Using RHEL System Roles to automate and manage Network Bound Disk Encryption

Red Hat Enterprise Linux (RHEL) has offered the ability to encrypt disks for many years, but the network bound disk encryption (NBDE) functionality, which can automatically unlock volumes by utilizing one or more network servers (referred to as Tang servers), can make implementing disk encryption easier. This post will cover how to get started with the NBDE Client and NBDE Server roles by walking through a simple implementation with a single Tang server. 
Quelle: CloudForms