On your wordpress blog admin panel through “Settings” > “General” you have the capability of updating your blog urls. One common mistake that many people make is updating these urls to addresses that do not point to their blog and in turn cause the blog to not resolve properly. If this happens to you, you can update the urls on the database either by logging into the database server directly or by using phpmyadmin. To do so you can run this simple query:
mysql> update wp_options set option_value = ‘http://yourblogdomain.com’ where option_name = ‘home’ or option_name = ’siteurl’;
