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dw.emplod
Asked: 2009-06-24 14:15:45 +0800 CST

mod_rewrite to proxy multiple servers

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I'm running CentOS on 3 servers. Server A runs my apache web server. Server B and C run other servers on different ports. I'm trying to get htt://serverA/math/ to proxy to htt://serverB:8765/ but I'm getting errors I can't seem to fix. Here is my entry into the httpd.conf file:

RewriteEngine On
RewriteRule ^math/(.*)$ http://serverB:8765/$1 [P]

I get the following error in my log:

[error] [client xx.xx.xx.xx] File does not exist: /var/www/html/math

If I change the httpd.conf to this:

RewriteEngine On
RewriteRule ^/(.*)$ http://serverB:8765/$1 [P]

All traffic to server A is redirected properly to server B, so I know that mod_rewrite and mod_proxy are working.

Can anyone point me in the right direction? Thanks.

apache-2.2 mod-rewrite

3 Answers

  1. I think your rule should be:

    RewriteRule ^/math/(.*)$ http://serverB:8765/$1 [P]

    Since it's not matched, you get the error messages

    • 2

  2. katriel is right but you could also use the ProxyPass/ProxyPassReverse directive. See this. It's design to do what you want in a much simple way.
    Example:

    ProxyPass /math/ http://serverB:8765/
ProxyPassReverse /math/ http://serverB:8765/
    • 0

  3. radius is right--you're better off using the actual proxy directives. Something like this should work:

    <Location /math>
    ProxyPass http://serverB:8765/
    ProxyPassReverse http://serverB:8765/
</Location>

    The error that you're getting may be because you're proxying ".../math/" but not ".../math".

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