Proxy Server Novice Application guide and use tutorial _ Proxy Server

First of all, I would like to explain that we are here to talk about the proxy, is the proxy server, English name is proxy server. Generally speaking, for us these ordinary netizen its function has three (aside some advanced usefulness not to talk about, because we may not use):

One is through it, we can visit some of the sites that can not normally go. Don't believe you can open your browser and enter the "www.geocities.com" url right away. How? Do not have to look at the browser here to wait, not your network speed is slow, it is not without this site, but you can not access it (there are many of these types of Web site OH). Why can't I get access? The problem ... There are many kinds of statements, most of which are said to be limited to access to the domestic network, so some sites can not go. How can I access these sites? After reading this article you will know!

The second is through it to speed up our browsing some Web site speed. Sometimes we visit some foreign or Hong Kong and Taiwan websites, as slow as a snail. But as long as you choose the right proxy server, speed can be promoted, and sometimes these speed of ascension is very obvious oh!

The third is to connect the Internet and the intranet as firewall (firewall): Because all intranet users access the outside through the proxy server, mapping only to an IP address, so the outside can not directly access the intranet, and can set IP address filtering, Restrict the internal network's access to the outside; In addition, two intranet networks that are not interconnected can also exchange information through a Third-party proxy server.

If you have seen the above in the past, then it seems necessary to try using a proxy server.
Why does using a proxy server allow us to access some sites that are otherwise inaccessible? Why is it quicker to browse foreign websites after using it? Image of the said: Proxy Server is a transit point for network information. In general, we use a Web browser directly to connect to other Internet sites to obtain network information, we have to send a request signal to get answers, and then the other side of the information sent back in bit mode.

Proxy server is a server between the browser and the Web server, with it, the browser is not directly to the Web server to retrieve the page but to the proxy server to send a request, the request signal will be sent first to the proxy server, The proxy server retrieves the information that the browser needs and sends it to your browser. Also, most proxy servers have buffering capabilities, it's like a big cache, it has a lot of storage space, it keeps storing the new data on its native memory, if the data requested by the browser already exists and is up to date on its native memory, Instead of getting data back from the Web server, it sends data directly from the storage to the user's browser, which can significantly improve browsing speed and efficiency (speed varies depending on the location of the proxy server and network transmission), And most of the foreign network is not restricted access to the site or the different restrictions, so we have a great opportunity to access the proxy server to those who could not go to the site.

More importantly, Proxy Server (proxy) is an important security feature provided by Internet link-level gateways, and it works primarily in the dialogue layer of the Open Systems Interconnection (OSI) model.
Proxy is so useful to us, so how on earth can we find these servers on the grand network? This depends on some of the software specifically looking for proxy, the following is the introduction of several commonly used software:

I. Proxy Hunter
This is the proxy search software of Big Brother, since the 1.0 launched, the national netizens love, the current version is 3.0, what is the characteristics of this proxy hunter? The speed of the search is the first of similar software, with the function of predicting the completion time of the search task, in addition to the Education network, Do not limit the search IP address range, while supporting HTTP and SOCKS proxy search and verification, with the search for proxy address management, use, automatic scheduling, and other advanced functions. When there is a lot of proxy, do not know which to use, then you need automatic scheduling function, the network software proxy set to the native IP (127.0.0.1), port 8080, and then in the proxy Hunter search results list will be used in the right mouse button set to "use" (Enable), so that proxy hunter will be based on the speed of each proxy, choose one or several use, very convenient bar.

Two. Proxy Now series
This is developed by the author of the Web site update Now, which is made up of HTTP proxy now, SOCKS proxy now, and FTP proxy now, as the name suggests, the function is to search for the above three types of proxy respectively, It would be nice if you could put it together in one software, the advantages of the Proxy Now series is absolutely unlimited search IP range, but did not register to enter when there will be delay, but only a few seconds, no big harm, search speed can also be a good, the disadvantage is a single function, can be set less, the verification is not so perfect.

Three. SOCKS Cat
This is a special search for socks proxy, also does not restrict the search IP address range, the speed is relatively fast, according to the author, its speed is only slower than proxy hunter, but to verify the SOCKS proxy to do well, while supporting SOCKS4, SOCKS5 Proxy Search and verification, support set up for verification of the Web page, set the maximum number of connections, etc., after actual use, the effect is good, if you can add to the HTTP proxy search and verification function may be better.

Summary: The three to proxy Hunter is better, but also can not be a tree hanging, should be specific analysis, choose a suitable to use.

Of course, some search experience should also be mastered, search proxy, such as in a haystack, do not grasp the essentials, but to eat a big loss. The large-scale search, the effect is good, but the cost is high, time-consuming, is not worth recommending. After practice, the local area concussion IP search method is better. For example, you have a large ISP or ICP, assuming that its IP address is 202.96.123.123, then take the total 1275 (255x5) as the range of shocks, calculate the scope of the search should be attempted 202.96.121.0 to 202.96.125.255, good luck. ! There is also a longer connection time, and note that the following ports are added 8080 (http) 3128 (HTTP) 1080 (HTTP) (SOCKS) so that there is no slip through the internet.

Next, we will take proxyhunter as an example to explain how to search for proxy.

When you fill out the task, return to the main screen, press the Blue Start button, so Proxyhunter will start the search agent. The thing you need to do now is stare at the search results bar and wait patiently.
Server address: What appears here is the IP of the proxy server you are searching for.
Port: This is the port it uses.
Type: This is the type of proxy.
Validation status: This is most important, its state is divided into several, the above figure is listed in several of these states, usually if you successfully search this proxy, it will appear as "free", then you can use the proxy directly; Basically you can delete this proxy, unless you have the ability to crack the password ... If other states such as "Connection timeout" or "Connection failure" are displayed, your current network may be busy, or the proxy may be temporarily closed, and you can verify it once in a while.
Time characteristics: This number affects the speed of this proxy, it shows the time when your machine is connected to proxy, if you have multiple proxy for you to choose from, then choose a relatively small one bar, the smaller the connection time on behalf of the porxy faster.

After the last step of the search, presumably you have searched a few "free" properties of the proxy it? Congratulations Hi ~
So how on earth can we use these proxy? In fact, it is very simple, most software has some software attributes, such as "Setting" and "Preferences" and so on. And in these options there is usually a "proxy" option, you only need to fill in the "proxy" of your search for the proxy IP port, then you can use this proxy. If the software is Chinese then it is more simple, as long as the "set proxy Server" Inside to fill in the OK.

Take the browser IE6 as an example:
1, open "tools" inside the "Internet Options."
2, click the "Connection" box.
3, if you use dial-up Internet, then choose "Settings". If you are using the LAN, then select LAN Settings.
4, in the inside there is a "proxy server" this setting. First click "Use Proxy Server", and then the "address" to fill in the proxy IP, in the "port" to fill the mouth, OK! Done!