用戶:NHC/2021年Facebook癱瘓事件
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2021年Facebook癱瘓事件(英語:2021 Facebook outage)發生在世界協調時間2021年10月4日15:39,社群網站Facebook及其子公司Messenger、Instagram、WhatsApp、Mapillary及Oculus(英語:Oculus (brand))在全球範圍內超過7個小時無法使用。[1][2]還阻止了任何試圖使用Facebook登錄(英語:Log in with Facebook)的人訪問第三方網站。[3]在此期間,由於大量用戶改而湧向Twitter、Discord及Telegram等平台,曾導致這些應用程式的伺服器服務中斷。[4][5][6]
On October 4, 2021 at 15:39 協調世界時, the 社會網絡 Facebook and its subsidiaries, Facebook Messenger, Instagram, WhatsApp, Mapillary, and Oculus(英語:Oculus (brand)), became globally unavailable for more than seven hours.[1][2] The outage also prevented anyone trying to use "Log in with Facebook(英語:Log in with Facebook)" from accessing third-party sites.[7] During the outage, many users flocked to Twitter, Discord, and 電報, resulting in disruptions on these apps' servers.[4][8][9] The outage was caused by the loss of IP轉發 to the Facebook 域名系統 (DNS) servers, which were all self-hosted at the time.[10][4] 邊界網關協議 (BGP) routing was restored for the affected prefixes at about 20:50, and DNS services began to be available again at 21:05 UTC, but application-layer services were slowly restored to Facebook, Instagram, and WhatsApp more than an hour later, with service generally restored for users by 22:45.[11]