Redirect www.mainsite.com/subsite/wp-login to www.mainsite.com/wp-login
I suppose www.mainsite.com is the main blog and www.mainsite.com/subtitle is a dynamic child blog. You can use MU api for this: add_action(“init”, function(){ global $pagenow; if ( ‘wp-login.php’ !== $pagenow ) return; global $blog_id; $main_blog_ID = 1; // main site ID (use get_current_blog_id() to get ID) if ( (int) $blog_id !== (int) $main_blog_ID ) { … Read more