TFTP

Oprettet torsdag 18 juni 2020

Trivial File Transfer Protocol

Trivial File Transfer Protocol is a technology that transfers files between network devices and is a simplified version of the more robust File Transfer Protocol. TFTP was developed in the 1970s for computers lacking sufficient memory or disk space to provide full FTP support. Today, TFTP is found on consumer broadband routers and commercial network routers.

Home network administrators use TFTP to upgrade the router firmware, while professional administrators use TFTP to distribute software across corporate networks.

How TFTP Works
Like FTP, TFTP uses client and server software to make connections between two devices. From a TFTP client, individual files can be copied (uploaded) to or downloaded from the server. The server hosts the files and the client requests or sends files.

TFTP relies on UDP to transport data.

TFTP can also be used to remotely start a computer and back up network or router configuration files.

TFTP Client and Server Software
Command-line TFTP clients are included in current versions of Microsoft Windows, Linux, and macOS. TFTP clients with graphical interfaces are also available as freeware, for example, TFTPD32 which includes a TFTP server. Windows TFTP Utility is another example of a GUI client and server for TFTP, and there are other free FTP clients.

Trivial File Transfer Protocol differs from FTP in these key respects:

Original versions of TFTP transferred files up to 32 MB in size. Some newer TFTP servers remove this restriction or might limit file size to 4 GB.
Unlike FTP, TFTP has no login feature, so it doesn't prompt for a username and password. Avoid using TFTP to share sensitive files — you can't protect these files or audit access to the files.
Listing, renaming, and deleting files over TFTP is usually not allowed.
TFTP uses UDP port 69 to establish network connections while FTP uses TCP ports 20 and 21.
Because TFTP is implemented using UDP, it generally works only on local area networks.

https://www.lifewire.com/definition-of-tftp-817576

TFTP (Trivial File Transfer Protocol) – File Transfer Protocol made simple

A shared means of communication is absolutely necessary when exchanging data between two computer systems in a network. One of the simplest protocols developed specifically for this purpose is the Trivial File Transfer Protocol (TFTP), which played an important role at the dawn of the internet.
https://www.ionos.com/digitalguide/server/know-how/trivial-file-transfer-protocol/

Backlinks: Teknik 1wiki:Linux:Generelt:Netværk - Server - Services:FTP-TFTP