<b>RedHat Linux 5企业版开启VNC Server远程桌面功效手记</b>[服务器安全]

环境:RedHat Linux 5企业版.
Xwindows:gnome （红帽默许安装的图形界面）

固然我们可以利用SSH衔接远程通过字符界面来操作Linux,但是关于更多熟习图形人来说是很不便利的,因此开启Linux的远程桌面还是很有必要的.目前有两种对比风行的方法:XDM(X display manager）筹划和VNC筹划,而我个人对比偏向于VNC筹划,一是因为VNC筹划配置起来相对对比简单,二是VNC筹划支持多种衔接方法,比方通过浏览器拜候Linux桌面,免除需求安装客户端的麻烦.



接下来进入具体配置阐明:

一, 确认及安装VNCSERVER.

1,首先确认你服务器能否配置了VNCSERVER,可以在号令行下敲入以下号令查看:

[root@localhost: ~]#rpm -qa |grep vnc

vnc-server-4.1.2-14.el5 #返回VNCSEVER服务器端版本阐明你已经安装了VNCSERVER.

2,假如没有安装VNCSEVER,那么从光盘找到安装包举行安装.

首先将光盘挂载(也叫解压)到某个目录这里是在/var/ftp/pub/下面成立了rhel5-64目录

mount -o loop rhel-server-5.3-x86_64-dvd.iso /var/ftp/pub/rhel5-64/

然后在/var/ftp/pub/rhel5-64/Server目录下找到 vnc-server-4.1.2-14.el5.x86_64.rpm安装包,利用RPM号令直接安装;

rpm -ivh vnc-server-4.1.2-14.el5.x86_64.rpm


二,开始配置VNCSERVER

1,启动VNCSERVER,第一次启动VNCSERVER会提醒输入密码,这里分为管理员账户及普通账户,启动方法略有所差别.

管理员:

[root@localhost /]# vncserver

You will require a password to access your desktops.

Password: 123456 #输入vnc 衔接密码

Verify: 123456 #确认vnc密码

xauth: creating new authority file /root/.Xauthority

New ‘localhost.localdomain:1 (root)’ desktop is localhost.localdomain:1

Creating default startup script /root/.vnc/xstartup
Starting applications specified in /root/.vnc/xstartup
Log file is /root/.vnc/localhost.localdomain:1.log


普通用户:

[root@localhost /]#su ceboy #ceboy 是用户名
[ceboy@localhost /]$ vncserver

You will require a password to access your desktops.

Password: 123456 #输入vnc 衔接密码

Verify: 123456 #确认vnc密码

xauth: creating new authority file /home/ceboy/.Xauthority

New ‘localhost.localdomain:2 (ceboy)’ desktop is localhost.localdomain:2

Creating default startup script /home/ceboy/.vnc/xstartup
Starting applications specified in /home/ceboy/.vnc/xstartup
Log file is /home/ceboy/.vnc/localhost.localdomain:2.log

#这里要注意:每个用户都可以启动自己的VNCSERVER远程桌面,同时每个用户可以启动多个VNCSERVER远程桌面,它们用ip加端口号:ip:1、ip:2、ip:3 来标识、辨别,利用同一端口会使别的登录的用户自动退出.另,VNCSERVER的大部份配置文件及日记文件都在用户home目录下.vnc目录下.

用户可以自定义启动号码如:

[ceboy@localhost /]$ vncserver :2 #注意:2前面一定要有空格.
A VNC server is already running as :2三,相关桌面配置,RedHat Linux支持两种图形情势:KDE情势和gnome情势.

1,你的RH利用的什么图形情势这个普通只有登录到图形界面查看一下才能知道,大概通过ps -A号令列出全部当前运行的程序,看看有没有KDE大概gnome字样来判断一下.

假如你是gnome桌面,那么你需求改正/root/.vnc/xstartup的配置文件.


[root@localhost .vnc]# vi xstartup

#!/bin/sh

# Uncomment the following two lines for normal desktop:

# unset SESSION_MANAGER #将此行的注释去掉

# exec /etc/X11/xinit/xinitrc #将此行的注释去掉

[ -x /etc/vnc/xstartup ] && exec /etc/vnc/xstartup

[ -r $HOME/.Xresources ] && xrdb $HOME/.Xresources

xsetroot -solid grey

vncconfig -iconic &

xterm -geometry 80×24 10 10 -ls -title “$VNCDESKTOP Desktop” &

gnome-session gnome #增添这一句是衔接时利用gnome 桌面环境

twm &

设置改正完毕最好是重启一次系统,不然设置不会见效.我采取的办法是杀死VNCSERVER进程再重运行VNCSERVER.

[root@localhost .vnc]#vncserver -kill :1 #这里你启动vncserver时是什么端口号要对应上.
[root@localhost .vnc]#vncserver :1 #重启VNCSERVER,注意:1前面一定要有空格.

2,设置用户信息及辨别率.

[root@localhost: ~]#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

# <URL:http://www.uk.research.att.com/archive/vnc/sshvnc.html >.

# Use “-nolisten tcp” to prevent X connections to your VNC server via TCP.

# Use “-nohttpd” to prevent web-based VNC clients connecting.