Proxy Server

Category: Entertainment

Presentation Description

No description available.


Presentation Transcript

Slide 2: 

A Proxy Server is a computer that offers network and internet access services to the client computers in a network. A proxy is a stand-in for you - someone who does something on your behalf. A proxy server is a kind of stand in for your computer. In an enterprise that uses the Internet, a proxy server is a server that acts as an intermediary between a workstation user and the Internet so that the enterprise can ensure security, administrative control, and caching service.

Slide 4: 

By using the proxy server you can hide, conceal and make your network id anonymous by hiding your IP address. A proxy server is associated with or part of a gateway server that separates the enterprise network from the outside network and a firewall server that protects the enterprise network from outside intrusion. In short, a Proxy Server can be described as 'A server that sits between a client application, such as a Web browser, and a real server.' To get the anonymous status on the network or Internet, strong intermediate methods are employed like cryptography etc.

How does Proxy Server works? : 

How does Proxy Server works? A proxy server receives a request for an Internet service (such as a Web page request) from a user. If it passes filtering requirements, the proxy server, assuming it is also a cache server , looks in its local cache of previously downloaded Web pages. If it finds the page, it returns it to the user without needing to forward the request to the Internet. If the page is not in the cache, the proxy server, acting as a client on behalf of the user, uses one of its own IP addresses to request the page from the server out on the Internet. When the page is returned, the proxy server relates it to the original request and forwards it on to the user. A good example, and the one you probably see the most, is a web proxy. When configured to use a proxy, your web browser contacts the proxy server for each web access instead of going directly to the target server on the internet. The proxy server then turns around and makes the "real" request of the web server. The proxy server gets the response, and then passes it back to you.

Slide 7: 

There is a large number of the software available that allows you to hide your IP address with the help of the proxy servers. The well known software for this purpose is Hide IP, Stealth surf, Netconceal, Anonymous surfing, Proxify and Ghost surf. To the user, the proxy server is invisible; all Internet requests and returned responses appear to be directly with the addressed Internet server. (The proxy is not quite invisible; its IP address has to be specified as a configuration option to the browser or other protocol program.)

Slide 8: 

Slide 9: 

Transparent proxy serversWant to increase speed of your internet connection? If yes, then transparent proxy servers are for you, because they usually are the fastest proxy servers available in the internet.

Slide 10: 

Socks proxy servers Socks proxy servers ensure 100% anonymity, because they don't send your real IP address. You can socksify any application and use it through socks proxy servers.

Slide 11: 

IRC proxy serversIRC proxy servers support IRC connections. While you are in IRC, everyone can find out your real IP address and attack you. You can use anonymous IRC proxy server to hide your IP address and protect your internet security.

Slide 12: 

Depending on the purpose you can get Proxy Servers to route any of these common protocols, and many more. So out of the common types of Proxy Servers, you end up with the following: FTP Proxy Server:Relays and caches FTP Traffic. HTTP Proxy Server:A one way request to retrieve Web Pages. Socks Proxy Server:A newer protocol to allow relaying of far more different types of data, whether TCP or UDP.NAT Proxy Server:This one works a little different, it allows the redirection of all packets without a Program having to support a Proxy Server.SSL Proxy Server:

Slide 13: 

An extension was created to the HTTP Proxy Server which allows relaying of TCP data similar to a Socks Proxy Server. This one done mainly to allow encryption of Web Page requests. Furthermore, a Proxy Server can be split into another two Categories: AnonymousAn Anonymous Proxy Server blocks the remote Computer from knowing the identity of the Computer using the Proxy Server to make requests. TransparentA Transparent Proxy Server tells the remote Computer the IP Address of your Computer. This provides no privacy. Anonymous Proxy Servers can further be broken down into two more categories, Elite and Disguised. An Elite Proxy Server is not identifiable to the remote computer as a Proxy in any way. A Disguised Proxy Server gives the remote computer enough information to let it know that it is a Proxy, however it still does not give away the IP of the Computer it is relaying information for. __________________

Type of proxy server : 

Type of proxy server FTP HTTP Gopher IRC MSN AIM ICQ VOIP SSL

Slide 15: 

SSL proxy servers Want to visit HTTPS web site using proxy server? You need SSL proxy servers, because they support HTTPS connections, so you can connect to secured web sites.

authorStream Live Help