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Ранее мы писали о MakerAsia, когда рассказывали об их корпусе расширения KBX для платы Kidbright ESP32. Сейчас компания выпустила новый продукт, но это не аппаратная платформа, а KB-IDE-это открыта…

The Domain Name System (DNS) is a distributed database which maps domain names to IP addresses, and a core piece of Internet functionality. We’ll take a look at the history of the DNS, the original design, how it works, and how things have changed over the years.

Pedro Marcos

ASPP is a technique that inflates the AS path---a BGP attribute. Since the length of the AS path is the second tie-breaker in the BGP best-path selection, ASPP can steer traffic to other routes. Despite being simple and easy to use, among operators and researchers the appreciation of ASPP is diverse. Some have questioned its need, effectiveness, and predictability, as well as voiced security concerns. Inspired by this controversy, we revisit ASPP. Our longitudinal study shows that ASes widely deploy ASPP, and its utilization has slightly increased despite public statements against it. We surprisingly spot roughly 6k ASes originating at least one prefix with prepends that achieve no ITE goal.

With active measurements, we show that ASPP effectiveness as an ITE tool depends on the AS location and the number of available upstreams; confirm that ASPP security implications are practical; identify that more than 18% of the prepended prefixes contain unnecessary prepends that achieve no apparent goal other…