How to prevent / protect from DDoS -> DDos Security

Once a botnet (malware systems) has been established, the attacker is able to direct an attack by sending remote instructions to each bot.

Signs of a DDoS attack:

Suspicious amounts of traffic originating from a single IP address or IP range
A flood of traffic from users who share a single behavioural profile, such as device type, geo-location, or web browser version
An unexplained surge in requests to a single page or endpoint
Odd traffic patterns such as spikes at odd hours of the day or patterns that appear to be unnatural (e.g. a spike every 10 minutes)

Attack Types

Attacks can happen in several layers of Network (ref: OSI Model)