Circuit level gateways work at the session layer of the OSI model, or as a "shim-layer" between the application layer and the transport layer of the TCP/IP stack. They monitor TCP handshaking between packets to determine whether a requested session is legitimate. Information passed to a remote computer through a circuit level gateway appears to have originated from the gateway. This is useful for hiding information about protected networks. Circuit level gateways are relatively inexpensive and have the advantage of hiding information about the private network they protect. On the other hand, they do not filter individual packets.
Tech speak: a clip-out guide for making sense of what your IT team tells you.(IT Technology for Broadcasting)
Jul 19, 2004; SERVER: A computer or device on a network that stores and manages certain resources. File servers typically store the audio and...