Ubuntu
sudo service 服务 start/stop/status
防火墙
原始linux的防火墙是iptables,以为过于繁琐,各个发行版几乎都有自己的方案;
ubuntu 的 防火墙 ufw ( ubuntu firewalld )
centos 的 防火墙 ( firewalld )
sodu service ufw start
sodu service ufw stop
sodu service ufw status
CentOS
sudo systemctl 服务 start
sudo systemctl 服务 stop
sudo systemctl 服务 status
sudo systemctl firewalld start
sudo systemctl firewalld stop
sudo systemctl firewalld status