<IfModule mod_rewrite.c>
Options +FollowSymLinks
RewriteEngine on
rewritecond %{http_host} ^wbyxu.com [nc]
rewriterule ^(.*)$ http://weibin.me/$1 [L,R=301]
RewriteCond %{HTTP_HOST} ^www.weibin.me$
RewriteRule ^/?$ "http\:\/\/weibin\.me" [R=301,L]
</IfModule>

UPDATE wp_options SET option_value = replace(option_value,'http://wbyxu.com', 'http://weibin.me') WHERE option_name = 'home' OR option_name ='siteurl';

UPDATE wp_posts SET post_content = replace(post_content,'http://wbyxu.com', 'http://weibin.me');

UPDATE wp_posts SET guid = replace(guid, 'http://wbyxu.com', 'http://weibin.me');