11.03.2025

Question 1

How to check if any process is running in a particular port ex of port - 2134?

Answer 1

sudo netstat -tulnp | grep 2134

Question 2

How to find if another instance of upf is running?

Answer 2

1. ps -aef | grep upf (System V)
2. ps aux | grep upf (BSD)

Question 3

How to generate a SSH key, to add in gitlab?

Answer 3

ssh-keygen

Question 4

How to list all the currently loaded modules?

Answer 4

lsmod

Question 5

How to kill a PID (which is mostly in the first or second column)?

Answer 5

sudo kill -9 [PID]