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Fix Nginx Permission Denied on Socket File - Resolve Cloudflare 521 Server Down Error-Nginx Redirect Loop: Server Block Fix

2026-07-28 06:08:16
Fix Nginx Permission Denied on Socket File - Resolve Cloudflare 521 Server Down Error-Nginx Redirect Loop: Server Block Fix

Result check

  • Keep one change per test run so you know which step helped.
  • Undo temporary changes after the issue is confirmed.

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