“DNS is down and nothing is working!” is not something anyone ever wants to hear at 3am. Virtually every service on a modern network depends on DNS to function. When DNS goes down, you can't send mail ...

After months of issues, they have finally restored my access to my blog! After such a hiatus, it is my pleasure to bring this particular post. I’m certain many will find it at the very least cool in ...

Anycast isn’t necessarily a closed door for stateful network services. One common use of Anycast now is to build a poor man’s CDN (yes, lots of poor men are building network services today). The ...

PAID FEATURE In October 2021, in an incident lasting more than six hours, Facebook disappeared from the Internet. This wasn’t a temporary .com outage on the company’s primary domain but a complete ...

The two DNS root servers "badly affected" by last month's intense denial-of-service attack were the only two targeted that have not yet installed the Anycast load balancing technology, according to a ...

so, this is my first foray into dynamic routing and so far i have accomplished a minimum amount of setup in my environment. i have a linux based router running ospf, and two linux servers ...

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