Networks by Rebrain: Траблшутинг сетевых сервисов.Инструменты и утилиты для диагностики

In this open practice session, Olga Yanovskaya, a network engineer and instructor, guides viewers through troubleshooting network services, covering the overall fault‑finding algorithm, ISO/OSI model layers, and diagnostics at physical, data‑link, network, transport, and application layers. The session includes practical examples, a test network diagram, and Q&A segments. Key timestamps: 00:00 – introduction; 00:58 – agenda; 02:55 – definition of troubleshooting; 04:06 – fault‑finding algorithm; 09:11 – ISO/OSI model; 19:44 – test network diagram; 22:06 – physical layer diagnostics; 31:48 – Q&A; 35:34 – data‑link diagnostics; 47:48 – network layer diagnostics; 53:54 – transport layer diagnostics; 01:08:49 – application layer diagnostics; 01:28:17 – REBRAIN programs; 01:33:05 – final Q&A.