Practical articles, in-depth tutorials, and architectural insights on software engineering, AI, and systems.
Learn how to use iperf3 to measure network performance between your Docker microservices. Easily identify bandwidth limits and latency in your virtual networks.
Learn how to segment your network using VLANs. See how to set up access and trunk ports to secure traffic for IoT devices and critical servers.
Learn how to use tcpdump to capture TCP and UDP packets on specific ports and troubleshoot communication failures on Linux servers.
Master the command-line tool for HTTP requests. Learn how to simulate verbs, send JSON payloads, and debug API responses with curl.
Learn how the browser Same-Origin Policy works and discover how to properly configure HTTP headers on your server to allow cross-origin requests securely.
Learn how the traceroute command works in practice. Discover how to identify each hop between routers and pinpoint where latency occurs in your network.
Learn how to use tcpdump on the Linux command line to capture packets, diagnose TCP handshake failures, and trace application latency bottlenecks.
Learn how to implement internet redundancy and automatic failover on OpenWrt routers using gateway monitoring scripts and traffic balancing.
Learn how to configure Wake-on-LAN on Linux step by step. Adjust ethtool, map MAC addresses, and power on remote workstations over your local network.
Learn how to use FFmpeg in the command line to diagnose packet drops, visual artifacts, and corrupted frames in security camera RTSP streams.
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