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January 21 2013


How To Pick A Proxy

A proxy server is a mainframe that sits in the middle of a client and a server to divert requests. There are numerous usages of a proxy server, but the best known is to hurry network traffic by caching pages or files that are used often. By doing so, the server can send the request fast, only polling the server when needed. In this way, it not only speeds up network traffic, but also relieves server load. Large Internet hubs and Internet Service Providers (ISPs) use dozens of proxy servers. Filtering or censorship is an extra use for a proxy server. A company that offers Internet connectivity to its workers may organise such a server to block requests for explicit websites. It can similarly block content based on configurable criteria to help enforce acceptable use rules. If a proxy server does not need a Web browser to be managed to use the proxy, it's called a transparent proxy. Then the Web browser must point to the proxy in order to use it. Companies favour the former, as employees can't evade it by reconfiguring their Web browsers. These sort of servers are also commonly used as firewalls. They can scan for malware, viruses, and other threats, safeguarding the primary server and network. Secure Sockets Layer (SSL) servers used to create Virtual Private Networks (VPNs) sometimes use https proxies. These Unblock Twitter at work proxies speed traffic over secure channels and check for viruses in tunnelled communications. The https proxy server can encrypt, decrypt, and cache encrypted data. Normal proxy servers can't cache encrypted data for protection reasons, and so have no purpose in a VPN. There are differences of view as to whether https proxies create possible security risks. Yet an additional utility for a proxy server is to provide anonymous Web surfing. Several services deliver proxies for the community to use to secure their online anonymity. The user's requests go to the website's proxy server, which removes the customer's Internet protocol (IP) address and sends them on their way. The data gets routed back to the proxy, which then directs the pages to the user's browser. As far as the Internet is concerned, the only IP address on the remote server is the proxy's IP address. Only the http://www.websiteproxy.co.uk proxy is aware of the customer's IP address. Companies that run anonymous proxy servers normally claim to wipe server logs often to protect customer privacy. Another model includes a network of volunteer proxy servers. This model employ encryption to obfuscate the original IP address and final route a request takes. As the request moves its way through the Internet from one proxy server to the next, each server in the middle can only read the adjacent steps in the chain. Contents, origin, and ultimate destination are all unknown. The final server decrypts the contents and delivers the request to the server without a plain text record of where the request was made. The page or file then returns the same way, through a series of encrypted steps. This like this system thwarts traffic analysis and protects confidentiality while protecting the proxy servers themselves.
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