本文主要讲述的是通过vnc方式访问虚拟机不是在kvm虚拟机安装配置vnc，通过虚拟主机的IP地址与端口进行访问，kvm虚拟化对vnc的支持相对比较好，在虚拟主机上配置vnc访问虚拟机也是多提供一种方式访问虚拟机，以下是相关的配置步骤：
1，修改qemu.conf配置文件
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
|
[root@KVM qemu]# vi /etc/libvirt/qemu.conf
# Master configuration file for the QEMU driver.# All settings described here are optional - if omitted, sensible# defaults are used.# VNC is configured to listen on 127.0.0.1 by default.# To make it listen on all public interfaces, uncomment# this next option.## NB, strong recommendation to enable TLS + x509 certificate# verification when allowing public access#vnc_listen = "0.0.0.0"
# Enable this option to have VNC served over an automatically created# unix socket. This prevents unprivileged access from users on the# host machine, though most VNC clients do not support it.## This will only be enabled for VNC configurations that do not have# a hardcoded 'listen' or 'socket' value. This setting takes preference# over vnc_listen.##vnc_auto_unix_socket = 1# Enable use of TLS encryption on the VNC server. This requires# a VNC client which supports the VeNCrypt protocol extension.# Examples include vinagre, virt-viewer, virt-manager and vencrypt# itself. UltraVNC, RealVNC, TightVNC do not support this## It is necessary to setup CA and issue a server certificate# before enabling this.##vnc_tls = 1 |
说明2：在虚拟主机上有很多个虚拟机的时候，需要指定每个虚拟机的端口。
2，修改虚拟机的配置文件添加如下配置：
<graphics type='vnc' port='5913' autoport='no' listen='0.0.0.0'>
<listen type='address' address='0.0.0.0'/>
</graphics>
[root@KVM qemu]# virsh edit hadoop3
3，启动并测试VNC，查看VNC端口
|
1
|
[root@KVM qemu]# netstat -lntp |grep 59*
|
最后使用vnc登录的效果如下图：
备注：第一次在使用vnc访问虚拟机的时候会出现一闪就不见了的问题？具体的解决方法如下：
依次打开vnc客户端--->依次点击option--->Advanced--->Expert--->找到ColourLevel,默认的值是pal8，修改为rgb222或full.,见下图一图二:1,2,3
本文转自 lqbyz 51CTO博客，原文链接:http://blog.51cto.com/liqingbiao/1741103