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

SSH Host Key Verification Failed: Troubleshooting Checklist

When you connect to a remote server via SSH and see "WARNING: REMOTE HOST IDENTIFICATION HAS CHAN...

Fix Nginx 404 on All Pages Except Index

If your Nginx server loads the index page but returns 404 on all other pages, the issue is almost...

Fix Firefox Profile Missing on Linux Terminal

If Firefox starts with a blank profile or shows a 'profile missing' error on Linux, the profile f...

Fix Windows Defender Conflicts with Third-Party Antivirus

You may see error messages like "Windows Defender can't start due to a dependency conflict" or no...

How to Fix systemd Service Restarting Repeatedly Error