Visit complete Cyber Security roadmap

← Back to Topics List

Jump Server

A jump server, also known as a bastion host or jump host, is a critical security component in many network architectures. It is a dedicated, locked-down, and secure server that sits within a protected network, and provides a controlled access point for users and administrators to access specific components within the system. This intermediate server acts as a bridge between untrusted networks and the internal privileged systems, thereby reducing the attack surface and securing the environment.

Key Features

  • Isolation: The primary function of the jump server is to provide a level of isolation between the outside world and critical network infrastructure. Users must first authenticate on the jump server before accessing the target systems.
  • Access Control: Jump servers enforce strict access control policies by allowing only authorized users and administrators to access the privileged systems.
  • Monitoring: All activities on the jump server are logged and monitored, creating an audit trail for any suspicious activity or attempts at unauthorized access.
  • Patching and Updating: Jump servers are kept up-to-date with the latest security patches and updates, ensuring that they are resilient to new vulnerabilities and attacks.

Best Practices for Implementing a Jump Server

  • Implement Multi-Factor Authentication (MFA): Require multiple forms of authentication to access the jump server. This reduces the risk of unauthorized access through stolen or weak credentials.
  • Restrict User Privileges: Limit user privileges on the jump server to minimize the potential for unauthorized actions. Users should only be granted the minimum permissions needed to perform their tasks.
  • Harden the Operating System: Configure the jump server’s operating system with security best practices in mind. This includes disabling unnecessary services, applying least privilege principles, and regularly updating the system with the latest patches.
  • Employ Network Segmentation: Deploy the jump server in a separate network segment from the rest of the environment. Implement strong firewall rules and access control lists (ACLs) to control traffic between the segments.
  • Monitor and Audit: Regularly monitor and review the logs and activity on the jump server to detect and investigate security incidents. Enable security alerts and notifications for suspicious activities.

In summary, a jump server is a crucial security component that helps protect sensitive network environments by providing isolation, access control, and monitoring. By properly configuring and managing a jump server, organizations can significantly reduce the risk of unauthorized access and potential security breaches.

Community is the 6th most starred project on GitHub and is visited by hundreds of thousands of developers every month.

Roadmaps Best Practices Guides Videos Store YouTube by Kamran Ahmed

Community created roadmaps, articles, resources and journeys to help you choose your path and grow in your career.

© · FAQs · Terms · Privacy


The leading DevOps resource for Kubernetes, cloud-native computing, and the latest in at-scale development, deployment, and management.