安装

  1. 安装tigervnc-server

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    yum install tigervnc-server

  2. 配置密码

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    vncpasswd

  3. 配置VNC

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    cp /lib/systemd/system/vncserver@.service /etc/systemd/system/vncserver@:1.service
编辑此文件如下：

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[Unit]
Description=Remote desktop service (VNC)
After=syslog.target network.target

[Service]
Type=forking
# Clean any existing files in /tmp/.X11-unix environment
ExecStartPre=/bin/sh -c '/usr/bin/vncserver -kill %i > /dev/null 2>&1 || :'
ExecStart=/usr/sbin/runuser -l root -c "/usr/bin/vncserver %i -geometry 1280x1024"
PIDFile=/root/.vnc/%H%i.pid
ExecStop=/bin/sh -c '/usr/bin/vncserver -kill %i > /dev/null 2>&1 || :'

[Install]
WantedBy=multi-user.target

  1. 启动VNC

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    systemctl daemon-reload
    systemctl start vncserver@:1
    systemctl status vncserver@:1
    systemctl enable vncserver@:1

  2. 为了允许外部VNC客户端连接到CentOS中的VNC服务器，您需要确保允许正确的VNC开放端口通过防火墙。如果只启动了一个VNC服务器实例，您只需打开第一个分配的VNC端口：5901 / TCP，通过发出以下命令在运行时应用防火墙配置。

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    firewall-cmd --add-port=5901/tcp --permanent
    firewall-cmd --reload

卸载

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yum remove tigervnc-server

常见问题

  • 在Windows端用VNC Viewer连接测试， 若出现蓝屏

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    yum groupinstall "GNOME Desktop" "Graphical Administration Tools"

  • 启动服务时报错: “Job for vncserver@:1.service failed because a configured resource limit was exceeded. See “systemctl status vncserver@:1.service” and “journalctl -xe” for details.”

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    rm -f /tmp/.X11-unix/X1

    https://serverfault.com/questions/925061/unable-to-start-vnc-server-configured-resource-limit-was-exceeded

  • 在CentOS 7上出现 “runuser: user does not exist”的错误

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    pkill vnc
    systemctl enable vncserver@:1
    systemctl start vncserver@:1

Reference