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Prevent Git Index Lock File Creation: Practical Fixes

If you see fatal: Unable to create 'path/to/.git/index.lock': File exists., ...

Fix Nginx 'upstream connection refused' When Talking to PHP-FPM

You're seeing upstream connection refused in your Nginx error log, and your site...

Fix DNS Probe Finished NXDOMAIN on Google DNS Setup

If you see "DNS probe finished NXDOMAIN" in your browser, it means your device couldn'...

Fix Chrome Certificate Error: Invalid Authority & Date/Time Issue

You're browsing in Chrome and see a full-page warning: Your connection is not private...

Fix Git SSL Certificate Problem on Windows: Unable to Get Local Issuer
If you see fatal: unable to access 'https://...': SSL certificate problem: unable t...

Git Merge Conflict Checklist Before Merging You're about to merge a branch, but you've been burned by merge conflicts before. This ch...

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