Killing a CPU process

Table of Contents

In Windows machines

If you need to kill a process manually on Windows it’s actually pretty easy. First, fire up a command prompt and type the following command: netstat -a -o -n

To kill the process we need to find the PID of the process in question. I just run down the list by port until I find port 8080 and here you will see the process id was 28344.

Run this from command prompt - not from git bash. Finally, with the PID we can run the following command to kill the process: taskkill /F /PID 28344

In Linux

Searching for a process by name

Sometimes, we run into issues like process already running. In those scenarios, we will have to search for the process by name and kill it.

e.g.

ps -efl | grep tomcat

One step process

ps aux | grep tomcat | awk '{print $2}' | xargs kill -9

Using fuser

  1. This command will print you PID of process bound on that port : fuser 8080/tcp
  2. And this command will kill that process : fuser -k 8080/tcp

Using lsof

List who is using the port

sudo lsof -i -P -n | grep <port number>

And kill the process.

Killing using PID

sudo kill <process id>

kill SIGNAL PID

e.g. kill -9 3827

In MacOS

To identify the PID for a port number

lsof -i :3000
lsof -i tcp:8020

To kill the process using the PID

kill -9 <PID>

Issue with port 80 being blocked

Error using port 80. Do you have another process running on port 80 already?

  • If anyone is running into issues with port 80 blocked while setting up their new slice, I have a workaround.

  • I have an open ticket with VDE support to see about getting the Citrix Virtual Desktop Service changed to a different port.

  • I will let you know when they have verified this fix or have a different workaround.

  • I have been able to successfully reboot my slice several times and log back into the Citrix Workspace with no issue.

  • Verify it is the Citrix Desktop Service running over port 80 by using the following command (as Admin):

    netsh http show servicestate | findstr HTTP

  • Run the following command to change its port (you should run netstat -aon to make sure the number you choose is free).

  • Open Services and stop “Citrix Desktop Services”

  • Launch command prompt as administrator

    cd C:\Program Files\Citrix\Virtual Desktop Agent\Agent Configuration\
Agentconfig.exe /portnumber:4150

  • Open Services and start “Citrix Desktop Services” again.

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