Resolve the problem that the port is occupied when Nginx starts

Today, when Lao Zuo needed to install and start Nginx when testing and installing LEMP, he was prompted with the error message "Starting nginx: nginx: [emergency] bind() to 0.0.0.0:80 failed (98: Address alre".

This problem is caused by the occupation of Nginx port 80.

fuser -n tcp 80

Check what is occupied, or use netstat - ntpl to check who is occupied, and then KILL the occupied PID

Then delete the process through kill - 9

Finally, start/etc/init.d/nginx.