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Checksum. A checksum is a small-sized block of data derived from another block of digital data for the purpose of detecting errors that may have been introduced during its transmission or storage. By themselves, checksums are often used to verify data integrity but are not relied upon to verify data authenticity. [ 1]
In the macOS, iOS, NeXTSTEP, and GNUstep programming frameworks, property list files are files that store serialized objects. Property list files use the filename extension .plist, and thus are often referred to as p-list files. Property list files are often used to store a user's settings. They are also used to store information about bundles ...
Moodle – Free and open-source learning management system. OLAT – Web-based Learning Content Management System. Omeka – Content management system for online digital collections. openSIS – Web-based Student Information and School Management system. Sakai Project – Web-based learning management system.
v. t. e. HTTP header fields are a list of strings sent and received by both the client program and server on every HTTP request and response. These headers are usually invisible to the end-user and are only processed or logged by the server and client applications. They define how information sent/received through the connection are encoded (as ...
This is a list of TCP and UDP port numbers used by protocols for operation of network applications. The Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP) only need one port for duplex, bidirectional traffic. They usually use port numbers that match the services of the corresponding TCP or UDP implementation, if they exist.
A media type consists of a type and a subtype, which is further structured into a tree. A media type can optionally define a suffix and parameters : mime-type = type "/" [tree "."] subtype ["+" suffix]* [";" parameter]; As an example, an HTML file might be designated text/html; charset=UTF-8. In this example, text is the type, html is the ...
This is a list of file signatures, data used to identify or verify the content of a file. Such signatures are also known as magic numbersor Magic Bytes. Many file formats are not intended to be read as text. If such a file is accidentally viewed as a text file, its contents will be unintelligible. However, some file signatures can be ...
RFC 959 - File Transfer Protocol (FTP) RFC 1639 - FTP Operation Over Big Address Records (FOOBAR) RFC 2228 - FTP Security Extensions. RFC 2389 - Feature negotiation mechanism for the File Transfer Protocol. RFC 2428 - FTP Extensions for IPv6 and NATs. RFC 2640 - Internationalization of the File Transfer Protocol. RFC 3659 - Extensions to FTP.