sh 如何检查Linux上的侦听端口和应用程序：

Posted 2021-05-06

How to check the listening ports and applications on Linux:
Open a terminal application i.e. shell prompt.
Run any one of the following command:
sudo lsof -i -P -n | grep LISTEN 
sudo netstat -tulpn | grep LISTEN
sudo nmap -sTU -O IP-address-Here