Ethernet, ARP, and Neighbor Discovery Explained
Learn how Ethernet frames, switches, VLANs, ARP, and IPv6 Neighbor Discovery deliver packets on a local link, with Linux diagnostics and failure examples.
Posts tagged with #linux
IP Routing and NAT: How Packets Cross Networks
Learn how routers choose paths with routing tables, longest-prefix match, and gateways, then see how NAT and port translation change packets at network edges.
TCP Congestion Control: Flow, Loss, and Fairness
Learn how TCP congestion control limits traffic, responds to ACKs and loss, and affects throughput, latency, and fairness, with Linux inspection commands.
Linux Service Management and Runtime Environments
Learn to run backend services with systemd, manage environment-specific configuration, diagnose startup failures, and deploy safer Linux processes.
Crash Dump Analysis: HsErr Files, Core Dumps, SIGSEGV
Learn how to analyze JVM crash dumps, interpret HsErr files, extract meaningful data from core dumps, and debug native SIGSEGV errors in Java applications.
Performance Profiling
Master Linux performance profiling with perf, ftrace, BCC tools, and flame graphs to identify and eliminate kernel bottlenecks.
Installing and Configuring Git: Complete Guide for Windows, macOS, and Linux
Hands-on tutorial for installing Git on Windows, macOS, and Linux with initial configuration steps, verification, and troubleshooting.