Server-Side Protocols
[Squid Components]

Collaboration diagram for Server-Side Protocols:

Modules
	HTTP
	Server-Side FTP API
	WAIS
	Passthru
	ICP
	Server-Side Gopher API
	Server-Side WHOIS API
	Server-Side SSL API

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Detailed Description

These routines are responsible for forwarding cache misses to other servers, depending on the protocol. Cache misses may be forwarded to either origin servers, or other proxy caches. All requests to other proxies are sent as HTTP requests. All requests to origin-server are sent in that servers protocol.

Wais and Gopher don't receive much attention because they comprise a relatively insignificant portion of Internet traffic.