Practical articles, in-depth tutorials, and architectural insights on software engineering, AI, and systems.
Learn how to trace the path of data packets across the internet and discover where your connection is failing or suffering from high latency.
Learn how to use the tcpdump command-line tool on Linux to capture and inspect network packets in real time, making complex troubleshooting easier.
Learn how to create an isolated network for smart devices using VLANs and firewall rules, preventing vulnerabilities from compromising your security.
Learn how to secure your Ubuntu server by configuring UFW practically. Discover how to open essential ports and block unwanted access.
Learn how to configure advanced firewall rules in UFW and integrate them with system logs to mitigate intrusion attempts on remote servers.
Learn step by step how to install and configure a dedicated DNS server with Pi-hole in your homelab to eliminate ads, trackers, and speed up local network browsing.
Learn how the Spanning Tree Protocol prevents broadcast storms in enterprise layer 2 networks. Master practical diagnostics and switch configuration to ensure uptime.
Learn the practical step-by-step guide to segment local networks using untagged and tagged ports in corporate managed switches.
Learn how to use mtr to combine traceroute and ping, pinpointing the exact router or hop causing instability in corporate links.
Learn how to secure your network edge against automated IP scans and intrusion attempts by combining the fail2ban log monitor with the modern nftables firewall.
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