Named Based routing or Virtual Host configuration

Ever wonder to run single IP address over multiple domains?
Rephrasing:  Run multiple site/domain on single ip?

Well, here comes name based routing into picture.
You can create virtual host entry in your apache's or nginx's site-available folder, and the you can enable it to point your domain to your vps/server ip address.

Here is how a typical vhost entry look like:


<VirtualHost *:80>
    ServerName  yourDomainNameGoesHere.com
    serverAdmin adminEmailId@abc.com
    DocumentRoot /path/to/yourDomainNameGoesHere.com/root_directory/
    <Directory /path/to/yourDomainNameGoesHere.com/root_directory/ >
        Options Indexes FollowSymLinks MultiViews
        AllowOverride None
        Order allow,deny
        allow from all
    </Directory>
</VirtualHost>


That's it. This is all you need to let your server to identify request coming to "
yourDomainNameGoesHere.com". In name based routing , your server will read the url for serverName and then choose the vhost configuration that best matches to it.

Question: How will a domain know what is my  server IP?
Answer: For that, you need to go to your domain panel and inside dns management tab change the dns settings. Change A-record to point your domain to your server IP.