File transfer: Difference between revisions

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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[edit]

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
BitTorrent, 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

References[edit]

^ Prince, Brian (24 January 2012). "Should Organizations Retire FTP for Security?". Security Week. Retrieved 14 September 2017.

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[1] Prince, Brian (24 January 2012). "Should Organizations Retire FTP for Security?". Security Week. Retrieved 14 September 2017.

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+'''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 [[Comparison of file transfer protocols|file transfer protocols]] have been designed for different contexts.
-{{cleanup|date=August 2007}} <!-- there are two lead sections from an extremely sloppy "merge" -->
+==Protocols==
-A '''protocol for file transfer''' or '''file transfer protocol''' is a convention or standard that controls or enables the transfer of [[computer file|file]]s between two computing endpoints.  Unlike with a general-purpose [[Protocol (computing)|communication protocol]], file transfer protocols are not designed to send arbitrary data or facilitate [[asynchronous communication]] such as [[Telnet]] sessions.  They are meant solely to send the stream of [[bit]]s stored as a single unit in a [[file system]], plus any relevant [[metadata]] such as the [[filename]], file size, and [[timestamp]].
+A file transfer protocol is a convention that describes how to transfer files between two computing endpoints. As well as the stream of [[bit]]s 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 attribute]]s.
+Some examples:
-File transfer protocols usually operate on top of a lower-level protocol in a [[protocol stack]].  For example, the [[File Transfer Protocol|Internet FTP]] protocol operates as the topmost layer of the [[TCP/IP stack]], whereas [[XMODEM]], [[YMODEM]], and [[ZMODEM]] typically operate across [[RS-232]] serial connections to [[modem]]s.
+* [[File Transfer Protocol|FTP]] is an older cross-platform file transfer protocol<ref>{{cite web |last1=Prince |first1=Brian |title=Should Organizations Retire FTP for Security? |url=http://www.securityweek.com/should-organizations-retire-ftp-security |website=Security Week |date=24 January 2012 |access-date=14 September 2017}}</ref>
+* [[SSH File Transfer Protocol]] a file transfer protocol secured by the [[Secure Shell]] (SSH) protocol
+* [[Secure copy protocol|Secure copy]] (''scp'') is based on the [[Secure Shell]] (SSH) protocol
+* [[HTTP]] can support file transfer
+* [[BitTorrent]], [[Gnutella]] and other distributed file transfers systems use [[peer-to-peer]]
+* In [[Systems Network Architecture]], [[IBM Advanced Program-to-Program Communication|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
+* [[Computer]]s may transfer files to [[peripheral device]]s such as [[USB flash drive]]s
+* Dial-up [[modem]]s [[null modem]] links used [[XMODEM]], [[YMODEM]], [[ZMODEM]] and similar
+==See also==
-==What Is File Transfer?==
+* [[File sharing]]
-In computing, '''file transfer''' is a generic term for referring to the act of [[transmission (telecommunications)|transmitting]] [[file (computing)|file]]s over a [[computer network]]. While the term "file transfer" is often linked to the [[File Transfer Protocol]] (FTP), there are numerous ways to transfer files over a network. [[Server (computing)|Server]]s which provide a file transfer service are often called [[file server]]s.
+* [[Managed file transfer]]
+* [[Peer-to-peer file sharing]]
+* [[Pull technology]]
+* [[Push technology]]
+* [[Sideloading]]
+==References==
-There are 2 Types of file transfers:
+{{reflist}}
-* "Pull-based" file transfers where the receiver initiates a file transmission request.
-* "Push-based" file transfers where the sender initiates a file transmission request.
+{{Computer files}}
-Some protocols for file transfer may provide both of these, and they are often referred to as [[uploading and downloading|"uploading" or "downloading"]], from the [[client (computing)|client]]'s perspective.jnytjhjtjkt,mjhfktjulyil.;u
-* [[network transparency|Transparent]] file transfers over [[network file system]]s.
-* Explicit file transfers from dedicated file-transfer services like [[File Transfer Protocol|FTP]] or [[Hypertext Transfer Protocol|HTTP]].
-* Distributed file transfers over [[peer-to-peer]] networks.
-* File transfers over [[instant messaging]] systems.
-* File transfers between [[computer]]s and [[peripheral device]]s.
-* File transfers over direct [[modem]] or [[serial port|serial]] ([[null modem]]) links, such as [[XMODEM]], [[YMODEM]] and [[ZMODEM]].
+{{DEFAULTSORT:File transfer}}
-==See Also==
+[[Category:Internet terminology]]
-* [[List of file transfer protocols]]
+[[Category:Network file transfer protocols]]
-* [[File Transfer Protocol]] (FTP)
-* [[Managed file transfer]]
-* [[CA-XCOM]] file transfer software
-{{compu-network-stub}}
+{{Compu-network-stub}}
-[[Category:Network file transfer protocols]]

v t e Computer files
Types	Binary file / text file Data file File format List of file formats File signatures Magic number Open file formats Proprietary file formats Metafile Sidecar file Sparse file Swap file System file Temporary file Zero-byte file
Properties	Filename 8.3 filename Long filename Filename mangling Filename extension List of filename extensions File attribute Extended file attributes File size Hidden file / Hidden directory
Organisation	Directory/folder NTFS links Temporary folder Directory structure File system Filesystem Hierarchy Standard Grid file system Semantic file system Path
Operations	Open Close Read Write
Linking	File descriptor Hard link Shortcut Alias Shadow Symbolic link
Management	Backup File comparison File copying Data compression File manager Comparison of file managers File system fragmentation File-system permissions File transfer File sharing File synchronization File verification

Latest revision as of 19:05, 20 August 2023

Protocols[edit]

See also[edit]

References[edit]