When NTP interactions go wrong
Guest Post: A walkthrough of an issue involving NTP interactions that resulted in severely incorrect dates.
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When it’s not DNS, it’s probably NTP
An intriguing detective story about debugging a chain of problems.
NTP Pool: The Internet timekeeper
Guest Post: How does the NTP Pool map clients to NTP servers and how can it be improved?
Securing NTP against MITM attacks
Guest Post: The Network Time Protocol has no security mechanisms. How to fix it.
Publishing IPv6 NTP servers with DHCPv6
Guest Post: Learn how to navigate through the relevant RFCs associated with publishing IPv6 NTP servers with DHCPv6.
Taking a closer look at the NTP pool using DNS data
Guest Post: About 3% of the domain names requested by the NTP pool are invalid, and almost all the invalid domain names have never provided time synchronization services.
Network Time Security: new NTP authentication mechanism
Guest Post: Network Time Security is a new authentication scheme for Network Time Protocol.
Observing the DDoS landscape requires collaboration
Guest Post: An industry-academic analysis on trends in direct-path and reflection-amplification attacks to encourage greater common understanding of the DDoS landscape.
Three of the best: George Michaelson
In 2024, George Michaelson touched on topics ranging from news to explainers. Here are three of George’s best.
The ultimate weapon against DDoS — BGP Flowspec
Guest Post: How to filter malicious traffic directly at the network edge, without third-party scrubbing centres.