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

Fix PostgreSQL Connection Refused on Port 5432

When you see psql: error: connection to server at ... failed: Connection refused on ...

How to Fix BitLocker Module Not Found or Permission Denied Errors

Fix Chrome ERR_CONNECTION_RESET Caused by Antivirus

You're browsing in Chrome and suddenly every page shows "ERR_CONNECTION_RESET". The connection dr...

Setting Up Outlook SMTP for Gmail: Step-by-Step Guide

If you're using Outlook and want to send emails through your Gmail account, you need to configure...

Fix Cloudflare SSL Errors After Switching to Full Strict

If you recently changed your Cloudflare SSL/TLS encryption mode to Full (Strict) and now see SSL ...

SSH Permission Denied (Publickey) on EC2: Setup Fixes

If you're seeing "Permission denied (publickey)" when trying to SSH into an AWS EC2 instance, the...