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Before installing Atrium Single Sign-On, which is a prerequisite product for the Presentation Server, ensure that its target system meets the following requirements:


If you have configured the Atrium Single Sign-On to work with SAML V2.0 (authentication through federated single sign-on, the Atrium Single Sign-On integration will not work with TrueSight Presentation Server.

Related topics

Planning the Presentation Server deployment

System requirements for Presentation Server

Load balancer requirements and guidelines for Atrium Single Sign-On high availability

Using LDAP (Active Directory) for authentication

Supported external authentication

LDAPv3, Active Directory

BMC recommends Active Directory for external authentication and does not support any of the other external authentication options supported by Atrium Single Sign-On product.

Sizing information

ParameterSmall environmentMedium environmentLarge environment
Storage configuration100 GB100 GB100 GB

Supported browsers

See System requirements and compatibility.

Supported web or application servers

The Tomcat 6.x and later web/application server and servlet engine are supported on all operating systems and platforms supported by BMC as defined in the Supported hardware platforms and operating systems section.


The ports that you selected when you installed the BMC Atrium Single Sign-On server must be accessible from the clients that are authenticated through the server. Configure the firewalls to allow access to the HTTPS port used for authentication, as well as the LDAP and Apache MQ ports in the nodes of a cluster.

Java support

BMC Atrium Single Sign-On requires at least Java 6.0 or later.Supportedvendor is:

Operating systemVendorMinimum recommended versions
Windows, Solaris, Linux (Red Hat)Oracle

Java SE 6 - 1.6.0_28 (32-bit or 64-bit)

Java SE 7 - 1.7.0_17 (32-bit or 64-bit)

Java SE 8 - 1.8.0_66 (32-bit or 64-bit)


Oracle refers to Java 1.6 as “6.0”. For more details, see Java SE Naming and Versions.

Entropy level requirements

If you are installing BMC Atrium Single Sign-On on Red Hat Enterprise Linux computers, the entropy level on the server must be at least 3000. Otherwise, you might experience installation issues. If an installation or silent installation aborts suddenly, finishes veryquickly,or takes a long time to complete, the computer might be experiencing low entropy issues. To avoid these issues, perform the following tasks:

  • Verify the level of entropy in the entropy_avail file at the following location: cat /proc/sys/kernel/random/entropy_avail
  • If the level of entropy is less than 3000, run the following commands as root user or restart your computer. Running the command is the preferred option as it helps in maintaining the entropy level after installation. If your server has a low entropy level, you should configure your server to run the following commands while starting up your server.

    yum install rng-tools
    echo 'EXTRAOPTIONS="-i -o /dev/random -r /dev/urandom -t 10 -W 2048"' >>/etc/sysconfig/rngd
    chkconfig rngd on
    service rngd restart

You must also ensure that the "rngd" process is running.


  1. What are the Supportet OS for the WebSSO? On this Page it is not clear?

  2. See System requirements and compatibility.
    This does not point to the Systems requirements of the WebSSO. That is confusing.
    1. Thanks your comment. We'll update this page with the missing information, but in the meantime, you can find the system requirements for Atrium Single Sign-On at the following location: System Requirements.