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Fix Git SSL Certificate Problem: Unable to Get Local Issuer - Troubleshooting Nginx Upstream Connection Refused in Docker-Python Virtual Environment Activation Issues on Ubuntu

2026-07-28 19:10:29
Fix Git SSL Certificate Problem: Unable to Get Local Issuer - Troubleshooting Nginx Upstream Connection Refused in Docker-Python Virtual Environment Activation Issues on Ubuntu

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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