yum install -y tigervnc-server

cp /lib/systemd/system/vncserver@.service /etc/systemd/system/vncserver@:1.service

vi /etc/systemd/system/vncserver@:1.service

useradd tiger    #创建一个连接用户

systemctl daemon-reload
systemctl enable vncserver@:1.service

vi /etc/sysconfig/iptables
-A INPUT -p tcp -m state --state NEW -m tcp --dport 5900 -j ACCEPT
systemctl restart iptables

su tiger