What is SOCK5 agency, what is HTTP agency

The English full name of proxy server isMessage. Image say: It is the transfer station of network message. When usually, we use network browser to directly go to join other Internet web sites, must send Request signal when getting network message to come to reply, then, opposite side delivers message again with bit way to return.

Proxy server is to be situated between in a server between browser and Web server, after having got it, browser is not to directly take back webpage to Web server and is to send request to proxy server, Request signal will be sent first to proxy server, from proxy server, take back the message needed by browser and deliver the browser that gives you.

, the most of proxy servers have the functionSpace, it will get data store recently constantly, go to it on the memory of machine, if the data that browser asks when it the memory of this machine goes up have existed is also newest, so it not new from Web server access as, and directly deliver the data on memory to the browser of user , can so rise apparently to glance over speed and efficiency. What is more important is that: Proxy Server( proxy server) is a kind of important safe functions offered by Internet link level gateway, its work major when the dialogue layer of the model of the interconnection of open system ( OSI ). Major function has:

1.BreakSelf IP visits to restrict , visits foreign

2. Visit some units or organization internal resources , use educational net inland address part as certain university FTP( prerequisite should represent address when the promise of this resource in visit scope)ItProxy server, may download used in various FTPs

3. Break through the IP blockade of China Telecom: It is visited by restriction that the user of China Telecom has many websites, this kind of restriction is artificial , is not different with Serve for the blockade of address. So when can not visit , may change the proxy server of a foreign countries to try.

4. Rising visit speed: Usual proxy server installs a greater buffering area of hard disk , when have outside message to pass , in at the same time also go to its preservation buffering area, when other users visit again identical message , directly take out message from buffering area , transfer user, visit with raising speed.

5. Hide true IP: Netizen may also hide

SOCK5 proxy server:

Is held by agency pass through with proxy server" the agreement of SOCK4 / 5 represented " to carry out communication( specific agreement content may look over RFC document). SOCK4 agency agreement is the reinforcement for that HTTP represents agreement in other words, it is not only to represent HTTP agreement, is as have outward connection carry out agency, have no agreement restriction. That is said, so long as you join outward, it represents to you, and no matter you use is what agreement, it is maximum to have remedied the deficiency of HTTP agency agreement , makes can not use a lot under the condition that HTTP representsNetworkSoftware may use. ( for instance: The softwares such as OICQ and MSN) the SOCK5 agreement represented again as is former and a edition of to have modified , have increased to support UDP agency and identity the function of verification. It is not" agreement agency", so, it can carry out agency for all connection, no matter use is what agreement.

HTTP agency:

Ditto usesCommunicationWay, HTTP agreement the agreement of exceeding textCommunicateAgreement. Partial local area networks