How to setup sub-domains like blogspot

Question

What should do to setup a sub-domain for the users when they sign-up into my site.

What are the infrastructure required? I am using Linux servers.

Answer 1

If your using Linux server's I'm assuming your using Apache as your webserver.

You'll have to setup proper DNS routing for the sub domain as well as a virtual host.

Virtual Hosts are fairly easy to setup but I'm not sure how easy it is to do them on the fly progmatically.

Most of the time it's as easy as editing your apache config file and adding the following:

Port 80
ServerName www.mydomain.com

NameVirtualHost *:80


DocumentRoot /www/user-bob
ServerName bob.mydomain.com
...



DocumentRoot /www/user-sally
ServerName sally.mydomain.com
...
 

The VirtualHost Documention will probably of some use to you.