tarpinis serveris(A computer (or the software that runs on it) that acts as a barrier between a network and the Internet by presenting only a single network address to external sites)
Proxy(A computer (or the software that runs on it) that acts as a barrier between a network and the Internet by presenting only a single network address to external sites); Proxy(A service, process, or file that allows the computer to serve as an interface device between a remote system and the Internet. Common uses of a proxy are to send unsolicited (spam) email)
