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DDOS (Distributed denial-of-service)

An attempt to disrupt normal traffic of a targeted server, service or network by overwhelming the target or its surrounding infrastructure with a flood of Internet traffic.

Downtime & Uptime

Downtime and uptime describe how long a website, computer or other system has been working (uptime) or not working (downtime).

DNS (Domain Name System)

The Domain Name System is the phonebook of the internet. Each device connected to the internet has a unique IP address which other machines use to find the device. DNS servers eliminate the need for us to memorise IP addresses such as 192.168.123.1