Which type of server? Web server accessing can be filter by its own configuration file, you can filter which ip address can access to which directory on the server

The following link may be helpful for this:

http://www.nch.com.au/kb/10046.html

Moreover, you need to purchase a public IP from your ISP.

I am not familiar with networking concepts. I am working on a PHP project. For that i am using WAMP server as a Localhost. This localhost is accessible by LAN connected computers. But I wanted to access my localhost/PHP project by the people which are not in the LAN. So please suggest me... Can anyone share me a video about it... plzzz

Yeah... I have a public IP. But dont know what to do after that

As said Ka Cahn you must configure NAT or virtual server in your router. This link shows an example with a D-Link router

http://www.youtube.com/watch?v=RgryvL6vB70

You should look for the manual of your router in order to obtain the correct process.

If you have a public IP then you have to enter followings in the ip settings.

1. public ip

2. subnet mask (usually service provider will give u this)

3. default gateway

then you have to be carefull only to open port 80 (for http access only)( since u have public ip hacking is possible)

if you complete above steps and connect your machine to network, you can access your site by browsing

http://your-public-ip/PHP

from anywhere in the world.

Where to enter

1. public ip

2. subnet mask (usually service provider will give u this)

3. default gateway

If you have a public IP address, you need to configure your virtualhost to listen to requests in that IP, and map them to the correct DocumentRoot. Something like this:

ServerName localhost

ServerAlias YOUR_PUBLIC_IP

DocumentRoot "c:/htdocs/...."

Just go to ip settings. (ipv4 not ipv6). then you can find them. or just google it.

Thank you very much guys for your help... It helped me a lot... Thank you...!!!