The ServletRequest interface defines the following methods to get more information about the client or the last proxy that send the request.
getRemoteAddr() : Returns the Internet Protocol (IP) address of the client or last proxy that sent the request.
getRemoteHost() : Returns the fully qualified name of the client or the last proxy that sent the request.
getRemotePort() : Returns the Internet Protocol (IP) source port of the client or last proxy that sent the request.
HttpServletRequest interface that extends from ServletRequest interface inherits above methods.
