One 5G frame, two security contexts — reading a decrypted NR attach
A 5G radio capture can be encrypted twice over, by two separate networks holding two different sets of keys. Wireshark work-item 19757 published a 5…
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Your DHCP server is handing out addresses it never checked
Tested on Windows Server 2025 (24H2, build 26100.33296) A machine boots, gets a 169.254.x.x address, and has no network. The DHCP server is up. The…
F1-U flow control: how a 5G base station's two halves stay in step
In 5G, the gNB is not a single box. Under the 3GPP higher-layer split (TS 38.401), a Central Unit owns the upper radio-protocol layers, and one or m…
Как работает эта ваша суриката 3 часть
Третья часть цикла статей по разбору устройства работы IDS/IPS решения Suricata. Разберём на практике уязвимость CVE‑2025‑66698 – обход аутентификац…
Learning DevOps from First Principles: MAC Addresses vs IP Addresses — The Difference Finally Clicked
One of the first networking concepts that confused me was this: Why does a computer need both a MAC address and an IP address? At first glance, they…
[Перевод] Декодируем трафик Zabbix Proxy для быстрого устранения неполадок
Обычно для базовой диагностики прокси достаточно просто заглянуть на страницу администрирования Zabbix proxy или посмотреть метрики состояния прокси…