CentOS 7.x上的VNC很多配置文档都不完全正确，主要是不能完全显示图形界面。
如果我们能够安装redhat entprise Linux 7.x的官方文档配置就没有这个问题了。
下面是根据redhat entprise Linux 7.x的官方文档做的实验。
[root@compute1 ~]# yum installtigervnc-server -y
Installed:
tigervnc-server.x86_640:1.8.0-1.el7
Complete!
[root@compute1 ~]# cat/lib/systemd/system/[email protected]
# The vncserver service unitfile
#
# Quick HowTo:
# 1. Copy this file to/etc/systemd/system/[email protected]
# 2. Replace <USER> withthe actual user name and edit vncserver
# parameters appropriately
# ("User=<USER>"and "/home/<USER>/.vnc/%H%i.pid")
# 3. Run `systemctldaemon-reload`
# 4. Run `systemctl enablevncserver@:<display>.service`
#
# DO NOT RUN THIS SERVICE ifyour local area network is
# untrusted! For a secure wayof using VNC, you should
# limit connections to thelocal host and then tunnel from
# the machine you want to viewVNC on (host A) to the machine
# whose VNC output you want toview (host B)
#
# [user@hostA ~]$ ssh -v -C -L590N:localhost:590M hostB
#
# this will open a connectionon port 590N of your hostA to hostB's port 590M
# (in fact, it ssh-connects tohostB and then connects to localhost (on hostB).
# See the ssh man page fordetails on port forwarding)
#
# You can then point a VNCclient on hostA at vncdisplay N of localhost and with
# the help of ssh, you end upseeing 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 securetunnel. See the "-via" option in the
# `man vncviewer' manual page.
[Unit]
Description=Remote desktopservice (VNC)
After=syslog.targetnetwork.target
[Service]
Type=forking
User=<USER>
# Clean any existing files in/tmp/.X11-unix environment
ExecStartPre=-/usr/bin/vncserver-kill %i
ExecStart=/usr/bin/vncserver%i
PIDFile=/home/<USER>/.vnc/%H%i.pid
ExecStop=-/usr/bin/vncserver-kill %i
[Install]
WantedBy=multi-user.target
[root@compute1 ~]# cp/lib/systemd/system/[email protected]/etc/systemd/system/[email protected]
[root@compute1 ~]# vi/etc/systemd/system/[email protected]
# The vncserver service unitfile
#
# Quick HowTo:
# 1. Copy this file to/etc/systemd/system/[email protected]
# 2. Replace <USER> withthe actual user name and edit vncserver
# parameters appropriately
# ("User=<USER>"and "/home/<USER>/.vnc/%H%i.pid")
# 3. Run `systemctldaemon-reload`
# 4. Run `systemctl enablevncserver@:<display>.service`
#
# DO NOT RUN THIS SERVICE ifyour local area network is
# untrusted! For a secure wayof using VNC, you should
# limit connections to thelocal host and then tunnel from
# the machine you want to viewVNC on (host A) to the machine
# whose VNC output you want toview (host B)
#
# [user@hostA ~]$ ssh -v -C -L590N:localhost:590M hostB
#
# this will open a connectionon port 590N of your hostA to hostB's port 590M
# (in fact, it ssh-connects tohostB and then connects to localhost (on hostB).
# See the ssh man page fordetails on port forwarding)
#
# You can then point a VNCclient on hostA at vncdisplay N of localhost and with
# the help of ssh, you end upseeing 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 securetunnel. See the "-via" option in the
# `man vncviewer' manual page.
[Unit]
Description=Remote desktopservice (VNC)
After=syslog.targetnetwork.target
[Service]
Type=forking
User=root
# Clean any existing files in/tmp/.X11-unix environment
ExecStartPre=-/usr/bin/vncserver-kill %i
#ExecStart=/usr/bin/vncserver%i
ExecStart=/usr/sbin/runuser-l root -c "/usr/bin/vncserver %i -geometry 1280x1024"
PIDFile=/root/.vnc/%H%i.pid
ExecStop=-/usr/bin/vncserver-kill %i
[Install]
"/etc/systemd/system/[email protected]"49L, 1754C written
[root@compute1 ~]# systemctldaemon-reload
[root@compute1 ~]# vncpasswd
Password:
Verify:
Would you like to enter aview-only password (y/n)? n
[root@compute1 ~]#
To start or enable theservice, specify the display number directly in the command. The fileconfigured
above in Procedure 12.1,“Configuring a VNC Display for a Single User” works as atemplate, in which %i
is substituted with thedisplay number by systemd. With a valid display number, execute thefollowing
command:
~]# systemctl startvncserver@:display_number.service
[root@compute1~]# systemctl start [email protected]
Failedto start [email protected]: Unit name [email protected] missing the instance name.
Seesystem logs and 'systemctl status [email protected]' fordetails.
[root@compute1~]# systemctl start vncserver-root@:1.service
[root@compute1~]#
You can also enable theservice to start automatically at system start. Then, when you login,
vncserver is automaticallystarted. As root, issue a command as follows:
~]# systemctl enablevncserver@:display_number.service
[root@compute1~]# systemctl enable vncserver-root@:1.service
Createdsymlink from/etc/systemd/system/multi-user.target.wants/vncserver-root@:1.serviceto /etc/systemd/system/[email protected].
[root@compute1~]#
用VNC Viewer访问VNC服务器
在输入框中输入“IP地址：display_number”。如下所示：
192.168.226.31:1