centos7.6安装vnc-server!

VNC是（ Virtual Network Computing）,VNC允许Linux系统可以实现像Windows中的远程桌面访问那样访问Linux桌面。

centos7.6安装vnc-server的步骤如下：

1.yum install tigervnc-server tigervnc-server-module vnc -y

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

3.vim /etc/systemd/system/vncserver@\:1.service

修改后内容如下(把替换为root，把/usr/sbin替换成/sbin，添加User=root)：

[Unit]

Description=Remote desktop service (VNC)

After=syslog.target network.target

[Service]

Type=forking

User=root

ExecStartPre=/bin/sh -c '/usr/bin/vncserver -kill %i > /dev/null 2>&1 || :'

ExecStart=/sbin/runuser -l root -c "/usr/bin/vncserver %i"

PIDFile=/root/.vnc/%H%i.pid

ExecStop=/bin/sh -c '/usr/bin/vncserver -kill %i > /dev/null 2>&1 || :'

[Install]

WantedBy=multi-user.target

4.输入vncpasswd

5.systemctl daemon-reload

systemctl enable vncserver@\:1.service

systemctl start vncserver@\:1.service

systemctl status vncserver@\:1.service

6.普通用户的话，需要先复制配置文件。

cp -p /lib/systemd/system/vncserver@.service /etc/systemd/system/vncserver@\:2.service

vim /etc/systemd/system/vncserver@\:2.service

修改后内容如下(把替换为oracle):

[Unit]

Description=Remote desktop service (VNC)

After=syslog.target network.target

[Service]

Type=forking

ExecStartPre=/bin/sh -c '/usr/bin/vncserver -kill %i > /dev/null 2>&1 || :'

ExecStart=/usr/sbin/runuser -l oracle -c "/usr/bin/vncserver %i"

PIDFile=/home/oracle/.vnc/%H%i.pid

ExecStop=/bin/sh -c '/usr/bin/vncserver -kill %i > /dev/null 2>&1 || :'

[Install]

WantedBy=multi-user.target

7.切换到普通用户oracle，并且执行vncpasswd命令输入vnc密码。

8.systemctl daemon-reload

systemctl enable vncserver@\:2.service

systemctl start vncserver@\:2.service

systemctl status vncserver@\:2.service