Thank you. Unfortunately, this is on a shared hosting server, and I don't have access to the config files, nor the re-write log (if there is one). I figured out after I posted my question that I needed to exclude the /demo/ directory, since that's where this is. I tried the regex you suggested -- it makes more sense. But I still get the error. If I add the RewriteCond for REQUEST_URI, I no longer get the error, but no rewrite, either. I must say, most of what I do with mod_rewrite is MSMD. I don't really understand how it works, except in the most general terms. It would be great if there was something that explained what exactly mod_rewrite does, step by step, but all the tutorials I've been able to find are really just recipes for doing various things, without really explaining what's going on. From what I understand, the rule as you wrote it goes: > RewriteCond %{REQUEST_URI} !^/demo/ "If REQUEST_URI does not begin with /demo/" > RewriteCond %{HTTP_COOKIE} phn_demo=([^;]+) "...and HTTP_COOKIE contains 'phn_demo=' followed by a value" > RewriteRule ^(.*) /%1/$1 [L] "...rewrite the request to point to directory %1 (the value from RewriteCond) below this directory, followed by whatever's left of the URI." Isn't that correct? It seems pretty straightforward to me, but for some reason doesn't work. -- Alan Little Holotech Enterprises On Thursday, March 9, 2006, 11:38:34 AM, you wrote: > Alan Little wrote: >> I have a rule in >> doc root for the domain > Why don't you use the Rules in per-server context (httpd.conf), many > things are a lot easier there, because there is no internal redirect and > the regEx is only compiled once at startup and not per each request. > What can you find in your rewrite.log? Or are the rules not processed? >> RewriteCond %{HTTP_COOKIE} phn_demo=(.*) >> RewriteRule (.*) /demo/%1/$1 > If you're using the rule in per-dir context, you must exclude the folder > /demo/ as you did for the other rule. May be you must separate the group > from other cookies, too? > RewriteEngine on > RewriteCond %{REQUEST_URI} !^/demo/ > RewriteCond %{HTTP_COOKIE} phn_demo=([^;]+) > RewriteRule ^(.*) /demo/%1/$1 [L] --------------------------------------------------------------------- The official User-To-User support forum of the Apache HTTP Server Project. See <URL:http://httpd.apache.org/userslist.html> for more info. To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx