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I'm using a server which allows me to create and redirect subdomains. However, it is reflected on the address URL bar.

What I want is to keep subdomain.domain.com as base URL for the subdirectories inside domain.com/subdirectory/

Searching on the internet I always come up with these lines for .htaccess, which I think it does the redirection, but not the masking.

RewriteEngine on
RewriteBase /

RewriteCond %{HTTP_HOST} ^sub\.domain\.com$ [NC] 
RewriteCond %{REQUEST_URI} !^/sub
RewriteRule ^(.*)$ sub/$1 [L]

edit

Tried this, but didn't work

RewriteEngine  on
RewriteBase    /subdirectory/
RewriteRule    ^(.*)$  http://subdomain.domain.com/$1  [P]
ProxyPassReverse /subdirectory/ http://subdomain.domain.com/
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What you are asking for is solved using mod_proxy with mod_redirect. Research this Apache documentation page: http://httpd.apache.org/docs/current/rewrite/proxy.html

I do warn you that you have to be careful when configuring your Apache to mod_proxy. Here is the Apache documentation on that. There is a strong warning on the top of the page. But do not let that scare you. Just be careful and thorough.

Having said that, I used to use this feature A LOT! If configured safely, it works extremely well, is seamless, and highly reliable.

RewriteEngine on

RewriteCond %{REQUEST_URI} ^/sub [NC]
RewriteRule .* sub.domain.com [P,L]

You do not need RewriteBase unless it is something other than the default.

I think this example will work for you. If not, I will change the example and we will try again. To test, use [R,L] instead of [P,L].

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  • Ok, but my subdomain points to a subdirectory inside my local public_html. Is it the same? – whitenoisedb Jun 24 '14 at 21:15
  • Exactly the same. Instead of R (redirect) you use P (proxy). You are not using R for redirect in your example above. It really should be [R,L]. I think that is okay because redirect is assumed. However, in the new case, you would replace the R with P to proxy instead of redirect [P,L]. It is a slick as snot option if mod_proxy is configured to be safe. – closetnoc Jun 24 '14 at 21:20
  • But I need to proxy the folder to -> the subdomain, not the subdomain to the folder. I think that the example above is not what I'm looking for. – whitenoisedb Jun 24 '14 at 21:22
  • Oh yeah! I messed that. Sorry. Hold on. I will update the answer with an example that might work better. – closetnoc Jun 24 '14 at 21:29
  • Thanks for your time! I've edited my question with another try – whitenoisedb Jun 24 '14 at 21:33

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