[Mongrel] Nginx, Mongrel, Proxy and REMOTE_ADDR

Jeremy Kemper jeremy at bitsweat.net
Wed Nov 1 16:25:33 EST 2006

On 11/1/06, Joey Geiger <jgeiger at gmail.com> wrote:
> I'm using a cluster of mongrels behind an apache 1.3 proxy pass. I've
> been passing the request to pen, which in turn balances the cluster of
> mongrels. Now, I'd like to be able to use a different server to send
> the static files created by the rails application, so I tried to
> replace pen with nginx. Everything seems to work fine except the
> environment variable REMOTE_ADDR.
> When I do a <%= request.env["REMOTE_ADDR"] %> with pen balancing, it
> sends in the proper (and expected)
> When nginx is the balancer, the output becomes:,
> the nginx proxy information I have set is:
> proxy_redirect           off;
> proxy_set_header         Host $host;
> proxy_set_header         X-Real-IP $remote_addr;
> proxy_set_header         X-Forwarded-For $proxy_add_x_forwarded_for;
> Just wondering if anyone else has run into this problem, and it's
> possible solution.

Use request.remote_ip which also understands the proxy headers.

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