Proxy Server Search and Validation analysis _ Proxy Server

First, the server commonly used ports
Each host (hosts) on the Internet has a unique address (IP), but the same host may provide more than one service, such as the FTP service, the WWW service, and so on, so that each service occupies one port of that host.

The common ports used by proxy servers are:

HTTP Proxy: 80/8080/3128/8081/9080

Socks Agent: 1080

FTP Agent: 21

Telnet Agent: 23

Second, how to search proxy server
From the above, we already know that to find a proxy server is to find the server's IP address, service type and the port used, we can use the "Agent Hunter proxy Hunter" software to search.
A brief introduction to the use of Agent Hunter:

1, start the Agent Hunter, in the upper left "IP address range" input starting and ending address, for example, you want to find 210.62.0.0-->210.63.0.0 this IP section of the proxy server, in the left column input: 210.62.0.0, in the right column input: 10.63.0.0. Then click the Add Address button, and the address will be added to the search task.

2, select the port range. The Agent Hunter supports the search for HTTP proxies and SOCKS proxies, and you can join the two common ports listed above. Add method: Enter "8080" in the first blank column of "Port range", enter "8080" in the second column, select "HTTP" type, then click on [Add Port] button, you will find "8080|8080|" in the port list. HTTP ". Follow this method and then add the following ports: "80|80| HTTP "," 3128|3128| HTTP "," 8081|8081| HTTP "," 9080|9080| HTTP "," 1080|1080| SOCKS ".

3, click [Parameter Setting] button, the {Search verification settings} 's "Connection timeout" to 6, "validation Timeout" to 30, "concurrent connection number" changed to 100;{verify settings} "Connection Timeout" to 45, "verification timeout" to 90. These numeric settings are too small to cause the proxy address to be incomplete, too large to waste time = money. Determined after the return.

4, click the [Start Search] button, a Find proxy server will be displayed in the bottom left of the list, only the verification status shown as "Free x seconds" is available to use the toll-free proxy server.

Iii. How to authenticate a proxy server
Proxy server can be said to be not very stable, some yesterday with a good, today can not be used, or to password, in order to find out whether the agent or free, it is necessary to use the "Agent Hunter" verification function. There are 8 buttons at the bottom right of the Agent Hunter, the first is "test", the second is "check all", we can verify all the agents in the list can be used, or after selecting one or more proxy addresses in the list, click [Verify] to verify that the agents are available. After the verification, click the title of the list "validation status", you can put the available proxy servers in the front of the list, easy to find.

Iv. How to export and import results
If you find a lot of proxy servers and want to give them to a friend, you can click the [Export Results] button, save the selected or all proxy addresses in a text file with a. txt extension (use the Agent Hunter version 3.0 to be aware that at least the "type" under "Content setting" is also selected and exported together) , and then pass this file on to your friend. After your friend gets this file, you can use the Import Results button to introduce these addresses into his list of "Agent Hunters" (use the Agent Hunter version 3.0 to note that when you use the import result, when you eject the Select File dialog box, select the bottom "avoid import duplicates". will not cause duplicate addresses to appear in the list.

If you find a proxy address on the Internet, how can you import these addresses into the "Agent Hunter"? The method is as follows:

1, open a text editor (such as the Notepad with Windows).

2, in this format "address: port @ type" input address, each address exclusive line. Note: the words ":" and "@" are all punctuation marks in English and cannot be used in Chinese punctuation. For a type that is @http, it can be omitted as "address: port" without having to write the @http behind it. Such as:

210.77.125.90:1080@socks5
210.62.225.8:3128
200.77.125.146:21@ftp
61.173.65.126:3128
211.78.26.35:80
132.162.17.194:21@ftp
202.104.141.130:80
218.63.120.31:8080
61.78.60.10:1080@socks5

3, this file to take any name to save, such as Proxy.txt.

4. Start Agent Hunter, select "Import Results", find the Proxy.txt file you just edited, and import it (remember to select "Avoid importing Duplicates").

5, select the results just imported, click [Test], can be used to clear.

Five or one tips
In search of proxy server, the input of IP range is very important, in general, set proxy server more places are some economically developed areas, you can find the national provinces and Cities IP address, and then targeted search.