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I'm trying to redirect all URLs past the "/" of my domain to an old.mysite.com version, but leave the mysite.com itself alone.

For example, "mysite.com" -> "mysite.com", but "mysite.com/some-url" -> "old.mysite.com/some-url". Here's what I have now:

RewriteEngine On
RewriteCond %{REQUEST_URI} ^/(.+)$
RewriteRule /(.*) http://archived.example.com/$1

But it's redirecting "mysite.com" -> "old.mysite.com". How can I modify this so that the core domain doesn't get redirected, but only when there are URL bits past the ".com/" so to speak?

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1 Answer 1

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The RewriteCond %{REQUEST_URI} ^/(.+)$ matches all characters after the /

(.+) is a regular expression that matches any character.

RewriteEngine On
RewriteCond %{REQUEST_URI} ^/[a-zA-Z0-9\/-]+$
RewriteRule /(.*) http://archived.example.com/$1

The above might do it, but I'm not very good with regular expressions.

[a-zA-Z0-9\/-]+ will match a series of any of the characters in the brackets following the trailing /.

I use RegExLib as my cheat-sheet. It'll also let you test regular expressions against a source (to see what matches).

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  • Nathan - Thanks for the response. From my understanding, (.+) matches any character (but must be at least 1 character). My thinking was that I didn't want to redirect to archived.example.com unless there were characters after the slash, because I wanted just "example.com" to stay "example.com" if that makes sense. Thanks again for helping...
    – rpheath
    Commented Dec 12, 2011 at 0:53
  • It makes perfect sense. And I've confused myself. Will revisit a bit later.
    – Nathan
    Commented Dec 12, 2011 at 0:59
  • Nathan, you steered me on the right track by pointing out that I was matching everything (including spaces). I fixed my regex to read: RewriteCond %{REQUEST_URI} ^/[a-zA-Z0-9\/-]+$ and all is working now. Thanks!
    – rpheath
    Commented Dec 12, 2011 at 1:12
  • That's great! I learned a little something, too! I've edited my answer, above, with your contribution, so maybe if someone else comes along it'll be helpful! I thought about including [a-zA-Z0-9\/-]+, but what confused me was whether we should be matching the entire URL or only what followed the trailing /. If I'd read the documentation more closely, it might have helped! Glad we got it figured out!
    – Nathan
    Commented Dec 12, 2011 at 3:39

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