Apache ProxyPass to Rack gives 404 error

Question

(for simplicity I changed IPs of Apache server to 1.1.1.1 and Gollum server to 6.6.6.6)

I'm trying to serve a Gollum wiki with rack through Apache (since it has SSL set up properly and I'm currently only testing the Gollum wiki). So I setup Apache to ProxyPass (config below).

The problem is that the rack server seems to be working fine when I access it directly via a curl from my proxy machine:

1.1.1.1 - - [05/Dec/2013 06:20:25] "GET /docs/Home HTTP/1.1" 200 6467 0.2135

but I get a 404 whenever I try to use my browser. Rackup says:

6.6.6.6 - - [05/Dec/2013 06:20:00] "GET /docs/Home HTTP/1.1" 404 - 0.0006

Absurdly, when I use the exact same headers as my browser sends (see below) via telnet from the proxy machine (1.1.1.1) the request is successful:

6.6.6.6 - - [05/Dec/2013 06:19:19] "GET /docs/Home HTTP/1.1" 200 6467 0.2759

I have no idea what I'm doing wrong and why (and how?!) rack differentiates between two different requests from the same machine. Help please?

(Using Apache/2.2.15 on RHEL 5 and Rack 1.2 (Release: 1.5) on ruby 1.9.2p320, RHEL 6)

EDIT Apparently this is a problem with WEBrick, since when I switch to Thin it worked. Would still like your insights...

Apache config:

<VirtualHost 1.1.1.1:80>

    ServerName testserver.example.org
    ServerAlias testserver.example.org
    ServerAdmin webmaster@example.org

    DocumentRoot /path/to/my/docs
    DirectoryIndex index.html index.htm index.php

    # ...

    <Location /docs/>
        ProxyPass http://6.6.6.6:8080/docs/

        # also tried:
        # ProxyPass http://rackserver.example.org:8080/docs/

        # and:
        # SetEnv force-proxy-request-1.0 1
        # SetEnv proxy-nokeepalive 1

    </Location>

</VirtualHost>

Telnetted request:

<1>root@testserver:~$ telnet rackserver.example.org 8080
Trying 6.6.6.6...
Connected to rackserver.example.org.
Escape character is '^]'.
GET /docs/Home HTTP/1.1
ACCEPT: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
ACCEPT_ENCODING: gzip,deflate,sdch
ACCEPT_LANGUAGE: en-US,en;q=0.8,he;q=0.6
CACHE_CONTROL: max-age=0
COOKIE: SESS...; has_js=1
HOST: rackserver.example.org:8080
USER_AGENT: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/31.0.1650.57 Safari/537.36
VERSION: HTTP/1.1
X_FORWARDED_FOR: 6.6.6.6
X_FORWARDED_HOST: apacheserver.example.org
X_FORWARDED_SERVER: testserver.example.org

I verified that the rack up prints the same output for the normal browser request and the telnetted request using the code from this answer.

Apache ProxyPass to Rack gives 404 error

0 Answers0