Redirect a site to new domain

.htaccess

# Rewriting on
RewriteEngine on

# redirect to same page in the new site as where a user was in the old site

RewriteBase /
RewriteCond %{SERVER_NAME} =old-domain.com [OR]
RewriteCond %{SERVER_NAME} =new-domain.com
RewriteRule ^ http://new.domain.com%{REQUEST_URI} [END,NE,R=301]

# you can use IfModule structure too.
# You can put it in vhost conf or in .htaccess

#<IfModule mod_rewrite.c>
#RewriteCond %{SERVER_NAME} =old-domain.com [OR]
#RewriteCond %{SERVER_NAME} =new-domain.com
#RewriteRule ^ http://new.domain.com%{REQUEST_URI} [END,NE,R=301]
#</IfModule>