Software troubleshooting desk

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

Symptom

Cause

Fix route

Verify

Fresh repair notes

All notes

Fixing NGINX Upstream Connection Refused SSL Errors

When NGINX logs upstream connection refused for an SSL backend, it usually means the...

Cloudflare DNS Propagation Checklist: Verify and Speed Up Changes

When you change a DNS record in Cloudflare, the update doesn't take effect instantly everywhe...

Fix 'Port Already Used by Another Container' in Docker Compose

When you run docker compose up and see an error like port is already allocated...

Fix Cloudflare 522 Error with Nginx Configuration
You're seeing a Cloudflare 522 error: connection timed out between Cloudflare and your origin...

Fix 'Permission Denied' in VS Code When File Isn't Read-Only
You're editing a file in VS Code and get a 'Permission denied' error when saving, eve...

Fixing Nginx Upstream Connection Refused and Permission Denied
If you see connect() failed (111: Connection refused) or connect() failed (13:...


    Issue queue
Sitemap
Docker Compose Ports Not Working? Here's How to Fix
Update Git SSL Certificates to Fix 'unable to get local issuer'
Resolve Windows Update Error 0x80070005 via CMD
Resolve 0x800f081f Update Failure
React Breakpoints Not Hitting in VS Code? Here's How to Fix
How to Set Up Wildcard Subdomains in Cloudflare DNS
How to Fix WiFi Connected But No Internet on Windows 11
How to Remove Git index.lock File on Linux
How to Resolve 'Permission Denied' in VS Code Python Terminal
Recover from Detached HEAD in IntelliJ IDEA
How to Resolve Firefox Secure Connection Failed
Troubleshooting VS Code PowerShell Terminal Not Starting
Desk note

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