What is Apache2 VirtualHost?

Apache2 VirtualHost is use for multidomain purpose. We need to configure 2 VirtualHost name to each domain, so we can see a different website from each domain.

First I assume we have installed apache2 webserver and it's running smootly in Ubuntu Server.

To configure apache webserver VirtualHost in Ubuntu server is different from other linux OS like fedora/redhat/centos. In Ubuntu apache2 have separated the virtual host into sites-available and sited-enabled directory.

Example we have domain inferno.web.id

We need to login into the server and have a root user previleges.
We also need to create a file name inferno.web.id in sites-available directory

[code]sentono@athena:~$sudo su
Password:
root@athena:/home/sentono#[/code]

Change directory to /etc/apache2/sites-available/

[code]root@athena:/home/sentono#cd /etc/apache2/sites-available/
root@athena:/etc/apache2/sites-available#[/code]

Add NameVirtualHost into Default site

[code]root@athena:/etc/apache2/sites-available#pico default[/code]

#change or add this line below

[code]NameVirtualHost 192.168.1.1:80[/code]

#save and exit

Create a new virtualhost file

[code]root@athena:/etc/apache2/sites-available#pico inferno.web.id

<VirtualHost 192.168.1.1:80>
ServerName inferno.web.id
DocumentRoot /home/www/inferno.web.id/public_html/
</VirtualHost>

#save this file and exit [/code]

We need to enabled our new Website

[code]root@athena:/etc/apache2/sites-available#a2ensite inferno.web.id[/code]

Restart Apache2 Webserver

[code]root@athena:/etc/apache2/sites-available#/etc/init.d/apache2 restart[/code]

Create testing index.php

[code]root@athena:/etc/apache2/sites-available#nano /home/www/inferno.web.id/public_html/index.php

<? phpinfo() ?>

#save and exit[/code]

Testing it with IE

[code]http://inferno.web.id[/code]