I believe that the Rewrite rule matches only the document root portion of the URL.
So for a request http://a.blah.com/mypath/mypage.html All you will get to match on is this much /mypath/mypage.html To do what you are trying to do, I believe you'll need to use some RewriteCond directives, something like (read: I'm just doing this from memory, you'll need to test)... RewriteCond %{HTTP_HOST} ^b RewriteRule ^/(.*) http://b.blah.com:4374/$1 [P,L] Hope that helps or points you in the right direction. Quoting Brian Hirt ([EMAIL PROTECTED]): > > I have a question about setting up a proxy for a mod_perl server. I've > got a simple proxy set up that listens on port 80 and proxies to the > mod_perl server running on a different port. > > For example. http://blah.blah.com/anything/ will go to > http://blah.blah.com:4374/anything/ and the rules to do that are below. > > RewriteEngine on > RewriteLogLevel 0 > RewriteRule ^/(.*)$ http://blah.blah.com:4374/$1 [P,L] > NoCache * > ProxyPassReverse / http://blah.blah.com/ > > This is fine when you are proxying a single machine name, but how would > i set up a proxy that would send http://a.blah.com -> > http://a.blah.com:4374, http://b.blah.com -> http://b.blah.com:4374, > etc etc etc. There are about 40 different names that need to be > proxied, and it's important that the destination name is the same as the > source machine name. > > It seems like something like > RewriteRule ^http://([^.]+).blah.com/(.*)$ http://$1.blah.com:4374/$2 > [P,L] > > should work, but it doesn't. > > -- > Brian Hirt <[EMAIL PROTECTED]>