Posts
Page 52 of 72
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Chaos Engineering: Break Things on Purpose Before They Break Themselves
Chaos engineering with Pumba for Docker container chaos and Toxiproxy for network failure simulation. Find the failures in staging before your users do in prod.
· Updated:9 min read -
The Header Your Reverse Proxy Keeps Dropping
Your backend logs every client as 127.0.0.1 because the proxy dropped the header. Set X-Forwarded-For, X-Real-IP, and X-Forwarded-Proto right in Nginx.
· Updated:6 min read -
Kernel Live Patching: Security Updates Without the 3am Reboot
Kernel live patching applies CVE fixes to a running kernel with no reboot, using kpatch or Canonical Livepatch. Setup for Ubuntu and RHEL, plus what it can't fix.
· Updated:8 min read -
You Should Be Testing Your Restores
You've got backups. Great. But do you know if they actually work? RTO and RPO mean nothing if you've never actually restored.
· Updated:5 min read -
IPv6 on Your Home Lab: You Should Care (Here's Why)
IPv6 isn't just for the future, it's broken on your network right now. Here's why you should care and how to actually set it up.
· Updated:8 min read -
DNS Over HTTPS and TLS: Encrypt Your DNS Before Your ISP Sells It
Your DNS queries go out in plain text, so your ISP logs every site you visit. This covers how DoH, DoT, and DoQ fix that, and how to self-host with AdGuard Home.
· Updated:8 min read -
Tmpfs vs Ramfs: When Your Disk Is Too Slow and Your RAM Is Just Sitting There
Tmpfs vs ramfs on Linux: mount RAM-backed filesystems for blazing-fast temp storage. Covers fstab, Docker tmpfs mounts, CI/CD use cases, and the key differences.
8 min read -
Log Rotation for Self-Hosted Apps
One app logging to one file becomes a 50GB disk emergency. logrotate config, size-based rotation, Docker log driver limits, and app-level log control.
5 min read -
ArgoCD vs Flux: GitOps, When Your Git Repo Is the Source of Truth
ArgoCD vs Flux for Kubernetes GitOps: compare UI-focused ArgoCD with automation-first Flux CD. Sync workflows, install examples, and when to use each.
8 min read -
Docker Health Checks: Because "It's Running" Doesn't Mean "It's Working"
Docker health checks for Dockerfiles and Compose: configure HEALTHCHECK for PostgreSQL, Redis, Nginx, and Node.js with intervals, retries, and depends_on.
· Updated:18 min read -
Prometheus + Grafana on Docker: Know When Your Server Is Crying Before It Dies
Set up a self-hosted Prometheus and Grafana monitoring stack with Docker Compose. Stop flying blind, get metrics, dashboards, and alerts in under 30 minutes.
· Updated:8 min read -
LangGraph vs CrewAI vs AutoGen: AI Agent Frameworks for Mere Mortals
Compare LangGraph, CrewAI, and AutoGen with real Python examples, local-LLM wiring for each, and a no-nonsense breakdown of which one to actually use.
· Updated:11 min read
