CentOS 配置VNC

对于用惯了WIN系统的朋友来说,没有图形化操作界面的Linux用起来实在太难受了。实际上,Linux也是有图形化操作界面的,这就是VNC。接下来罗伊将告诉大家如何 VNC图形化操作界面。

1,安装桌面环境

[root@dlp ~]#yum -y groupinstall "X Window System" 
[root@dlp ~]#yum -y groupinstall "Desktop" 
[root@dlp ~]#yum -y groupinstall "General Purpose Desktop" groupinstall "X Window System"

2,安装VNC服务器

[root@tanvps ~]# yum -y install tigervnc-server
Loaded plugins: fastestmirror, refresh-packagekit, security
Loading mirror speeds from cached hostfile
* base: mirror-fpt-telecom.fpt.net
* extras: mirror-fpt-telecom.fpt.net
* updates: mirror-fpt-telecom.fpt.net
Setting up Install Process
Resolving Dependencies
–> Running transaction check
—> Package tigervnc-server.i686 0:1.0.90-0.17.20110314svn4359.el6 will be installed
–> Finished Dependency Resolution

Dependencies Resolved

================================================== ==============================
Package Arch Version Repository
Size
================================================== ==============================
Installing:
tigervnc-server i686 1.0.90-0.17.20110314svn4359.el6 base 1.1 M

Transaction Summary
================================================== ==============================
Install 1 Package(s)

Total download size: 1.1 M
Installed size: 2.9 M
Downloading Packages:
tigervnc-server-1.0.90-0.17.20110314svn4359.el6.i686.rpm | 1.1 MB 00:02
warning: rpmts_HdrFromFdno: Header V3 RSA/SHA1 Signature, key ID c105b9de: NOKEY
Retrieving key from file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
Importing GPG key 0xC105B9DE:
Userid : CentOS-6 Key (CentOS 6 Official Signing Key) 

Installed:
tigervnc-server.i686 0:1.0.90-0.17.20110314svn4359.el6

Complete!
[root@tanvps ~]#

3,配置VNC

[root@tanvps ~]# su -jackiebui
[jackiebui@tanvps ~]# vncpasswd
Password:******
verify:******
[jackiebui@tanvps ~]# ls .vnc/

4,编辑VNC配置文件

[root@tanvps ~]# vi /etc/sysconfig/vncservers

# The VNCSERVERS variable is a list of display:user pairs.
#
# Uncomment the lines below to start a VNC server on display :2
# as my ‘myusername’ (adjust this to your own). You will also
# need to set a VNC password; run ‘man vncpasswd’ to see how
# to do that.
#
# DO NOT RUN THIS SERVICE if your local area network is
# untrusted! For a secure way of using VNC, see this URL:
http://kbase.redhat.com/faq/docs/DOC-7028

# 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.

VNCSERVERS=”1:jackiebui” //Uncomment 2 last lines, and edit your VNC user
VNCSERVERARGS[2]=”-geometry 800×600 -nolisten tcp -localhost” // Save and exit

启动VNC

[root@tanvps ~]# vncserver
[root@tanvps ~]# chkconfig vncserver on //设置为开机启动

接下来就可以开始使用VNC了:

输入密码:

连接成功:

 注意:如出现以下错误

vncext: VNC extension running!
vncext: Listening for VNC connections on all interface(s), port 5901
vncext: Listening for HTTP connections on all interface(s), port 5801
vncext: created VNC server for screen 0
[dix] Could not init font path element /usr/share/X11/fonts/misc, removing from list!
[dix] Could not init font path element /usr/share/X11/fonts/Type1, removing from list!
[dix] Could not init font path element /usr/share/fonts/default/Type1, removing from list!
[dix] Could not init font path element built-ins, removing from list! Fatal server error:
could not open default font 'fixed'

请安装下列三个包解决字体问题。
yum install libXfont xorg-x11-xinit xorg-x11-fonts-Type1 

### 配置 VNC 服务器于 CentOS 9 #### 安装必要的软件包 为了使 VNC 服务正常工作,在安装 VNC 之前,需要先确认图形环境已经就绪。对于大多数桌面用户来说,默认情况下会安装 GNOME 桌面环境。如果尚未安装,则可以通过命令 `sudo dnf groupinstall "GNOME Desktop Environment"` 来完成安装[^2]。 接着,通过执行如下指令来安装 TigerVNC 服务器: ```bash sudo dnf install tigervnc-server ``` 此操作将会下载并设置好所需的全部组件以便后续配置。 #### 创建 VNC 用户账户密码 创建一个新的系统用户用于远程访问,并为其设定专有的 VNC 密码: ```bash sudo adduser vncuser su - vncuser vncserver ``` 首次运行时,程序将提示输入并验证新用户的 VNC 访问密码。该过程还会自动生成初始配置文件以及默认显示编号 :1 (即端口 5901)。 #### 修改防火墙规则允许 VNC 流量 为了让外部设备能够连接到本地机器上的 VNC 服务,需调整防火墙策略开放相应的端口号。假设前面提到的显示号为 ":1" ,那么对应的 TCP 端口就是 5901 。可以利用 firewall-cmd 工具添加这条规则: ```bash sudo firewall-cmd --zone=public --add-port=5901/tcp --permanent sudo systemctl reload firewalld.service ``` 上述命令永久性的开启了公共区域下的指定端口,并重新加载了防火墙服务以应用更改。 #### 自动启动 VNC 服务 编辑 `/etc/systemd/system/vncserver@:1.service` 文件(其中 ":1" 表示刚才分配给 VNC 的显示号码),确保其内容类似于下面这样: ```ini [Unit] Description=Start TightVNC server at startup After=syslog.target network.target [Service] Type=forking User=vncuser PAMName=login PIDFile=/home/vncuser/.vnc/%H%i.pid ExecStartPre=-/usr/bin/vncserver -kill :%i > /dev/null 2>&1 ExecStart=/usr/bin/vncserver -depth 24 -geometry 1280x800 :%i ExecStop=/usr/bin/vncserver -kill :%i [Install] WantedBy=multi-user.target ``` 保存修改后的文件后,启用并开启 VNC 服务使其随系统一起自动启动: ```bash sudo systemctl daemon-reload sudo systemctl enable vncserver@:1.service sudo systemctl start vncserver@:1.service ``` 现在应该可以从任何支持 VNC 协议的客户端尝试连接至这台主机了。
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