What is a Jumpbox, and How to Use it in AWS?
What’s a Jumpbox? A jumpbox (aka bastion host) is a secure server designed to act as a gateway for accessing resources in a private network. Think of it as your golden bridge—without it, you wouldn’t reach the other side. Key Features of a Jumpbox: Enhanced Security: It limits SSH or RDP access to a single entry point, reducing your attack surface. Access Control: Only authorized users can connect, often via specific IP whitelisting or VPN. Auditing: All actions passing through the jumpbox can be logged for accountability. In AWS, jumpboxes are typically EC2 instances with tight security group rules that allow inbound connections from your IP and outbound connections to resources like RDS instances. ...