In computer networks, a proxy server is a server (a computer system or an application program) which services the requests of its clients by forwarding requests to other servers. A client connects to the proxy server, requesting some service, such as a file, connection, web page, or other resource, available from a different server. The proxy server provides the resource by connecting to the specified server and requesting the service on behalf of the client. A proxy server may optionally alter the client's request or the server's response, and sometimes it may serve the request without contacting the specified server. In this case, it would 'cache' the first request to the remote server, so it could save the information for later, and make everything as fast as possible. A proxy server that passes all requests and replies unmodified is usually called a gateway or sometimes tunneling proxy. A proxy server can be placed in the user's local computer or at specific key points between the user and the destination servers or the Internet.

14 January 2009

Good Presentation

My works is always has a connection with people who want to buy my product and it’s sometime very demanding and in a last minute. I have an experience while I need to do a presentation to their group. The success of my presentation is depend to my overall presentation. And sometimes I lost some file extension PPS, which is I don’t understand why it happen.

Several days ago I try to download a free software that I need urgently, but in this process the software did not work properly, I am wondering what cause of this problem. Maybe what basically happens is that file extension TORRENT splits the file up among multiple nodes and the nodes then download the pieces from each other while it work maybe some missing file is occurs.

File extension DLL is also important file that need to run smoothly for web pages with DLL file extensions are typically hosted on Microsoft IIS Web servers; the DLL extension must be mapped to the correct scripting engine on the server in order for the page to be processed correctly.

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