not able to login in magento?

I have moved my blog to makdotgnu.com

A simple tweak
This is a question I was asking every here and there on forums, from last 2 days but finally got the solution.
Magneto has a Good security.
According to this some url are block for admin, so if you are using any domain name or http://localhost/ then just use the IP address of that server, in case of localhost just use 127.0.0.1 instead of localhost, Now your Url will look like on Local
http://127.0.0.1/magnetofolder/index.php/admin
and on your server.
http://server_IP/index.php/admin