Why do routing and DNS problems still lose me?
You can restart a switch. Patch a cable. Reset a router. Good — that's the part everyone learns first. It's visible. It's forgiving. Routing tables and DNS don't work that way. They hide. They fail quietly, three steps removed from where you're looking. This isn't a talent gap. You haven't yet traced a packet from source to destination, hop by hop, with nothing to guess. You've watched others do it, or read about it, and mistaken that for doing it yourself. The fix isn't another course. It's fewer excuses about complexity. Pick one real problem, however small. Refuse to move on until you understand every hop.
You fixed what was easy. What remains is what you haven't practiced under pressure. Routing and DNS aren't harder — you just haven't built them by hand enough times to see them clearly. Choose one broken system. Trace it end to end. Stop reading about it and start doing it.
What changes unlock by starting
- You trace a routing failure to its real cause instead of guessing.
- You explain DNS resolution in your own words, not borrowed ones.
- You reach for outside help less, and your own reasoning more.
- You build a working lab you understand end to end, not just followed steps in.