check what is running on port code example

Example 1: find out process using port windows

netstat -ano | findstr 8080

Example 2: linux query port use by pid

$ sudo netstat -nlp | grep :80
tcp  0  0  0.0.0.0:80  0.0.0.0:*  LISTEN  125004/nginx

Example 3: ubuntu check process on port

sudo lsof -i:22

Example 4: find out which procses is using port linux

sudo lsof -i:<port_number>

Example 5: process runninng on particular port

sudo ss -lptn 'sport = :80'

Example 6: check which application is using port

In Windows CMD/Powershell:
netstat -aon | findstr '[port_number]'