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Rails remote IP address from behind a proxy

Since I have a cluster of 3 mongrels running behind lighttpd the usualy request.env['REMOTE_ADDR'] wasn’t working …

what ended up working was request.env['HTTP_X_FORWARDED_FOR'] to get the users IP

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This entry was posted on Tuesday, March 31st, 2009 at 3:54 pm and is filed under Uncategorized. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

One Response to “Rails remote IP address from behind a proxy”

  1. Birm Says:
    August 18th, 2009 at 12:10 am

    This works perfectly for me on Slicehost. One small change I made to make localhost a bit more friendly was:

    request.env['HTTP_X_FORWARDED_FOR'] || request.remote_ip()

    Otherwise, localhost returns null.

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