Tag: Docker

Oct 10, 2026 ·

Asif Mughal · 62

Docker Ignores Your UFW Rules. Here's How to Check Your Own Server

Docker writes its own firewall rules, so UFW can say a port is blocked while a container port stays open to the internet. Here is how to check your own server and fix it three ways.

Oct 4, 2026 ·

Asif Mughal · 125

CVE-2026-87902: A Critical WordPress Core RCE Flaw Under Active Attack

CVE-2026-87902 is a critical WordPress core RCE flaw, no plugin needed, affecting every version from 4.7 through 7.1.1. Here's how it works, why Docker and cPanel setups are affected by default, and what to check if you were already hit.

Sep 18, 2026 ·

Asif Mughal · 118

Nginx Shows 502 But Your App Is Running? Check This IPv6 Localhost Trap

Nginx shows 502 Bad Gateway but your app is confirmed running? Check for an IPv4 vs IPv6 localhost mismatch in proxy_pass. Here is how to spot it in the error log and the one-line config fix.

Sep 16, 2026 ·

Asif Mughal · 76

Your Build Pipeline Runs npm Install Too. Here's How to Protect It From Supply Chain Attacks

2026 has had a steady run of npm supply chain attacks hitting packages with hundreds of millions of weekly downloads. If your build pipeline runs npm install for Tailwind or Vite, you're exposed too, even if PHP is your main language. Here's how to actually reduce that risk.

Sep 16, 2026 ·

Asif Mughal · 78

Let's Encrypt Is Shortening Certificate Lifetimes. Here's Why Caddy Users Don't Need to Worry

Let's Encrypt is shortening certificate lifetimes over the next few years, and a lot of advice is telling people to check their renewal automation. If you use Caddy, here's exactly why you almost certainly don't need to do anything.

Sep 16, 2026 ·

Asif Mughal · 71

Caddy 2.11.3 Broke Multi-App Configs. Here's What Changed and How to Fix It

Caddy 2.11.3 shipped a regression that breaks Caddyfiles using multiple localhost-based site blocks on different ports, exactly the pattern from our multi-app VPS guide. Here's how to check if you're affected and why updating to 2.11.4 matters.

Aug 30, 2026 ·

Asif Mughal · 94

SQLSTATE[HY000] [2002] Connection Refused in Laravel and Docker

This error means your Laravel app could not reach the database at all. It is almost always one of two causes: a wrong DB_HOST, or your app starting before MySQL is actually ready inside Docker. Here is how to tell which one you have, and the real fix for each.

Aug 28, 2026 ·

Asif Mughal · 133

Fix Caddy 502 Bad Gateway With Docker Compose (Step-by-Step Diagnosis)

Caddy showing 502 Bad Gateway for a containerized app? Diagnose it in the right order — Docker networking, bind addresses, port mismatches, and startup races — instead of guessing.

Aug 28, 2026 ·

Asif Mughal · 235

Docker Won't Restart an "Unhealthy" Container — Here's What Actually Will

Docker doesn't restart a container just because it's marked unhealthy — that's the single most common misconception in self-hosted Docker setups. Here's how healthchecks and restart policies actually relate, and the exact setup that makes a self-hosted app genuinely recover on its own.

Aug 24, 2026 ·

Asif Mughal · 188

How to Host Multiple Apps on One VPS With Docker and Caddy

How to run several apps on a single cheap VPS using Docker and Caddy — shared network setup, working Caddyfile examples, free auto-renewing HTTPS per subdomain, and when label-based routing is worth the switch.