The dos and don’ts of DDoS attacks

The experts tell Róisín Kiberd how to protect against one of the most common – and annoying – cyber threats

The aim of DDoS attacks is to overwhelm websites and online services with more traffic than the server or network can accommodate, and render the website or service inoperable

Distributed denial of service (DDoS) attacks are among the oldest and best-known forms of cyber attack, with the first one in recorded history happening in 1996.

Panix, itself one of the oldest internet service providers in the world, was hit with an SYN flood attack, a form of DDoS in which requests bombard a website, consuming its resources and leaving it incapable of responding to traffic.

More recently, another service provider, Arbor Networks, fell victim ...