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

UFW Allow Port Not Working After Reboot: Fixes That Actually Work

You added a UFW rule to allow a port, it works fine until you reboot, then the port is blocked ag...

Fix OneDrive Sync 502 Bad Gateway Error

You open OneDrive and see a 502 Bad Gateway error when syncing files. This usually means a tempor...

Fix Chrome Not Working with Proxy on Ubuntu

You configured a proxy in Ubuntu, but Chrome ignores it or throws connection errors. This often h...

Fix kubectl Connection Refused Due to Certificate Issues

When you run a kubectl command and get a connection refused error, the problem is often network-r...

How to Configure Command Prompt for System Repair

When Windows won't boot or runs into persistent errors, Command Prompt often provides the tools t...

How to Fix '404 Not Found' File Path Errors in CMD