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Building a Real SIEM Lab on a Mac Mini Fleet — What Actually Broke, and What I Learned Fixing It

Most "I built a home SOC" posts show you the pretty dashboard and stop there. This one is about what happened after the dashboard loaded — because that's where the real learning was. 🖥️ The setup Three Mac Minis, one control machine, all Ubuntu. Mac Mini 1 runs the Wazuh manager, indexer, and dashboard — the security monitoring core. Mac Mini 2 handles AWS IAM permission scanning (Cloudsplaining, ScoutSuite). Mac Mini 3 is a documentation hub plus a custom vulnerability-intelligence pipeline pulling from the NVD API and NIST's CPRT compliance framework data. A fourth machine, my daily driver, orchestrates all three over SSH. Today's goal: get every machine reporting into Wazuh, so I'd have real, fleet-wide visibility — not just a single monitored box. 🐛 Bug #1: the silent feed stall After installing the Wazuh agent on Mac Mini 3, vulnerability scanning just... sat there. The log showed Initiating update feed process and then nothing. No error, no timeout, no progress. I ruled things out methodically: DNS resolved fine, curl could reach Wazuh's CTI feed endpoint and complete a full TLS handshake, disk space was nowhere close to full, and there were no stale lock files sitting around. Every individual piece of the pipeline worked in isolation — but the feed download itself never completed. The actual fix: upgrade Wazuh from 4.14.5 to 4.14.6. A newer point release fixed whatever was silently stalling the content-updater module. Once upgraded, the feed downloaded, decompressed, and the scanner came alive within minutes. Lesson: when every individual network/system check passes but a specific module still won't progress, check for a version-specific bug before going deeper down the debugging rabbit hole. 🔒 Bug #2: locking myself out with fail2ban Mid-troubleshooting, my control machine's SSH connection to Mac Mini 3 started getting flatly refused — no prompt, no error, just Connection refused. Ping worked fine. Every other port responded. Just port 22, silently dead. fai

2026-07-17 原文 →
AI 资讯

4 self-hosting failures that return success

The failures that cost me the most in three years of self-hosting were never the ones that threw an error. An error is a gift: it tells you where to look. The expensive ones are the failures that report success while being broken . A page that returns 200 OK . A healthcheck that says the container is fine. A backup that exits cleanly. A command that prints nothing wrong. Everything green, everything lying. Here are four of them, all from the same box (a 2016 desktop, i7-6700 / 32 GB, Docker behind Caddy, reachable only over Tailscale). Each fails by handing you a success signal. Each cost me an evening the first time. The fixes are boring once you know them, the point is knowing the failure exists. Sanitized skeleton with all the config at the end. 1. A loading page that returns 200 This one I could find nothing written about, so it cost me the most. To keep the box quiet, I run the heavy services on-demand: Sablier stops idle containers and starts them on the first request. Caddy (with the Sablier plugin) gates a virtual host behind a container group, serves a "please wait, starting up" page while the group boots, then proxies through: myhost . my - tailnet . ts . net : 8081 { route { sablier http :// sablier : 10000 { group office session_duration 30 m } reverse_proxy nextcloud : 80 } } I gate my whole Nextcloud vhost, WebDAV included, this way. And here is the silent failure: if the gated group is not healthy, Sablier serves that HTML loading page for every request, and it serves it with 200 OK . A browser shows a spinner, fine. But my Obsidian vault syncs over WebDAV, and a WebDAV client asking for a directory listing got a 200 with a chunk of HTML instead of the XML it expected. Sync died with a cryptic no root multistatus found . Nextcloud itself was up and perfectly healthy the whole time. Every uptime check I had was green, because the gate in front kept answering 200 . The structural lesson: the moment you put a service on-demand behind a reverse proxy, tha

2026-07-14 原文 →
AI 资讯

The .gitleaks-baseline.json That Suppressed Live Production Secrets

Originally published at woitzik.dev A previous article here covered setting up gitleaks for homelab secret scanning - the setup, the pre-commit hook, getting CI to fail on new commits that contain secrets. The setup was correct. The tool was running. The CI was green. And it had been quietly suppressing a live production credential for months. This is the follow-on story: not about getting gitleaks running, but about the specific way a baseline file breaks the guarantees you think you have once it's in place. View the complete homelab infrastructure source on GitHub 🐙 What a Baseline File Does (and Is Supposed to Do) When gitleaks first runs on an existing repo, it finds every secret-shaped string in the full git history - including secrets that were introduced years ago, rotated long since, and are completely inert. Flagging those in CI creates noise that causes developers to tune out gitleaks entirely, which is worse than not having it. The baseline workflow is the standard answer: run gitleaks on the current state, export all findings to a JSON file, commit that file to the repo, and tell gitleaks to suppress any finding that already appears in the baseline. Future commits that introduce new secrets still fail; old known-inert findings don't. # Generate baseline from current HEAD gitleaks detect --report-format json --report-path .gitleaks-baseline.json # Tell gitleaks to use it gitleaks detect --baseline-path .gitleaks-baseline.json The assumption embedded in this workflow: findings that appear in the baseline are inert. They were there before the baseline was generated; they've been there; they're known. The Assumption That Broke It The baseline was generated at a point when the repo contained Garage's rpc_secret and admin_token committed in a YAML file. Those were real production values - the cluster was live, using those exact secrets - but the baseline suppression treated them as "known, reviewed, not a problem." The commit that introduced them had happened

2026-07-13 原文 →
开发者

How Philips Hue got the smart home right

The state of the smart home can be frustrating, because it is just so obvious how things ought to work. You should be able to control everything from everywhere. Your spaces should adapt to what you're doing and how you're feeling. Making your home smart shouldn't require renovating, and the smarts should be mostly invisible. […]

2026-07-12 原文 →
开发者

Google’s Nest Thermostat has hit its best price of the year

If you’re looking for a relatively affordable way to cut down on cooling costs, Google’s Nest Thermostat can help. It’s packed with smart controls and energy-saving features, and right now it’s on sale in white for $79 ($50 off), which is its best price of the year, at Amazon. The smart thermostat is quick to […]

2026-07-10 原文 →