Introduction to deploying and Tuning 2.0 Squid Services

Squid is a relatively well-known agent software, it can not only run on Linux can also run on Windows and Unix
, its technology is already very mature. The current users of Squid are also very extensive. Squid and Linux under its
Its agent software, such as Apache, Socks, TIS fwtk compared to the download installation is simple, simple and flexible configuration, support slow
and multiple protocols.
Squid is used a lot because of its caching function. Squid cache not only saves valuable bandwidth resources, but also
You can also significantly reduce the server I/O. From an economic standpoint, it is an integral part of many Web site architectures.
Squid can not only do the forward proxy, but also can do reverse proxy. When acting as a forward agent, the Squid is followed by a guest
Customers, the client wants to surf the Internet through Squid. When a user (client) wants to request a home page, it is to Squid
Make a request, squid to ask for it, then squid connect to the site that the user wants to request and request the home page, and then
Pass the page to the user while keeping a backup, and when other users request the same page, Squid saves the backup
Immediately pass to the user, making the user feel very fast. When using a forward proxy, the client needs to do some setup to
Now, that is, usually we set in the IE option of the agent. And the reverse proxy is, Squid behind a site
Server, when the client requests the site, it sends the request to the squid, then squid to process the user's request
Action. Let's borrow a graph from the network to see the forward proxy.

About the particularly easy distinction: the forward agent, squid behind the client, the client on the Internet to go through Squid. Reverse
Agent, squid behind is the server, the server returned to the user data need to go Squid.
You might ask, when do you need to configure a forward proxy, and when to configure a reverse proxy? My point is,
Positive agents used in the enterprise's office environment, employees need to access the Internet through Squid agent to the Internet, which can save the network
Bandwidth resources. And the reverse proxy is used to build the site static items (images, HTML, streaming media, JS, CSS, etc.) cache server,
It is used in the Web site schema.

Introduction to deploying and Tuning 2.0 Squid Services