OT Jump Server

Industrial/ICS 🏭 Difficulty: premium

What is OT Jump Server?

An OT jump server (bastion host) is a tightly controlled gateway that brokers all remote administration into the industrial network, enforcing MFA, least privilege, auditing, and session recording while blocking direct IT→OT connections.

Examples

  • A vendor first connects to the IDMZ jump server with MFA; an approved, time-limited session then reaches a maintenance workstation in Level 3.
  • Plant engineers use the jump host to RDP into an HMI terminal server; every keystroke and file transfer is recorded and reviewed.

Discover 🔎

An OT jump server centralizes and controls all remote access to operational technology. Instead of dozens of ad-hoc paths into PLCs, HMIs, and servers, everyone enters through a single, hardened gateway. This improves safety and security by enforcing strong identity checks, limiting what users can reach, and creating a complete audit trail of actions taken near the process.

Summary 📝

An OT jump server is the front door to industrial networks. By forcing all remote work through one hardened, monitored gateway, plants gain strong identity controls, clean audit trails, safer file handling, and reduced attack surface—without giving up the remote support they need to operate efficiently.

Open the interactive lesson Browse more topics

Tip: The interactive version includes progress tracking, decks, and premium deep dives.