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How to route Apache ProxyPass configuration through another proxy server? (Proxy to proxy)


Sometimes we do configure forward proxy (ex: Squid Proxy) behind Apache server. This page help us to understand how to configure ProxyPass configurations within Apache httpd.conf file.

Incase if we want to route our requests through proxy from within Apache, then you need to add ProxyRemote under your VirtualHost configurations as shown below:

<VirtualHost example.com:443>
    SSLEngine on
       [cert file config]
    ServerName example.com
    ...
    ...
    ...
    ProxyRemote * http://myproxyhost.com:3128
    ProxyPass /myapp/ http://testapp.com/myapp/
</VirtualHost>

As per the Apache documentation, ProxyRemote defines remote proxies to this proxy. The syntax is:

ProxyRemote match remote-server

match is either the name of a URL-scheme that the remote server supports, or a partial URL for which the remote server should be used, or * to indicate the server should be contacted for all requests. remote-server is a partial URL for the remote server.

Here is some examples:

Example
ProxyRemote "http://goodguys.example.com/" "http://mirrorguys.example.com:8000"

ProxyRemote "*" "http://cleverproxy.localdomain"

ProxyRemote "ftp" "http://ftpproxy.mydomain:8080"

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About Author

I'm Nataraja Gootooru, programmer by profession and passionate about technologies. All examples given here are as simple as possible to help beginners. The source code is compiled and tested in my dev environment.

If you come across any mistakes or bugs, please email me to [email protected].

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Reference: Java™ Platform Standard Ed. 7 - API Specification | Java™ Platform Standard Ed. 8 - API Specification | Java is registered trademark of Oracle.
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