Re: [squid-users] An IP with multiple domains

Chyi wrote:
> How do I setup squid to point to an IP which have multiple domains?
>
> The scenario as follows:
>
> 1. www3.mainsite.com proxied to www.mainsite.com hosted on a dedicated
> ip. (success)
> 2. www3.newsite.com proxied to www.newsite.com which hosted on a
> shared ip. (failed)

I really suggest getting away form that www3 subdomain thing. Squid is
designed to work best when the domain can be passed through to the
origin server without having to change things.

It is by far easier and less complex to maintain when the backend server
knows exactly what its providing to the public.

> 3. All dns is externally managed at www.everydns.net

You are aware of their pending merger and the upcoming alterations?

>
> How do i solve this? Am using acce vhost at the moment and very new to
> linux and squid.
>
> Thanks.
> C

Setup the squid according to the 'virtual hosting' reverse proxy example
here. http://wiki.squid-cache.org/ConfigExamples/Reverse/VirtualHosting

You need a cache_peer entry per backend server.

If one server handles multiple of the domains, just list them all
together in the one dstdomain ACL used for that server.

If you can drop the www3 alternatives, the above alone is enough to get
a strong system running for any website. Otherwise you are stuck with a
complex setup, usually involving url-rewriters, which introduce all
sorts of limits on what code the website authors can use.

Amos

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