Mongrel users - Nov 2007 - Unable to read anything from request.remote_ip

For some users, request.remote_ip always return nil. According to the
RAILS''s help:

REMOTE_ADDR is the standard but will fail if the user is behind a proxy.
HTTP_CLIENT_IP and/or HTTP_X_FORWARDED_FOR are set by proxies so check
for these before falling back to REMOTE_ADDR. HTTP_X_FORWARDED_FOR may
be a comma- delimited list in the case of multiple chained proxies; the
first is the originating IP.

The system is running on the Mongrel Cluster behind Apache 2.2 with
# mod_proxy, mod_proxy-html, and mod_proxy_balancer
# mod_rewrite
# mod_deflate
# mod_headers
(setup: http://mongrel.rubyforge.org/docs/apache.html)

Would it be due to:

1) IPv6 or Asian IP addresses?
2) mod_proxy or mod_rewrite??
3) ....

Any insight?
-- 
Posted via http://www.ruby-forum.com/.

On Nov 22, 2007 8:36 PM, Booth Developer <lists at ruby-forum.com>
wrote:
> For some users, request.remote_ip always return nil. According to the
> RAILS''s help:
>
> REMOTE_ADDR is the standard but will fail if the user is behind a proxy.
> HTTP_CLIENT_IP and/or HTTP_X_FORWARDED_FOR are set by proxies so check
> for these before falling back to REMOTE_ADDR. HTTP_X_FORWARDED_FOR may
> be a comma- delimited list in the case of multiple chained proxies; the
> first is the originating IP.
>
> The system is running on the Mongrel Cluster behind Apache 2.2 with
> # mod_proxy, mod_proxy-html, and mod_proxy_balancer
> # mod_rewrite
> # mod_deflate
> # mod_headers
> (setup: http://mongrel.rubyforge.org/docs/apache.html)
>
> Would it be due to:
>
> 1) IPv6 or Asian IP addresses?
> 2) mod_proxy or mod_rewrite??
> 3) ....
Most likely the REMOTE_ADDR is not being forwarded to Mongrel from the
mod_proxy*
Best bet would be to checkout the mod_proxy* docs.

  ~Wayne

we can view the REMOTE_ADDR for most access, but not all.

> Most likely the REMOTE_ADDR is not being forwarded to Mongrel from the
> mod_proxy*
> Best bet would be to checkout the mod_proxy* docs.
> 
>   ~Wayne
-- 
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