Definition of the Day ------------------------- -Trivial File Transfer Protocol (TFTP) ----------------------------------------------- Trivial File Transfer Protocol (TFTP) is a simple protocol used for transferring files. TFTP uses the User Datagram Protocol (UDP) to transport data from one end to another. TFTP is mostly used to read and write files/mail to or from a remote server. Trivial File Transfer Protocol is very simple in design and has limited features as compared to File Transfer Protocol (FTP). TFTP provides no authentication and security while transferring files. As a result, it is usually used for transferring boot files or configuration files between machines in a local setup. Because of its simple design, it is rarely used interactively by users in a computer network. Its lack of security also makes it dangerous for use over the Internet. TFTP is very useful for boot computers and devices that do not have hard disk drives or storage devices because it can easily be implemented using a small amount of memory. This characteristic of TFTP makes it one of the core elements of network boot protocol, or preboot execution environment (PXE). Data transfer through TFTP is usually initiated through port 69. However, the data transfer ports are selected by the sender and receiver when the connection is initialized. --Differences Between FTP and TFTP ------------------------------------------------ -FTP is a complete, session-oriented, general purpose file transfer protocol. TFTP is used as a bare-bones special purpose file transfer protocol. -FTP can be used interactively. TFTP allows only unidirectional transfer of files. -FTP depends on TCP, is connection oriented, and provides reliable control. TFTP depends on UDP, requires less overhead, and provides virtually no control. -FTP provides user authentication. TFTP does not. -FTP uses well-known TCP port numbers: 20 for data and 21 for connection dialog. TFTP uses UDP port number 69 for its file transfer activity. https://facebook/kiteducation
Posted on: Tue, 02 Dec 2014 11:13:04 +0000
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