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]'