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Latest Troubleshooting Guides

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Troubleshooting

Fixing Nginx Upstream Connection Refused on Port 443

You see "upstream connection refused" in your Nginx error log when proxying requests to p...

Troubleshooting

Fix Docker Registry Authentication Failed Access Denied

You try to pull or push an image from a private Docker registry and get an error like authe...


                    
                    
                        
                            
                            
                                Troubleshooting
                                How to Fix Nginx Redirect Loop That Prevents Site Loading
                                
You open your site, and the browser keeps loading until it times out or shows a redirect error. T...
                            
                        
                    
                    
                    
                        
                            
                            
                                Troubleshooting
                                Fix Git SSL Certificate Problem on macOS: Unable to Get Local Issuer
                                
If you're seeing fatal: unable to access 'https://...': SSL certificate problem...

                            

                        
                    

                    
                    
                        
                            
                            
                                Troubleshooting
                                Docker Container Exits Immediately: Diagnosing Out of Memory
                                
You start a Docker container and it exits within seconds. The logs show nothing obvious, or they ...
                            
                        
                    
                    
                    
                        
                            
                            
                                Troubleshooting
                                Fix Chrome Access Violation Error on Mac
                                
If you see an "access violation" error in Chrome on your Mac, it usually means the browse...



        
            
                
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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.