Hiding the WordPress Login Page, Hide WordPress Login by restricting access to IP Address With .htaccess

.htaccess

# BEGIN WordPress
# https://wordpress.org/support/article/htaccess
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress

# Protect admin page and login page.
# Only accessible by defined IP.
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteCond %{REQUEST_URI} ^(.*)?wp-login\.php(.*)$ [OR]
RewriteCond %{REQUEST_URI} ^(.*)?wp-admin$
RewriteCond %{REMOTE_ADDR} !^123\.123\.123\.123$
RewriteRule ^(.*)$ - [R=403,L]
</IfModule>

# custom error messages
ErrorDocument 403 "You don't have permission to access this URL."