1. Use the root user, look for the occupied port netstat -tln | grep 80, get pid
2. the kill -9 pid
3. Check the port to which the program belongs to? Port is occupied by what process
lsof -i :80
1. Use the root user, look for the occupied port netstat -tln | grep 80, get pid
2. the kill -9 pid
3. Check the port to which the program belongs to? Port is occupied by what process
lsof -i :80