Smart things about DNS Simple mechanism for synchronising primary and secondary servers.
{"Image DocumentName": "Smart things about DNSSimple mechanism for synchronising primary and secondary servers.", "Image ImageDescription": "Distributes data throughout the network, no real single point of failure for the Internet. With the exception of the root nameservers. DDoS Attacks. DDoS attacks? Distributed Denial of Service. It\u2019s what happens when you get a few million hosts all flooding a root nameserver with queries at the same time? How do you get a few million hosts all doing this? First, pick an OS that\u2019s relatively insecure, but often connected directly to the Internet. Such as all those Windows boxes that are now connected directly to the \u2018net using ADSL or cable broadband connections. Now, write an exploit for these hosts that installs itself and lies dormant, until they all wake up at the same time and simultaneously flood the root nameservers with requests. The most recent one of these was a few weeks ago. Took 4 of the roots out of commission for a brief period of time. Most people never noticed, since you need to lose about 8 roots before things start going to hell in a handbasket.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}