为什么我的.htaccess文件无法正确重定向？

Question

This is my code:

Header set Cache-Control "max-age=0, private, no-store, no-cache, must-revalidate"

RewriteEngine on
RewriteCond %{REQUEST_URI} !(admin)
RewriteRule !maintenance\.php$ /maintenance.php [R=301,L]

I want to redirect all traffic on the site to maintenance.php except for any requests for files in /admin. I've tried so many combinations that never work. It always redirects no matter what. I can't figure out what could be causing this.

UPDATE: I figured something out. If I comment out the .htaccess in the admin folder, Ben's code works. Here's the code there:

AuthType Basic
AuthName "Restricted area"
AuthUserFile "/home1/user/.htpasswds/public_html/example/admin/passwd"
require valid-user

What can I do to this .htaccess file to allow it to work?

Answer 1

Don't use permanent redirect R=301 in this purpose, you site is not maintenance permanently. Use temporary redirect R=302 only, otherwise your users will always see maintenance page even if you remove this rule, because R=301 is cached by browser.

%{REQUEST_URI} starts with / .

RewriteCond %{REQUEST_URI} !^/admin
RewriteCond %{REQUEST_URI} !^/maintenance.php$
RewriteRule ^ /maintenance.php [R=302,L]

Answer 2

why don't you use this line DirectoryIndex maintenance.php in .htaccess in order to redirect to this page . ones your site is ready you can remove maintenance mode by commenting the above line