
Troubleshooting
How to Fix Nginx Upstream Connection Refused on Port 80
When nginx logs show "upstream connection refused" while connecting to port 80, it means ...
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When nginx logs show "upstream connection refused" while connecting to port 80, it means ...

If you see a Cloudflare SSL error when using Full (Strict) mode, your origin server is not presen...

If you see "permission denied" when saving files, running terminals, or using extensions ...

When you run nginx -t and see "test failed", it means nginx found a problem ...

If Chrome crashes immediately upon launch, or opens to a blank page before closing, malware may b...

You see a Cloudflare 521 error page. The message says the web server is down. Often, this means y...
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