---
type: entity
title: SSH-Gateway
tags: [server, remote-access, ssh]
related: [universitatsrechenzentrum-urz, ssh-tunneling-uni-greifswald, ums]
created: 2026-06-30
updated: 2026-06-30
sources: ["output/rz_uni_greifswald_de_dienste_technische_infrastruktur_vpn_ssh_gateway.md"]
---

# SSH-Gateway

The **SSH-Gateway** (`ssh-gateway.uni-greifswald.de`) is a technical infrastructure service provided by the [[universitatsrechenzentrum-urz]]. It serves as a jump host (intermediary) that allows external clients to establish secure SSH connections to internal university systems without requiring a full VPN connection.

## Technical Specifications
- **FQDN**: `ssh-gateway.uni-greifswald.de`
- **Public Key Fingerprint**: `SHA256:1b0s7qTEHnJVPeSYCokxWEhQmZscUPYGlxMRRum1wHA`
- **Authentication**: Access is fundamentally restricted to the **Public-Key method**. Users must upload and manage their public keys through the [[ums]].

## Security Features
The gateway supports **VerifyHostKeyDNS**, allowing SSH clients that support DNSSec to automatically verify the server's host key fingerprint via DNS, reducing the risk of man-in-the-middle attacks.
