Re: [squid-users] Multiple http servers behind a single squid

On Fri, 15 Oct 2004, Jim Nachlin wrote:

> Sorry for so basic a question, but I'm trying to set up squid as an httpd
> accelerator for several httpds running on different IP addresses. It should
> be possible, using some combination of
>
> httpd_accel_host virtual

This is for IP based virtual hosting, makign Squid use the IP address of
the http(s)_port. Most likely you are looking for
httpd_accel_uses_host_header which enabled Host header based virtual
hosting.

> httpd_accel_single_host off
>
> etc. I can't find any documentation on how to actually do this, or on how
> the packets will be redirected. If my servers are now 1.2.3.4 and 1.2.3.5,
> will the machine hosting squid now have those addresses, or if not, how will
> the requests from clients go to squid.

All the httpd_accel_* directives is about (with httpd_accel_single_host
off) is how Squid should reconstruct the requested URL. The actual
forwarding of the URL is then identical to that of normal proxying.

   httpd_accel_host Default web site

   httpd_accel_uses_host_header Domain based virtual host support

   httpd_accel_single_host off (required)

   httpd_accel_with_proxy on (recommended for HTTP compliance)

   http_access should limit access to your web sites only, to avoid direct
or indirect proxy abuse.

1. http_access
2. Redirectors, allowing the URLs to be rewritten if required.
3. Cache lookup
4. Path selection via cache_peer, always/never_direct etc.
5. Actual forwarding to the selected server, either directly to the host
name of the URL, or via the selected peer.

Regards
Henrik
Received on Fri Oct 15 2004 - 15:27:23 MDT