Bastionisäntäpalvelimet

Bastionisäntäpalvelimet, often referred to as bastion hosts or jump servers, are specialized computer systems designed to provide a secure gateway to a private network from an external network, such as the internet. Their primary purpose is to act as a hardened, single point of entry, protecting internal resources from direct exposure.

These servers are typically configured with minimal services and applications, reducing the attack surface. All unnecessary software and network ports are disabled. Strict security measures are implemented, including robust authentication mechanisms, regular security patching, and continuous monitoring for suspicious activity. Access to the bastion host itself is usually restricted to authorized administrators.

Users intending to access internal systems must first connect to the bastion host. From the bastion host, they can then initiate further connections to other servers within the private network. This approach centralizes access control and auditing, making it easier to track who is accessing what resources and when. By not allowing direct access to internal servers from the outside, the risk of direct compromise to critical infrastructure is significantly diminished. Bastionisäntäpalvelimet are a fundamental component of layered security strategies in many organizations.