denial of service
noun [ U ] computing specialized uk/dɪˌnaɪ.əl əv ˈsɜː.vɪs/ us/dɪˌnaɪ.əl əv ˈsɝː.vɪs/ (abbreviation DoS)
拒绝服务攻击（指一名或多名使用者同时发送大量数据，故意阻止计算机网络或网站正常工作的情况）
an occasion when a computer network or website is intentionally prevented from working correctly, by a person or group sending a large amount of data at one time
Denial of service results when a huge wave of requests swamps the capacity of a server. 当大量的请求如浪潮般淹没了服务器容量时，拒绝服务攻击便会发生。
By conducting a denial-of-service attack, a hacker overloads a system with information. 为实现拒绝服务攻击，黑客会给系统加载大量信息。
See also: DDoS
- More examples
- Denial of service can also be created by "mail bombing" - flooding computer servers with mass emails.
- If a denial-of-service attack is imminent, there isn't much the victim can do to stop it.
- The organization detects between 30 and 50 denial of service attacks every day around the world.