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 November 2007

Safe Web Surfing With Web Proxy

Internet is the modern day storage house of all kinds of information. There are sites that provide information, fun, news, business and great shopping experience. Whatever you want is there on the Internet. That is why more and more people are joining the Internet society everyday. Here we surf through sites to find the desired information or resources. Many people use the facility of web proxy, which is a type of a proxy server. But do you know why such a service is used?

While you are surfing the net, there are people who are always trying to track your location, even your social security number. These people are the hackers and online advertising agencies. They track down information about you and target you.

The advertising agencies will send unwanted advertisements on your email IDs while the hackers are famous for causing a lot of damage. For protecting their information and IDs from such attacks, Internet surfers use web proxy. This facility involves the formation of a proxy ID by a net user. This facility is being provided by many web surfing proxy sites.

For using this unique surfing facility, simply log onto one of the proxy sites. The site will provide a port number and an IP address. This information can then be used for figuring out your web proxy. The proxy IP address and port number that you create at the site can be used by you for protecting your identity and keeping your email free from all kinds of junk emails and spam.

All these emails and information will first come on the proxy IP address that you have created. Whatever information will be found to be important will be forwarded to your original email. This way your email will not get spammed continuously.

Apart from web proxy, such sites also provide CGI proxy. This facility works in the same manner as web proxy but with a little difference.CGI proxy is while visiting a website. Here, a CGI proxy site will develop a script for communication between an Internet user and a website.

The script will not allow the site to procure any kind of information related to the user. It will also prevent the site from storing any cookies on the user's system.

The two services can also be used by downloading or installing the Multi proxy software. There are various sites that provide this software online. After downloading this software, you will be provided with a list of all the proxy servers. This is actually the list of the IP addresses and port numbers that are available on the net. This software is more effective and safe as compared to the web-based sites that offer the service of web proxy.

Web proxy services are also used for increasing the efficiency and speed of a network. The information that is stored in the database of a proxy server is used for the purpose. In this case, a proxy server uses the Internet feature of cache. All the information that a user searches on the Internet is stored in a separate database which is called cache.

Whenever a new user will search for the same information, the proxy server will first search the cache database and then search some where else. This way the time of the user is saved.

1 comment:

Unknown said...

Using proxy is a good thing. But we should be more careful as specified above. Safe web surfing is always better.

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