安裝配置VNC
1.服務器端配置YUM
mount -o loop /data/software/CentOS-7.6-x86_64-DVD-1810.iso /mnt
cd /etc/yum.repos.d
vi local.repo
------------------------------
[base]
name=centos 7.6
baseurl=file:///mnt
gpgcheck=0
enable=1
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2.安裝圖形化
安裝Linux時選擇了最小化安裝，因此需要安裝圖形化支持
# 查看是否安裝有圖形化界面
rpm -qa|grep gnome
# 安裝圖形化界面
yum groupinstall "X Window System" "Chinese Support" "GNOME Desktop"
X Window System和GNOME Desktop的關系可以參考：關系
3.安裝VNC Server
yum install -y tigervnc tigervnc-server
4.配置VNC Server
vncserver --help
# 最簡單的配置
vncserver :1
----------------------------------------------------------
[root@localhost system]# vncserver :1
You will require a password to access your desktops.
Password:
Verify:
Would you like to enter a view-only password (y/n)? n
A view-only password is not used
New 'localhost.localdomain:1 (root)' desktop is localhost.localdomain:1
Creating default startup script /root/.vnc/xstartup
Creating default config /root/.vnc/config
Starting applications specified in /root/.vnc/xstartup
Log file is /root/.vnc/localhost.localdomain:1.log
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VNCSERVER允許同時啟動多個VNCSERVER，每一個不同的VNCSERVER使用display#來區分，不同的用戶可以使用不同的display#，同一個用戶，也可以啟動多個display#。
-
可以到config文件中修改配置，主要配置有分辨率geometry
以下演示創建oracle用戶的VNCSERVER
useradd oracle passwd oracle su - oracle vncserver :2 # 在使用Vnc Viewer連接的時候，輸入display#后直接連入oracle賬戶
5.VNC Server管理
5.1.設置開機自啟動
systemctl enable vncserver@:1.service
5.2.關閉VNC Server
vncserver -kill :1
5.3.修改配置
vncserver -kill :1
vi $HOME/.vnc/config
------------------------
## Supported server options to pass to vncserver upon invocation can be listed
## in this file. See the following manpages for more: vncserver(1) Xvnc(1).
## Several common ones are shown below. Uncomment and modify to your liking.
##
# securitytypes=vncauth,tlsvnc
# desktop=sandbox
geometry=1440x900
# depth
# localhost
# alwaysshared
------------------------
vncserver :1
6.使用VNC Viewer連接VNC Server
6.1.下載安裝
6.2.連接
輸入IP和Display#即可
6.3.全屏展示
如果VNCServer的分辨率設置合適的話，可以全屏展示
鼠標懸浮到VNC Viewer的中間，點擊全屏選項即可
