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Fix Nginx Upstream Connection Refused Error - Fix Git Push Rejected: Non-Fast-Forward Error-Git Rebase Error: index.lock File Exists – Solution

2026-07-28 20:49:55
Fix Nginx Upstream Connection Refused Error - Fix Git Push Rejected: Non-Fast-Forward Error-Git Rebase Error: index.lock File Exists – Solution

Result check

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

Next references

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