6 days ago · devops

I’ve SSH’d Into EC2 Dozens of Times. This One Still Took 4 Hours!

The Problem Yesterday I spent four hours trying to SSH into an EC2 instance. I tried from both macOS and Windows terminals, suspecting a local system issue, bu...

3 weeks ago · devops

AWS VPC

What is AWS VPC? An AWS Virtual Private Cloud VPC is a logically isolated network inside AWS where you can launch resources such as: - EC2 instances - Database...

0 month ago · devops

I Thought My AWS EC2 Was Secure — Until I Checked My Security Groups

Why I Thought My EC2 Instance Was Secure Like many beginners, I focused on getting things to work: - The EC2 instance launched successfully - SSH access worked...

1 month ago · devops

Quick Start: Build a Ready-to-Use AWS VPC in Minutes

In this hands‑on guide you’ll build a ready‑to‑use AWS networking environment in just a few minutes. You will create a fully functional VPC with public and priv...

1 month ago · devops

[AWS] 2. EC2 (Elastic Compute Cloud) Instance Fundamentals, SSH

Amazon EC2 Overview - EC2 Elastic Compute Cloud – Infrastructure as a Service IaaS - Core capabilities: - Renting virtual machines 가상 머신 임대 - Storing data on v...