Red Hat Security: Identity Management and Authentication

Red Hat offers three identity management solutions: Identity Management (IdM), Red Hat Directory Server, and Red Hat Certificate Server. IdM is the Red Hat recommended solution for providing domain-based identity, access, and security policies in enterprise and cloud infrastructures running Red Hat Enterprise Linux. IdM is included in your RHEL subscription.

Red Hat Directory Server provides an extensible LDAP directory suitable for use as an application identity store or for other custom directory service use cases.

Red Hat Certificate Server provides advanced certificate management capabilities, including the ability to create authorization approval workflows and to provide certificate services in multiple environments or for multiple organizations.

IdM provides various configuration options, including an integrated or external certificate authority and an integrated or external DNS server.

IdM no longer provides an integrated time server (NTP) component, and must be configured to use an external time server.

IdM uses well-known and mature components of the Linux operating system, and provides native trust integration with a Microsoft Active Directory server.

Red Hat recommends installing multiple, replicated IdM servers to optimize performance and provide redundancy. IdM can be installed and replicated across distributed locations, up to a recommended maximum of 60 IdM servers.