Software troubleshooting desk

Practical fixes for tool errors, setup blocks, and workflow issues.

Symptom

Cause

Fix route

Verify

Fresh repair notes

All notes

Nginx Redirect Loop: Common Causes and Fixes

You set up a redirect in nginx, but now your browser shows 'redirect loop' or 'too ma...

Nginx Upstream Connection Refused: Diagnosis and Fixes

When Nginx returns a 502 Bad Gateway or logs "upstream connection refused", it means Ngin...

Fix Nginx Configuration Test Failure on Location Directive

When you run nginx -t and see an error like [emerg] invalid location directive...

Fix Nginx Redirect Loop After SSL Setup
You've set up SSL on your Nginx server, but now visitors get stuck in a redirect loop—HTTP→HT...

Fix Chrome Certificate Error: Invalid Authority SSL Certificate
If Chrome shows 'Your connection is not private' with 'NET::ERR_CERT_AUTHORITY_INVALI...

Docker Compose Secret vs Environment Variable: When to Use Each
If you're writing a docker-compose.yml and wondering whether to put a value in <...


    Issue queue
Sitemap
Fix Docker Compose Network Not Found
Troubleshooting Cloudflare DNS Propagation Issues
Debugging Nginx Redirect Loops: Step-by-Step Guide
Troubleshooting node-sass Build Failure in npm
How to Remove a Stale Git Lock File
Windows Update Service Not Running Fix
How to Resolve Git Clone Connection Timed Out Over HTTPS
Resolving Cloudflare 521 Errors
Windows 11 Installation Assistant 99% Safe Mode Fix
Fix Docker Network Not Found Error: Step-by-Step
Troubleshooting Nginx 502 in Docker Multi-Container Environments
Docker Desktop Engine Stopped Hyper-V Error Guide
Desk note

    Troubleshooting paths
Home
Windows FixesmacOS HelpBrowser IssuesOffice ToolsDeveloper ToolsCloud SoftwareSecurity ToolsBackup RecoveryNetwork ToolsDatabase ToolsAI ToolsProductivity AppsCLI ErrorsDocker KubernetesEmail ClientsFile Utilities