Apache2: mod_rewrite with circular rewriting

Question

I want to load a private site for an specific subdomain without creating a new virtual host (for not creating and repeating the virtual host configuration), in the following way:

• The user writes priv.mydomain.com
• The mod_rewrite appends /priv to the URL without redirection.
• An Alias directive gets /priv and loads /other_system_path/private
• The private page is loaded but the user sees no changes in the URL.

My current config is as follows (inside the proper virtual host):

Alias /priv /other_system_path/private

RewriteEngine on
RewriteCond %{HTTP_HOST} ^priv\.mydomain\.com$
RewriteRule (.*) /priv [PT]

The PT flag is, if I'm not wrong, for repeating the process of URL mapping, which turns into being got for the RewriteRule again, since priv. remains in the URL.

How can I achieve this?

Answer 1

The PT flag is, if I'm not wrong, for repeating the process of URL mapping, which turns into being got for the RewriteRule again, since priv. remains in the URL

You can skip the rule for the subrequests by adding the following condition

RewriteCond %{IS_SUBREQ} false

According to manual

IS_SUBREQ

Will contain the text "true" if the request currently being processed is a sub-request, "false" otherwise. Sub-requests may be generated by modules that need to resolve additional files or URIs in order to complete their tasks.

ps: and you need, as I think, RewriteRule ^/?(.*)$ /priv/$1 [PT] , so that any request will be transformed to the correct one, not just to the 'root' of the alias.