DevOps automation
Caddy is a web server and reverse proxy that can manage HTTPS certificates automatically. A reliable production setup needs a clear configuration path, persistent certificate storage, a reload procedure, and checks that distinguish a running proxy from a healthy application. This guide starts with those essentials, then covers Docker, reverse
DevOps automation
A cron job is a scheduled task that runs automatically on Linux at fixed intervals, every minute, daily at 3 AM, or on the last Friday of every month. The cron daemon handles the scheduling, running quietly in the background like a personal assistant that never sleeps. System administrators rely
incident response
Everyone's building AI-powered anomaly detection these days. Machine learning models trained on your metrics, neural networks that understand your seasonal patterns, algorithms that promise to catch the unknown unknowns. It's impressive tech, and the demos look fantastic. But here's what the vendors won'
uptime monitoring
In financial services, every minute of downtime doesn't just anger users, it triggers regulatory scrutiny and potential fines. While your typical SaaS company might shrug off a few minutes of downtime with a status page apology, financial institutions face a completely different reality. The moment your trading platform
observability
When your Prometheus server needs 64GB RAM just to track which user clicked which button, you've got a cardinality problem. Someone adds a user_id label to track user behavior, suddenly metrics storage balloons from gigabytes to hundreds of gigabytes, queries start timing out, monitoring bills triple overnight,
DevOps automation
Your Kubernetes cron jobs are probably failing silently right now, and you have no idea. You migrate your perfectly good cron jobs to Kubernetes, pat yourself on the back for being "cloud native," and then discover weeks later that your database backups haven't run since the
server monitoring
You're staring at a server that feels sluggish. Users are complaining. You fire up top and see CPU usage sitting at 50%. Plenty of headroom, right? So why does everything feel like it's wading through mud? The answer usually lives in a number you might be
devops security
Your security team said no to opening monitoring ports, but your services still need 24/7 oversight. Here's how to monitor everything while keeping your firewall locked down. I get it. You've got a bunch of internal services running behind firewalls, and the security folks are
server monitoring
The scariest server problems aren't the ones that trigger alerts, they're the ones that slowly degrade performance while flying under your monitoring radar. You know the pattern. Everything looks fine on the dashboards. CPU usage is normal, memory's stable, disk space isn't
server monitoring
While everyone's optimizing Docker images for size, most are still using heavyweight monitoring solutions that contradict their efficiency goals. You've stripped your Alpine images down to 5MB, configured multi-stage builds, and argue about whether to use scratch as your base image. But then you slap on
observability
When Prometheus Runs Out of Room You've got Prometheus running, it's scraping your endpoints every 15 seconds, Grafana dashboards look great, and alerting is working. Life is good. Then someone asks "can we look at metrics from six months ago?" and you realize your
devops security
What Is TLS On-Demand in Caddy? Caddy is famous for making HTTPS easy. Normally, you pre-configure domains, and Caddy automatically fetches and renews certificates from Let’s Encrypt or ZeroSSL. But what if you don’t know all the domains in advance? That’s where TLS On-Demand comes in. Instead