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Troubleshooting

Fix Cloudflare Origin Certificate Mismatch Errors

If you see 'Origin Certificate Mismatch' in Cloudflare or browser warnings, it usually me...

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Cloudflare SSL Full Strict Error 525 Fixes

If you see Error 525: SSL handshake failed when using Cloudflare with SSL set to...

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Cloudflare DNS Setup Propagation Not Completing: Fixes

You've updated your DNS records at Cloudflare, but hours later the changes still aren't s...

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Fix Nginx Upstream Connection Refused Timeout Error

When Nginx returns 502 Bad Gateway or logs upstream connection refused timeout...


                    
                    
                        
                            
                            
                                Troubleshooting
                                How to Create a New Branch from a Detached HEAD in Git
                                
If you see a message like "You are in 'detached HEAD' state" in Git, it means you...
                            
                        
                    
                    
                    
                        
                            
                            
                                Troubleshooting
                                Fix Nginx 502 Bad Gateway with Docker Multiple Containers
                                
If you run Nginx as a reverse proxy in front of multiple Docker containers, a 502 Bad Gateway err...



        
            
                
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                    Support Note
                     Test fixes in a non-critical profile first, keep backups for configuration files, and record exact error messages before changing settings.