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I just installed and partially configured nginx on a dedicated server of mine. But I've got some trouble understanding the regexp. I would like to make nginx redirect www.mydomain.com/forum/ AND www.mydomain.com/forum (note the missing trailing slash; case-insensitive; same applies for "forums" instead of "forum") to forum.mydomain.com/. This is what I came up with:

location ~* ^/(forum|forums) {
rewrite ^/(.*)/(.*)$ http://forum.mydomain.com/$2? permanent;
}

... but for some reason it works with trailing slashes only. :-/

Please help me! Thanks in advance!

share|improve this question
up vote 1 down vote accepted

Try:

location ~* ^/(forum|forums)/? {
   rewrite ^/(.*)/(.*)$ http://forum.mydomain.com/$2? permanent;
}

EDIT:

Ok the location seems to be working, the problem is probably the rewrite line.

location ~* ^/forums?/?$ {
   rewrite /forums?/?(.*) http://forum.mydomain.com/$1 permanent;
}

Tested the regex on pcretest and it captured it right, see if it works.

share|improve this answer
    
Thanks for your reply. However this didn't fix the problem :-( – Oliver A. Mar 10 '11 at 23:37
    
Can you provide example URLS (original and how it should end) – coredump Mar 10 '11 at 23:42
    
See my initial post: hxxp://www.mydomain.com/forum (please note the missing trailing slash) -> hxxp://forum.mydomain.com/, but still hxxp://www.mydomain.com/forum/foo.bar?a=b -> hxxp://forum.mydomain.com/foo.bar?a=b (replace xx with tt, trying to bypass serverfault.com's limitations here :-P) – Oliver A. Mar 10 '11 at 23:45
    
Thanks a lot!!! location ~* ^/(forum|forums)?/?$ { rewrite /(.*)?/?(.*) http://forum.mydomain.com/$2 permanent; } works like a charm! – Oliver A. Mar 11 '11 at 0:02
    
@oliver wait, what? :P – coredump Mar 11 '11 at 0:04

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