The API is 500ing and it's 3am. A field guide.
What actually breaks servers at night — disk, OOM, certs, connection pools — the commands that reveal each one, and the mistakes tired engineers make.
Your disk is at 89%. Here's how the pros find what's eating it.
The exact triage sequence for a full Linux disk — df vs du lies, deleted-but-open files, inode exhaustion, and the cleanups that are actually safe to run.
Should an AI agent ever touch your production servers?
The honest case for and against agents on infrastructure — what actually goes wrong, why prompt injection changes the math, and the architecture that makes it survivable.
From bare VPS to production in one sitting (without locking yourself out)
The canonical Ubuntu server setup — users, SSH keys, UFW, fail2ban, swap, Node, nginx, TLS — in the right order, with the classic footguns labeled.
How the approval gate keeps an agent from getting root
A look at the default-deny risk gate — the allowlist, the metacharacter check, and why the agent's channel is isolated from your terminal.
Who can SSH into your server right now? You probably don't know.
A practical SSH access audit — enumerating authorized_keys across every user, catching stale keys and NOPASSWD sudo, and hardening sshd without locking yourself out.
Introducing Tryssh — SSH made agentic, not reckless
A native macOS SSH workspace with an agentic copilot that runs commands, provisions servers, and audits security — while you approve every step.