Practical articles, in-depth tutorials, and architectural insights on software engineering, AI, and systems.
Learn how to configure network redundancy and automatic failover on Linux servers using systemd-networkd, ensuring high availability without complex tools.
Learn how to use mtr combining traceroute and ping to identify congested network hops or hardware failures in transit.
Learn how to quickly automate network diagnostics on Windows by natively redirecting ipconfig and ping outputs directly to text files.
Learn how to configure native network failover in systemd-networkd by creating alternative static routes and monitoring links without external scripts.
Learn how to use the tcpdump command-line utility to capture network packets, filter specific ports, and diagnose connectivity issues quickly.
Learn how static domain name mapping works, where the hosts file is located on Windows and Linux, and how to clear DNS cache for immediate changes.
Learn the fundamental concepts of packet filtering on the network layer using iptables on Linux, covering practical tables, chains, and security policies.
Learn how to debug name resolution problems, response times, and corrupted records directly in the Linux terminal using the dig command.
Learn how to replace the legacy netstat utility with the advanced ss command on Linux to inspect open sockets, track ports, and audit network traffic.
Learn how to configure failover and load balancing on pfSense using multiple internet links, firewall routing rules, and packet loss monitoring.
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