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Proxy

A proxy can also be referred to as proxy server and application level gateway. It's a kind of technology developed for the use of various business organizations and individuals when it involves their Internet access needs and network. With as a computer that 
 acts as a between the computers that make-up the local network of a business and the Net or any other large-scale network this, a proxy acts. 

A proxys work starts when incoming data is requested by way of a particular computer in the area community. The proxy helps to ensure that the information correctly enters and goes through among its ports, at these times [http://www.amazon.com/Import-Export-Business-Plan-ebook/dp/B004W3UG7S your import export magazine]. Consequently, the information is forwarded to it that was requested by the unit through another port. Therefore, by giving a of prohibiting the immediate accessibility between networks, a proxy can stop hackers and unauthorized individuals from obtaining sensitive information including the internal addresses of friends. 

A proxy has 2 forms. These include: 

(1) the http proxy; and 

(2) the SMTP proxy. 

While the latter acts as a gateway for mail, the former acts as a gateway for Internet access. Aside from preventing the access level of external networks, the proxy may also restrict computers within the local system in terms of the web resources they are able to access. That is particularly of good use in situations when the system manager needs to stop the people from opening websites they are not designed to access. 

A proxy can also cache website pages. This is a feature that permits the key computer to store copies of downloaded Webpages in its hard disk. A copy of that URL is located in the host, whenever a computer in the local network needs for an URL. Consequently, when still another computer needs for the same URL, the proxy can provide the copy
  in place of getting the original one from the Internet. This, needless to say, reduces the time for obtaining information.