PostgreSQL Connection Issue on Apache/Passenger Server
🔧 Step-by-Step Guide: Fixing PostgreSQL Connection Issue on Apache/Passenger ✅ 1. Confirm PostgreSQL is Running Run: If it’s not running, start it: ✅ 2. Check […]
Firewall
TCP vs UDP: Key Differences Explained
TCP vs UDP: Key Differences Explained 🚀 Both TCP (Transmission Control Protocol) and UDP (User Datagram Protocol) are transport layer protocols, but they serve different […]
Difference Between Security Groups and NACLs in AWS
In AWS, Security Groups (SGs) and Network ACLs (NACLs) are both used for controlling inbound and outbound traffic to and from resources within a Virtual […]