Knowledge base for software setup, errors, and daily tool work.

Fix 'git remote origin already exists' Error in GitLab

Fix Nginx Configuration Test Failure for Upstream Directive

When you run nginx -t and get an error involving the upstream directive...

Windows 10 Taskbar Icons Not Showing? Here's How to Fix It

You log into Windows 10, and the taskbar is nearly empty—no icons for open apps, pinned programs,...

Fix Windows Update Component Cleanup Error 0x800f081f

When running Disk Cleanup or the Deployment Imaging Service and Management Tool (DISM) to remove ...

Fixing Nginx 502 Bad Gateway in Docker: Practical Steps

You set up Nginx as a reverse proxy in Docker, but instead of your app you see a 502 Bad Gateway....