44.11. Connecting to Other Proxies
Instead of retrieving requested web pages directly, Squid can be configured to connect to another proxy server instead and forward some or all requests to it. This feature is useful if your organization has one proxy for each department and a master cache for the entire network, and you want to have all department proxies query the master for requests that they cannot serve from their own caches. It may also be necessary if your ISP runs a proxy server and you want to set up Squid for your home network as well, yet still make use of the ISP's cache.
By making use of ACLs to categorize requests, you can set up Squid to forward only some requests to another proxy while handling the rest normally. For example, ...
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