The Geek Diary

How to Access VNC Server Through A Web Browser in CentOS/RHEL

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This post describes how to access VNC server which is already installed and configured on a CentOS/RHEL server:

  • vnc-server for CentOS/RHEL 5
  • tigervnc-server for CentOS/RHEL 6

Before starting, it is assumed that the access the VNC console via vncviewer is possible:

# vncviewer [Server IP]:5901

But the below message is received when tried to access using URL: http://[Server IP]:5901 over web broswer:

RFB 003.008

The Steps

VNC for HTTP access uses a port number other than the default VNC ports that begin from 5900. To access VNC using HTTP follow the steps outlined below:

1. For CentOS/RHEL 6, make sure tigervnc-server-applet is installed:

# rpm -q tigervnc-server-applet
tigervnc-server-applet-1.0.90-0.17.20110314svn4359.el6.noarch

2. Use below command to install it if not done yet:

# yum install tigervnc-server-applet

3. Access VNC from the URL http://[Server IP]:[5800 + VNC Number]. For example:

http://192.168.1.2:5801

4. It is possible to access using vncviewer at the same time:

# vncviewer [Server IP]:[5900 + VNC Number]

For example:

# vncviewer 192.168.1.2:5901

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