When cryptologists Daniel J. Bernstein and Jeff Weisberg made SYN cookies mainstream as a way of mitigating SYN floods, the problem was considered insoluble. It was September 1996, following the SYN flood, which had shut down the mail service for … [Read more...] about What Are SYN Cookies?
Daniel J. Bernstein
What is a SYN Flood?
A SYN flood, aka TCP-SYN flood, is one of the oldest forms of DDoS attacks, whose goal is to make a server unavailable to legitimate traffic by consuming all the server’s available resources. The attacker repeatedly sends initial connection request … [Read more...] about What is a SYN Flood?