A Jump Box, also known as a Bastion Host, is a secure server specifically configured to act as the single entry point for administrators accessing a private or sensitive network. It is typically hardened and monitored, reducing the attack surface by limiting direct access to internal systems. Administrators connect to the Jump Box first, then use it as a gateway to reach other servers within the protected network. This setup helps enforce security policies, enables detailed logging of access, and simplifies management of authentication and permissions. Jump Boxes are commonly used in cloud and enterprise environments to safeguard critical infrastructure.