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/. _______________________________________________ Mongrel-users mailing list Mongrel-users@rubyforge.org http://rubyforge.org/mailman/listinfo/mongrel-users