File transfer
File transfer is the transmission of a computer file through a communication channel from one computer system to another. Typically, file transfer is mediated by a communications protocol. In the history of computing, numerous file transfer protocols have been designed for different contexts.
Protocols
A file transfer protocol is a convention that describes how to transfer files between two computing endpoints. As well as the stream of bits from a file stored as a single unit in a file system, some may also send relevant metadata such as the filename, file size and timestamp - and even file system permissions and file attributes.
Some examples:
- FTP is an older cross-platform file transfer protocol[1]
- SSH File Transfer Protocol a file transfer protocol secured by the Secure Shell (SSH) protocol
- Secure copy (scp) is based on the Secure Shell (SSH) protocol
- HTTP can support file transfer
- Bittorent, Gnutella and other distributed file transfers systems use peer-to-peer
- In Systems Network Architecture, LU 6.2 Connect:Direct and XCOM Data Transport are traditionally used to transfer files
- Many instant messaging or LAN messenger systems support the ability to transfer files
- Computers may transfer files to peripheral devices such as USB flash drives
- Dial-up modems null modem links used XMODEM, YMODEM, ZMODEM and similar
gollark: Oh, also, quite a few things involve Unicode, which CC can't handle. At all.
gollark: https://validator.w3.org/nu/?doc=https%3A%2F%2Fosmarks.tk%2FResults for my site, which is small and pretty standards-compliant by comparison to most stuff.
gollark: Hmm, let me find the w3c validator...
gollark: Actual browsers just have to make a best guess at what the page actually means. Run any site through a HTML validator and check.
gollark: Why? Partly because it's really weird generally because of inconsistencies, partly because *nothing actually matches the standard properly*.
See also
References
- Prince, Brian. "Should Organizations Retire FTP for Security?". Security Week. Security Week. Retrieved 14 September 2017.
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