标签：VNC service root vncserver centos7 systemctl vnc 安装 localhost
环境:
OS:Centos 7
前提条件:
系统需要安装相关图形界面的软件包,否则安装vnc后启动不了
yum groupinstall "GNOME Desktop" "Graphical Administration Tools"
或是安装如下的
yum groups install GNOME
查看已经安装的组
yum grouplist
1.安装vnc和vncserver
yum -y install vnc
yum -y install tigervnc-server
2.关闭防火墙
systemctl status firewalld.service
systemctl stop firewalld.service
systemctl disable firewalld.service
vi /etc/selinux/config
set "SELINUX=disabled" and comment the rest lines.
以开启1号窗口为例（也可以同时开启多个窗口，修改数字即可），方法如下：
cp /lib/systemd/system/vncserver@.service /etc/systemd/system/vncserver@:1.service
编辑/etc/systemd/system/vncserver@:1.service,设置用户root相关参数,修改前后内容如下:
[root@hxl01 ~]# more /etc/systemd/system/vncserver@:1.service # The vncserver service unit file # # Quick HowTo: # 1. Copy this file to /etc/systemd/system/vncserver@.service # 2. Replace <USER> with the actual user name and edit vncserver # parameters appropriately # (ExecStart=/usr/sbin/runuser -l <USER> -c "/usr/bin/vncserver %i" # PIDFile=/home/<USER>/.vnc/%H%i.pid) # 3. Run `systemctl daemon-reload` # 4. Run `systemctl enable vncserver@:<display>.service` # # DO NOT RUN THIS SERVICE if your local area network is # For a secure way of using VNC, you should # limit connections to the local host and then tunnel from # the machine you want to view VNC on (host A) to the machine # whose VNC output you want to view (host B) # # [user@hostA ~]$ ssh -v -C -L 590N:localhost:590M hostB # # this will open a connection on port 590N of your hostA to hostB's port 590M # (in fact, it ssh-connects to hostB and then connects to localhost (on hostB). # See the ssh man page for details on port forwarding) # # You can then point a VNC client on hostA at vncdisplay N of localhost and with # the help of ssh, you end up seeing what hostB makes available on port 590M # # Use "-nolisten tcp" to prevent X connections to your VNC server via TCP. # # Use "-localhost" to prevent remote VNC clients connecting except when # doing so through a secure tunnel. See the "-via" option in the # `man vncviewer' manual page. [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 <USER> -c "/usr/bin/vncserver %i" PIDFile=/home/<USER>/.vnc/%H%i.pid ExecStop=/bin/sh -c '/usr/bin/vncserver -kill %i > /dev/null 2>&1 || :' [Install] WantedBy=multi-user.target
修改为:
[root@hxl01 ~]# more /lib/systemd/system/vncserver@:1.service # The vncserver service unit file # # Quick HowTo: # 1. Copy this file to /etc/systemd/system/vncserver@.service # 2. Replace <USER> with the actual user name and edit vncserver # parameters appropriately # (ExecStart=/usr/sbin/runuser -l <USER> -c "/usr/bin/vncserver %i" # PIDFile=/home/<USER>/.vnc/%H%i.pid) # 3. Run `systemctl daemon-reload` # 4. Run `systemctl enable vncserver@:<display>.service` # # DO NOT RUN THIS SERVICE if your local area network is # For a secure way of using VNC, you should # limit connections to the local host and then tunnel from # the machine you want to view VNC on (host A) to the machine # whose VNC output you want to view (host B) # # [user@hostA ~]$ ssh -v -C -L 590N:localhost:590M hostB # # this will open a connection on port 590N of your hostA to hostB's port 590M # (in fact, it ssh-connects to hostB and then connects to localhost (on hostB). # See the ssh man page for details on port forwarding) # # You can then point a VNC client on hostA at vncdisplay N of localhost and with # the help of ssh, you end up seeing what hostB makes available on port 590M # # Use "-nolisten tcp" to prevent X connections to your VNC server via TCP. # # Use "-localhost" to prevent remote VNC clients connecting except when # doing so through a secure tunnel. See the "-via" option in the # `man vncviewer' manual page. [Unit] Description=Remote desktop service (VNC) After=syslog.target network.target [Service] Type=simple # 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 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
4.更新systemctl以使其生效；
systemctl daemon-reload
5.进入到oracle设置vnc密码
su - oracle
执行vncpasswd，并输入访问密码，操作如下：
$ vncpasswd
Password:
Verify:
6.启动
然后返回root用户下，以后就可以通过systemd来控制vncserver服务的启停了。
例如，启动服务：
# systemctl start vncserver@:1.service
7.查看状态
systemctl status vncserver@:1.service
8.查看5901端口
[root@host01 /]# ss -nlp|grep 5901
问题：
问题1 vnc连接后老是出现：authentication is required to set the network proxy used for
解决办法：
cd /etc/xdg/autostart/
vi polkit-gnome-authentication-agent-1.desktop
添加：X-GNOME-Autostart-enabled=false
然后重启系统
reboot
或是
1. vi /etc/xdg/autostart/gpk-update-icon.desktop
2. 在底部添加X-GNOME-Autostart-enabled=false
问题2：
取消屏幕保护
Application—System Tools—Setting—Hardware—Power Saving—Blank screen—never
3.问题
[root@host01 ~]# systemctl start vncserver@:2.service
Job for vncserver@:2.service failed because a configured resource limit was exceeded. See "systemctl status vncserver@:2.service" and "journalctl -xe" for details.
解决办法:
[root@host01 ~]# vi /lib/systemd/system/vncserver@:2.service
修改type=simple
4.发现服务状态没有启动但是端口是启动了的
[root@localhost ~]# ss -nlp|grep 5901
tcp LISTEN 0 5 *:5901 *:* users:(("Xvnc",pid=1883,fd=9))
tcp LISTEN 0 5 [::]:5901 [::]:* users:(("Xvnc",pid=1883,fd=10))
[root@localhost ~]#
[root@localhost ~]# systemctl status vncserver@:1.service
● vncserver@:1.service - Remote desktop service (VNC)
Loaded: loaded (/etc/systemd/system/vncserver@:1.service; disabled; vendor preset: disabled)
Active: inactive (dead)
Oct 22 08:04:17 localhost.localdomain systemd[1]: Starting Remote desktop service (VNC)...
Oct 22 08:04:17 localhost.localdomain systemd[1]: Started Remote desktop service (VNC).
Oct 22 08:04:21 localhost.localdomain systemd[1]: New main PID 1883 does not belong to service, and PID file is not owned by root. Refusing.
[root@localhost ~]#
5.服务已经启动但是端口没有启动
解决:
rm -rf /tmp/.X*
[root@gaia data]# systemctl daemon-reload
[root@gaia data]# systemctl restart vncserver@:1.service
[root@gaia data]# systemctl status vncserver@:1.service
6.vnc连接黑屏解决办法
su - oracle
cd /home/oracle/.vnc
chmod 777 ./xstartup
问题7:
/home/dmdba/.vnc/xstartup: line 5: 27299 Terminated /etc/X11/xinit/xinitrc
Killing Xvnc process ID 27263
解决办法:
yum install mesa*
标签：VNC,service,root,vncserver,centos7,systemctl,vnc,安装,localhost 来源： https://www.cnblogs.com/hxlasky/p/16453796.html
本站声明： 1. iCode9 技术分享网（下文简称本站）提供的所有内容，仅供技术学习、探讨和分享； 2. 关于本站的所有留言、评论、转载及引用，纯属内容发起人的个人观点，与本站观点和立场无关； 3. 关于本站的所有言论和文字，纯属内容发起人的个人观点，与本站观点和立场无关； 4. 本站文章均是网友提供，不完全保证技术分享内容的完整性、准确性、时效性、风险性和版权归属；如您发现该文章侵犯了您的权益，可联系我们第一时间进行删除； 5. 本站为非盈利性的个人网站，所有内容不会用来进行牟利，也不会利用任何形式的广告来间接获益，纯粹是为了广大技术爱好者提供技术内容和技术思想的分享性交流网站。