Enhancing Remote Access Security

Jump Box Security

Author(s):

While Linux can be made very secure, you can increase the security of your entire network with jump boxes.

Special Thanks: This article was made possible by support from Linux Professional Institute

A jump box is a system set up with multi-factor authentication (MFA) usually placed in a network DMZ with very restricted access to the corporate network and no returning Internet access for any protocol. In other words, the jump box has only one path in via SSH ,and no other protocols are allowed outbound to the Internet or into the corporate network. Figure 1 shows a simplified diagram of a jump box and where and how it is positioned within your network.

Figure1: The jump box showing access into the corporate network.

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