networking
-
Solved: Is cat.1 ok for homelab?
Don’t use a Cat.1 cable for your homelab. Learn why this ancient telephone standard causes intermittent network failures and what to use for a reliabl Continue reading
-
Solved: Big guys are turning your startup into a dropdown menu
Tired of cloud providers turning your startup into a dropdown menu? A DevOps guide to the DNS CNAME issue and three concrete ways to reclaim your doma Continue reading
-
Solved: “Are you sure you’ve been a network engineer before?”
A stubborn JVM DNS cache can ruin a database failover. Learn why your Java app ignores DNS updates and discover three real-world solutions for DevOps. Continue reading
-
Solved: Multi primary VRRP/CARP net loadbalance setup
Learn why using VRRP/CARP for multi-primary load balancing fails. Understand ARP flux and discover robust, production-ready high availability patterns Continue reading
-
Solved: What skill would you learn in 2026 if you had to start from zero?
Learn which DevOps skills to master for 2026. This no-hype guide reveals three pragmatic career paths built on timeless fundamentals, not fleeting tre Continue reading
-
Solved: First IT job, solo IT here – asked to upgrade our office network rack, need advice
First IT job and tasked with a network rack cleanup? Don’t get fired! A senior engineer shares 3 real-world strategies to do it safely without an outa Continue reading
-
Solved: Does TCP/IP have 4 layers or 4..?
Forget the TCP/IP 4 vs. 5 layer debate. Learn the practical mental model senior engineers actually use to troubleshoot real-world network issues. Continue reading
-
Solved: A routing issue I cannot figure out, any help appreciated
Struggling with a Linux server replying on the wrong interface? Learn the cause of asymmetric routing and get 3 real-world fixes to solve this common Continue reading
-
Solved: Dry Alarm Contacts on Routers & Switches – Does anybody actually use them?
What are dry alarm contacts on your router or switch? Learn why this out-of-band alert system is crucial for preventing outages when SNMP fails. Continue reading
-
Solved: After spending a lot of time looking at your setups, I decided to take the plunge and start this hobby
Overwhelmed starting your homelab? A senior engineer breaks down common networking pitfalls and provides three solutions to get your services talking. Continue reading