Logbook of a Network Admin. SD-WAN, automation with Python/NestJS and the transition to modern architectures.
n8n is an automation tool that provides freedom and control through self-hosting and flexibility with custom code. This makes it a cost-effective and appealing option for technology enthusiasts and professionals.
This guide addresses the critical risk of losing valuable data erroneously trapped within the writable layer of a live Docker container due to misconfigured persistence. The data rescue is accomplished using core Docker utilities like creating a container snapshot via `docker commit` or extracting raw files directly to the host using `docker cp`. These steps enable the safe transition of application data to permanent Docker Volumes or Bind Mounts.
This content addresses network operational inefficiency and performance degradation in LANs resulting from the misuse of Layer 1 (Hubs) versus Layer 2 (Switches) devices. The solution emphasizes switches as critical infrastructure components that intelligently direct unicast traffic via MAC addresses, thereby reducing collisions and optimizing bandwidth using key technologies like VLANs and QoS for advanced traffic management.
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