how to rewrite or redirect a subdomain?

[Igor Sysoev]

On Wed, Aug 08, 2007 at 11:25:36PM +0800, Steve Chu wrote:

> That's really awesome, Thanks.
> 
> We have thousands of xxx subdomains, here's our configure:
> 
> server {
>         server_name  _  *.yyy.example.com;
> 
>         if ($http_host ~ "^(.+?)\.yyy\.example\.com") {
>             set  $host  $1;
>         }
> 
>         rewrite  ^   http://yyy.example.com/$host;
> }
> 
> The "^(.+?)\." calls a dead loop, because it meet xxx.yyy.example.com,
> and redirect xxx.yyy.example.com to yyy.example.com/xxx, then redirect
> yyy.example.com/xxx to
> yyy.example.com/yyy, then to yyy.example.com/yyy... it seems a mistake.

Request to yyy.example.com should never go to this server - it should be
handled by first server:

     server {
         server_name  yyy.example.com;
         ...
     }

> Does server_name  "*.yyy.example.com" match "yyy.example.com"?

No, ".yyy.example.com" matches "yyy.example.com".

> On 8/8/07, Igor Sysoev <is at rambler-co.ru> wrote:
> > On Wed, Aug 08, 2007 at 10:16:44PM +0800, Steve Chu wrote:
> >
> > > I digged the nginx rewrite module, found that it is hard to
> > > rewrite/redirect a subdomain, here's my situation:
> > > I wanna rewrite/redirect "http://xxx.yyy.example.com" to
> > > "http://yyy.example.com/xxx".
> > > I found there's a Variables $host, but how to split it to get "xxx",
> > > then use rewrite module?
> > > any idea?
> >
> >      server {
> >          server_name  yyy.example.com;
> >          ...
> >      }
> >
> >      server {
> >          server_name  xxx.yyy.example.com  *.www.example.com;
> >
> >          if ($http_host ~ "^(.+?)\.") {
> >              set  $host  $1;
> >          }
> >
> >          rewrite  ^   http://yyy.example.com/$host;
> >      }
> >
> >
> > --
> > Igor Sysoev
> > http://sysoev.ru/en/
> >
> >
> 
> 
> -- 
> Steve Chu
> http://stvchu.org
> 

-- 
Igor Sysoev
http://sysoev.ru/en/