Webserver
En webserver er i computerterminologi et program (eventuelt også maskinen det kører på) der lagrer og udleverer data på internettet. De opbevarede data kan webbrowsere hente via protokollen HTTP eller HTTPS. Ud over den grundlæggende funktion, at sende efterspurgte filer af sted vil en webserver typisk have andre muligheder. Nogle webservere kan håndtere mange domæner, så det udefra ser ud som om der er tale om helt adskilte maskiner men i virkeligheden er det samme computer og samme webserverprogram. Det kan også være muligt at adskille den filstruktur som brugeren oplever fra den struktur som filerne rent faktisk er placeret i. Det giver mulighed for at flytte filer efter behov uden at hjemmesidens struktur ændres. Typisk vil der også være mulighed for at beskytte dele af webserverens indhold med kodeord og på den måde styre adgangen. Webservere skal vedligeholdes med de nyeste sikkerhedsopdateringer, for at forhindre indbrud i systemet.
Eksempler på webservere
Som eksempler kan nævnes: Apache, Tux, Roxen og IIS.
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Forfatter/Opretter:
- Integrated_circuit_icon.svg: Everaldo Coelho and YellowIcon
- Blank_template.svg: Urutseg
- derivative work: Ain92 (talk)
Microelectronics and integrated circuits stub icon.
(c) Coolcaesar fra en.wikipedia.org, CC BY-SA 3.0
* This NeXT workstation (a NeXTcube, monitor Cern 57503) was used by Tim Berners-Lee as the first Web server on the World Wide Web. It is shown here as displayed in 2005 at Microcosm, the public science museum at CERN where Berners-Lee was working in 1991 when he invented the Web.
- The document resting on the keyboard is a copy of "CERN DD/OC March 1989 Information Management: A Proposal. Abstract" which was Berners-Lee's original proposal for the World Wide Web. (Further text visible: "...distributed hypertext systems, Hypertext, computer conferencing, document retrieval, information management. Project, IBM Group talk, VAX/Notes, CERNDOC, UUCP News, Hierarchical systems".)
- The partly peeled off label on the cube itself has the following text: "This machine is a server. DO NOT POWER IT DOWN!!" The labels on top of the server and on the keyboard read "PROPRIETE CERN" (French for "Cern property").
- Just below the keyboard (not shown) is a label which reads: "At the end of the 80s, Tim Berners-Lee (TBL) invented the World Wide Web using this Next computer as the first Web server."
- The book is the enyclopedia in many parts of Robert Kemp Philp, ed.: "Enquire Within upon Everything", London 1856 and later editions, which TBL describes on page one of his book "Weaving the Web. The Original Design and Ultimate Destiny of the World Wide Web as "a musty old book of Victorian advice I noticed as a child in my parents' house outside London". (Text that is almost legible in the high resolution picture: 750. Diuretics, 756. Diaphoretics, 761. Expectorants, 765. Ginger).
- Text at the beginning of Tim Berners-Lee: Weaving the Web, Chapter 1 Enquire Within upon Everything:
- "When I first began tinkering with a software program that eventually gave rise to the idea of the World Wide Web, I named it Enquire, short for Enquire Within upon Everything, a musty old book of Victorian advice I noticed as a child in my parents' house outside London. With its title suggestive of magic, the book served as a portal to a world of information, everything from how to remove clothing stains to tips on investing money. Not a perfect analogy for the Web, but a primitive starting point.
- What that first bit of Enquire code led me to was something much larger, a vision encompassing the decentralized, organic growth of ideas, technology and society. The vision I have for the Web is about anything being potentially connected with anything..."