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Wikipedia[note 3] is a free content online encyclopedia written and maintained by a community of volunteers, known as Wikipedians, through open collaboration and the use of the wiki-based editing system MediaWiki. Wikipedia is the largest and most-read reference work in history.[3][4] It is consistently ranked as one of the ten most popular ...
The COVID-19 pandemic, also known as the coronavirus pandemic, is a global pandemic of coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The novel virus was first identified in an outbreak in Wuhan, the capital of Hubei, China, in December 2019, before it spread to other areas of Asia, and then worldwide in early 2020.
What links here Related changes Upload file Special pages Permanent link Page information Cite this page Get shortened URL Download QR code Wikidata item The region today: Israel, the West Bank, the Gaza Strip and the Golan Heights The history of the Israeli–Palestinian conflict traces back to the late 19th century when Zionists sought to establish a homeland for the Jewish people in Ottoman ...
- Technical Overview
- History
- Http Data Exchange
- Http Authentication
- Http Application Session
- P/1.1 Response Messages
- P/1.1 Example of Request / Response Transaction
- Encrypted Connections
- Similar Protocols
- See Also
HTTP functions as a request–response protocol in the client–server model. A web browser, for example, may be the client whereas a process, named web server, running on a computer hosting one or more websites may be the server. The client submits an HTTP request message to the server. The server, which provides resources such as HTML files and other...
The term hypertext was coined by Ted Nelson in 1965 in the Xanadu Project, which was in turn inspired by Vannevar Bush's 1930s vision of the microfilm-based information retrieval and management "memex" system described in his 1945 essay "As We May Think". Tim Berners-Lee and his team at CERN are credited with inventing the original HTTP, along with...
HTTP is a stateless application-level protocol and it requires a reliable network transport connection to exchange data between client and server. In HTTP implementations, TCP/IP connections are used using well-known ports (typically port 80 if the connection is unencrypted or port 443 if the connection is encrypted, see also List of TCP and UDP po...
HTTP provides multiple authentication schemes such as basic access authentication and digest access authenticationwhich operate via a challenge–response mechanism whereby the server identifies and issues a challenge before serving the requested content. HTTP provides a general framework for access control and authentication, via an extensible set o...
HTTP is a stateless protocol. A stateless protocol does not require the web server to retain information or status about each user for the duration of multiple requests. Some web applications need to manage user sessions, so they implement states, or server side sessions, using for instance HTTP cookies or hidden variables within web forms. To star...
A response message is sent by a server to a client as a reply to its former request message.[note 4]
Below is a sample HTTP transaction between an HTTP/1.1 client and an HTTP/1.1 server running on www.example.com, port 80.[note 5][note 6]
The most popular way of establishing an encrypted HTTP connection is HTTPS. Two other methods for establishing an encrypted HTTP connection also exist: Secure Hypertext Transfer Protocol, and using the HTTP/1.1 Upgrade headerto specify an upgrade to TLS. Browser support for these two is, however, nearly non-existent.
The Gopher protocolis a content delivery protocol that was displaced by HTTP in the early 1990s.The SPDY protocol is an alternative to HTTP developed at Google, superseded by HTTP/2.The Gemini protocolis a Gopher-inspired protocol which mandates privacy-related features.Constrained Application Protocol – a semantically similar protocol to HTTP but used UDP or UDP-like messages targeted for devices with limited processing capability; re-uses HTTP and other internet...Clone phishing is a type of attack where a legitimate email with an attachment or link is copied and modified to contain malicious content. The modified email is then sent from a fake address made to look like it's from the original sender. The attack may appear to be a resend or update of the original email.
Zoophilia is a paraphilia in which a person experiences a sexual fixation on non-human animals.[1][2] Bestiality instead refers to cross-species sexual activity between humans and non-human animals.[a] Because of the lack of research on the subject, it is difficult to conclude how prevalent bestiality is.[4] Zoophilia on the other hand, was ...
C ( pronounced / ˈsiː / – like the letter c) [6] is a general-purpose computer programming language. It was created in the 1970s by Dennis Ritchie and remains very widely used and influential. By design, C's features cleanly reflect the capabilities of the targeted CPUs. It has found lasting use in operating systems, device drivers, and ...
