Fix Docker Compose 'Port Already Allocated' for MySQL - Fix ERR_NAME_NOT_RESOLVED in Chrome by Resetting DNS-Git Unrelated Histories Error – Quick Fix Guide

Updated 2026-07-28 08:32:05security-tools
Fix Docker Compose 'Port Already Allocated' for MySQL - Fix ERR_NAME_NOT_RESOLVED in Chrome by Resetting DNS-Git Unrelated Histories Error – Quick Fix Guide
Before changing system settings, save your work and note the exact error text so you can compare results after each step.

Extra verification checklist

  • Restart the affected app after changing permissions or configuration files.
  • Test the same workflow in a clean browser profile or a temporary user account.
  • Compare the result on another network if the error may be connection related.