 10

Caveats

On Windows some services are started by the operation system under the system process which cannot be terminated by TcpKiller.

TcpKiller may still help you find the culprit:

1. Hover over the port number. If it's a registered IANA port, it will tell you its name which could help you find out which service is listening on the port.
2. If it's a non IANA registered port, it could be http.sys, which is the windows integrated http server infrastructure. Run netsh http show servicestate. If there is a process listening through http.sys, you should be able to see it under 'request queue'.

Attribution

I would like to thank Freepik for providing the logo for this project.