how can I redirect traffic of all websites (and not one of them) to a page in apache2 conf file?

the goal is creating a maintenance page for all domains.


You need to use the following rewrite rules:

RewriteEngine On
RewriteCond %{REQUEST_URI} !=/maintenance.html
RewriteRule ^ /maintenance.html [R=301]

This should redirect all requests to the maintenance.html page.

  • the goal is creating a maintenance page for "all domains". this not work for all of them. – exim Jan 1 '13 at 8:50
  • @exim This does work for all domains but you will have to put it in a part of your configuration that applies to all domains. If you have one vhost per domain, putting this in just one of them will not work. I would also avoid using a 301 redirect, or even a redirect at all. Just serve up the maintenance page under the URL that was requested with a 503 response code. – Ladadadada Jan 1 '13 at 21:38
  • @Ladadadada I know that solution but I want a better solution for all vhosts to use in a cronjob before proccessing schedule backups – exim Jan 2 '13 at 8:38
  • It's generally a good idea to put all of your requirements in the question to save this back-and-forth extraction process. – Ladadadada Jan 2 '13 at 9:14
  • @Khaled Nice answer, although a 301 redirect to a maintenance page would be killing for your SEO if a crawler would come by at that point. I know it's just an example, but this is just a note to anyone who considers implementing something like this. – Oldskool Jan 2 '13 at 9:55

To easily change many vhosts, add this to all of them (you only need to do this once):

Include maintenance-status.conf

Add something like @Khaled's answer in /etc/apache2/maintenance-on.conf.

Create a symlink at /etc/apache2/maintenance-status.conf pointing at /etc/apache2/maintenance-off.conf, which should be an empty file.

In your cron job, simply repoint that link at the beginning and end and give Apache a graceful restart after each one.

It might be better to do this in PHP (or whatever scripting language you use) and trigger it with a file or a database entry if you can.

  • good solution but I can not use such rewrite commands that khaled said in a conf file. those works in local .htaccess file and pointed to local file (index.html). even if I do it, then how I discard all other rewrite mod commands came from local htaccesses? – exim Jan 2 '13 at 13:15

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