Penetration Testing and Network Defense

Transmission Control Protocol. One of the core protocols of the IP suite that guarantees that data sent from one node will be received by the other in its entirety.

A protocol in the TCP/IP stack that provides terminal emulation used for connecting to and controlling remote systems.

Trivial File Transfer Protocol. A simple protocol that is similar to FTP and used for transferring small files between hosts on a network. Unlike FTP, which uses TCP port 21, TFTP utilizes UDP port 69.

A program that might appear useful on the surface but in which harmful or malicious code is contained.