Difference between revisions of "Denial-of-service attack"
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| + | |description=An attack that makes a large number of (bogus) requests on a server, intended to exceed its capacity so as to deny valid requests from other users. | ||
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A '''Denial-of-service''' ('''DOS''') attack is designed to prevent users from accessing a service (typically a website). | A '''Denial-of-service''' ('''DOS''') attack is designed to prevent users from accessing a service (typically a website). | ||
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===Distributed Denial-of-service attack=== | ===Distributed Denial-of-service attack=== | ||
A Distributed Denial-of-service (DDOS) attack comes from multiple sources simultaneously, making it harder to block. This requires synchronisation of multiple computers in different locations. | A Distributed Denial-of-service (DDOS) attack comes from multiple sources simultaneously, making it harder to block. This requires synchronisation of multiple computers in different locations. | ||
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| + | ==Examples== | ||
| + | In mid March 2018, [[Craig Murray's blog]] was hit by a DDOS attack, although this did not prevent the site's surge in popularity corresponding with his strident criticism of the {{on}} about the [[Skripal affair]]. | ||
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| + | ===This website=== | ||
| + | This website has occasionally been subject to DDOS attacks, possibly connected with a particular citation in {{ccm}}. | ||
==Perpetrators== | ==Perpetrators== | ||
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[[image:cmb-2018-03-21.png|right|444px|thumbnail|An image of the suddenly increased traffic to his site which [[Craig Murray]] posted.]] | [[image:cmb-2018-03-21.png|right|444px|thumbnail|An image of the suddenly increased traffic to his site which [[Craig Murray]] posted.]] | ||
[[JTRIG]] carried out DDOS attacks, according to documents shared by [[Edward Snowden]].<ref>https://www.theregister.co.uk/2014/02/07/snowden_documents_show_british_digital_spies_using_viruses_and_honey_traps/</ref> | [[JTRIG]] carried out DDOS attacks, according to documents shared by [[Edward Snowden]].<ref>https://www.theregister.co.uk/2014/02/07/snowden_documents_show_british_digital_spies_using_viruses_and_honey_traps/</ref> | ||
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{{SMWDocs}} | {{SMWDocs}} | ||
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==References== | ==References== | ||
{{reflist}} | {{reflist}} | ||
Revision as of 13:42, 5 April 2019
 Denial-of-service attack  (“cyberterrorism”)   | |
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| An attack that makes a large number of (bogus) requests on a server, intended to exceed its capacity so as to deny valid requests from other users. |
A Denial-of-service (DOS) attack is designed to prevent users from accessing a service (typically a website).
Contents
Procedure
Denial-of-service attacks exploit the inescapable limitation that computers can only service a limited number of requests at any one time. By launching a large number of requests for a service, they exceed this capacity and prevent legitimate requests from being served.
Distributed Denial-of-service attack
A Distributed Denial-of-service (DDOS) attack comes from multiple sources simultaneously, making it harder to block. This requires synchronisation of multiple computers in different locations.
Examples
In mid March 2018, Craig Murray's blog was hit by a DDOS attack, although this did not prevent the site's surge in popularity corresponding with his strident criticism of the official narrative about the Skripal affair.
This website
This website has occasionally been subject to DDOS attacks, possibly connected with a particular citation in commercially-controlled media.
Perpetrators
JTRIG carried out DDOS attacks, according to documents shared by Edward Snowden.[1]
