To understand what proxychains are we first need to understand what a proxy server is.This is the definition according to Wikipedia:" A Proxy server is a server (a computer system or an application) that acts as an intermediary for requests from clients seeking resources from 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 and the proxy server evaluates the request as a way to simplify and control its complexity. ... "                                                                                                                               Src: Wikipedia"Communication between two computers (shown in grey) connected through a third computer (shown in red) acting as a proxy. Bob does not know to whom the information is going, which is why proxies can be used to protect privacy."So, basically proxychains are a sequence of different proxies servers you use to connect to a certain host.Types of Proxys:Open Proxy - An open proxy is a forwarding proxy server that is accessible by any Internet user.Reverse Proxy - A reverse proxy (or surrogate) is a proxy server that appears to clients to be an ordinary server. Reverse proxies forward requests to one or more ordinary servers which handle the request.The best way to surf the web anonymously with proxies is with the tor browser, its easy to use and it does the job well, you can download it here