Allow admin login at /admin

Question

I am interested in:

1. how can we change the default login url /wp-admin to /login
2. how can we add another url for login so that both /wp-admin and /login would work

I tried to use a custom filter and .htaccess as in the following example but without success.

functions.php

add_filter('admin_url', 'my_new_admin_url');

function my_new_admin_url()
{
    return '/login/';
}

.htaccess

Redirect permanent /wp-admin/ /login/

Answer 1

another option - redirect /admin/ to wp-login.php with a parse_query action hook:

function wpa53048_parse_query( $query ){
    if( $query->query_vars['pagename'] == 'admin' ):
        wp_redirect( wp_login_url() );
        exit;
    endif;
}
add_action( 'parse_query', 'wpa53048_parse_query' );

EDIT

Well the above apparently only works with certain permalink structures. Here's another method hooked to parse_request:

function wpa53048_parse_request( $query ){
    if( $query->request == 'admin' ):
        wp_redirect( wp_login_url() );
        exit;
    endif;
}
add_action( 'parse_request', 'wpa53048_parse_request' );

Answer 2

I use just this at the top of my .htaccess file:
RewriteRule ^login/?$ /wp-login.php [NC,L]

or the following, case WordPress resides in a folder, and the rule refers to the root:
RewriteRule ^login/?$ /wp/wp-login.php [NC,L]

I've seen [QSA,L] used instead of [NC,L], but don't know the difference...

Reference: http://planetozh.com/blog/2011/01/pretty-login-url-a-simple-rewrite-api-plugin-example/