Is it safe to use free proxy server?
A proxy server has two purposes: * To keep machines behind it anonymous (mainly for security) * To speed up access to a resource (via caching). It is commonly used to cache web pages from a web server. A proxy server that passes requests and replies unmodified is usually called a gateway or sometimes tunneling proxy. An anonymous proxy server (sometimes called a web proxy) generally attempts to anonymize web surfing. There are different varieties of anonymizers. One of the more common variations is the open proxy. Because they are typically difficult to track, open proxies are especially useful to those seeking online anonymity, from political dissidents to computer criminals. Access control: Some proxy servers implement a logon requirement. In large organizations, authorized users must log on to gain access to the web. The organization can thereby track usage to individuals. In using a proxy server (for example, anonymizing HTTP proxy), all data sent to the service being used (for exa
