RewriteEngine On
RewriteCond %{HTTP_HOST} !^www\.
RewriteRule ^(.*)$ http://www.%{HTTP_HOST}/$1 [R=301,L]

• your on multiple domains
• your need to test your projects with same configuration with the server
• test your projects without touching your public server
• your just organizing your projects into groups
• or setup a local copy of your blog or website

1. Got to your Apache folder in XAMPP and locate the conf files. The are usually located at <<local path>>\xampp\apache\conf\extra
2. Open the file named httpd-vhosts.conf with a text editor
3. If posible read the instructions so may have the idea on what you are doing
4. Now paste the following code at the bottom of the file without touching the document.
   
   NameVirtualHost 127.0.0.1:80
<VirtualHost 127.0.0.1:80>
  DocumentRoot E:/xampp/htdocs/    # change this line with your htdocs folder
  ServerName localhost
</VirtualHost>


5. Edit the line DocumentRoot with your own document root folder
6. For each domain you are to configure paste the following lines below, just replace my domain name your corresponding domain:

Installing Apache2.2 as an Service
Installing the Apache2.2 service
The Apache2.2 service is successfully installed.
Testing httpd.conf....
Errors reported here must be corrected before the service can be started.
(OS 10048)Only one usage of each socket address (protocol/network address/port)
is normally permitted. : make_sock: could not bind to address 0.0.0.0:80
no listening sockets available, shutting down
Unable to open logs
Now we Start Apache2.2 :)
The Apache2.2 service is starting.
The Apache2.2 service could not be started.

A service specific error occurred: 1.

More help is available by typing NET HELPMSG 3547.

Its making me insane @#$^#. And then somebody sent me a message from Skype !!!! There it goes, i remembered, Skype is using port 80, and I dont know why. Closed Skype, runned the installed again and viola! It works.

;LoadModule rewrite_module modules/mod_rewrite.so

to

LoadModule rewrite_module modules/mod_rewrite.so

we need to change the AllowOverride directive also from

<Directory />
Options FollowSymLinks
AllowOverride None
Order deny,allow
Deny from all
Satisfy all
</Directory>

to

<Directory />
Options FollowSymLinks
AllowOverride All
Order deny,allow
Deny from all
Satisfy all
</Directory>

You can also rename your .htaccess file by adding the line below on you httpd.conf file

AccessFileName [filename]

example: AccessFileName .configuration

-----
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Goto your apache installation folder its usually at:

Execute this command:

-k install -- tells apache to install an Apache service
-n "Apache2" -- sets its service name to be Apache2
-k start -- Start Apache server
-k restart -- Tells Apache to do a restart

You can then test your installation by typing in http://localhost/ to your browser address bar.

Initially XAMPP stands for X-, A-pache, M-ySQL, P-HP, P-erl. XAMPP may be installed on most of the operating systems namely, Linux, Windows, Mac OS X and Sun Solaris. In Linux XAMPP is called LAMPP but to avoid the misconception it was renamed to XAMPP for Linux. The main feature of XAMPP is its one click server deploy and the easy PHP version switch. XAMPP was initially intended as a web developer tool so it is designed to be free from all restrictions. However, there are ways to secure XAMPP if you are planning to use it in a production environment.

A number of packages are also bundled with XAMPP.
Graphics: libjpeg, libpng, GD, ncurses
Database: SQLite, gdbm, FreeTDS
PHP: Pear, ezpdf, TURCK
XML: xpat, libxml, salbotron
Generic: mod_perl, zlib, IMAP, Ming, mcrypt, gettext, freetype2

The latest version of XAMPP may downloaded from its website.

XAMPP Download:
Linux
Windows
Mac OS X
Solaris

You may choose which installer to download the easiest is the .exe. if you have downloaded the tar ball you may use the command to install:

tar xvfz xampp-linux-1.5.3a.tar.gz -C /opt

by default in linux XAMPP is located at:
/opt/lampp

to start XAMPP you may issue the command:
./lampp start

to stop XAMPP you may issue the command
./lampp stop

check your XAMPP installation by typing the following on your web browsers address bar:
http://localhost/

other more specific commands:
Start commands
/opt/lampp/lampp startapache
/opt/lampp/lampp startmysql
/opt/lampp/lampp startftp

Stop commands
/opt/lampp/lampp stopapache
/opt/lampp/lampp stopmysql
/opt/lampp/lampp stopftp

Switch PHP versions
/opt/lampp/lampp php4
/opt/lampp/lampp php5


To uninstall XAMPP
rm -rf /opt/lampp


There would be no problem in Windows for there is an administration tool for running server applications in XAMPP. It usually located at:

Start -> All Programs -> apachefriends -> xampp ->