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Troubleshooting

How to Fix Nginx Redirect Loop in Server Block

You set up a server block in Nginx, but now the browser keeps redirecting—http to https, or www t...

Troubleshooting

Fix Nginx 'upstream connection refused' When Talking to PHP-FPM

You're seeing upstream connection refused in your Nginx error log, and your site...

Troubleshooting

Fix Remote Desktop Connection Failed Due to Network Level Authentication

You try to connect to a remote PC via Remote Desktop and get an error: "Remote Deskto...

Troubleshooting
How to Fix Windows Update Error 0x800f081f

Error 0x800f081f usually appears when Windows Update tries to install a feature update or a cumul...

Troubleshooting
Fix Git SSL Certificate Error: Unable to Get Local Issuer

If you see the error fatal: unable to access 'https://...': SSL certificate problem...
Troubleshooting Fixing Nginx Upstream Connection Refused and Permission Denied If you see connect() failed (111: Connection refused) or connect() failed (13:...

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