I do not know how to pose the topic. But basically what I did was I created a subdomain in bind.
My lifelist file...

<VirtualHost *>
DocumentRoot /var/www/lifelist/index.html

ServerName lifelist.localhost

<Directory /var/www/lifelist/index.html/>
Options Indexes FollowSymLinks MultiViews +Includes
AllowOverride None
Order allow,deny
allow from all
</Directory>
</VirtualHost>

The subdomain works...
lifelist.thelearningnerd.com
This may be a stupid quesetion. But how do I edit the index flie so I can work on the subdomain on my computer. I hope I'm making sense. For if I wanted to edit thelearningnerd I would edit the index file. But there is only one.

You just put whichever files you want in the /var/www/lifelist/ directory and open a browser window and enter the path. Instead of 'index.html' at the end of the address, put the name of the new file. Are you using Apache? Not sure I'm understanding what you want?

I do not know how to explain.
But what I mean is when I go to
lifelist.thelearningnerd.com
How do I edit the file so I can change the text of the subdomain?
Yes I'm using apache2.

If you have the above in your Apache configuration file and this is on a localhost, you would open a browser and enter:

and you would then see the index.html contents which usually show "IT WORKS". If you want learningnerd, you would create a directory under /var/www directory 'learningnerd' and then put files there (or you could put it in a sub-directory of lifelist) and then in the browser, type the path to it. Example:

I'm still not sure what you are looking for with 'change the text of the subdomain'?

Thanks for the reply. However that is not what I mean. I found a forum topic which has the same question that I'm trying to get out.
http://ubuntuforums.org/showthread.php?t=1809834