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What would be http/ftp proxy failover solutions using open source tools?

I have one squid proxy server on virtual Linux server and need to make a failover server on another one. Proxy must be configurable by end users by manually entering DNS name and port.

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Do you need automatic failover, or are you simply looking for a way to replicate your existing configuration? 'Proxy must be configurable by end users' seems to imply that you only need manual failover? –  Murali Suriar May 15 '09 at 13:20
I need automatic failover. 'Proxy must be configurable by end users' means, that I can not use autodetection of proxy server. –  Kazimieras Aliulis May 15 '09 at 17:33

3 Answers 3

up vote 3 down vote accepted

It sounds like you need Linux-HA.

Project Goal

Provide a high availability (clustering) solution for Linux which promotes reliability, availability, and serviceability (RAS) through a community development effort.

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Here I run 2 squid, linked through heartbeat : if one fail, the other takes hand. Easy to maintain.

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proxy.pac? A user can configure it, and if you serve it right, you can use it for fail-over.


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This solution does not fulfill requirement: "Proxy must be configurable by end users by manually entering DNS name and port." –  Kazimieras Aliulis Jun 1 '09 at 9:05
Sorry - presumed your users would be able to enter the proxy.pac line instead (this is generally in the same place as they would enter a DNS name and port). If this is a step too far, you may be looking at the route of using VRRP or similar to provide HA capability. –  Tom Newton Jun 1 '09 at 12:45

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