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Server Requirements

Multiple, Load-Balanced Servers

Hitachi ID Group Manager supports multiple, load-balanced servers.

Each server can host multiple Group Manager instances, each with its own users, target systems, features and policies.

Server Platform

Group Manager must be installed on a Windows 2012 or Windows 2012/R2 server.

Installing on a Windows server allows Group Manager to leverage client software for most types of target systems, which is available only on the "Wintel" platform. In turn, this makes it possible for Group Manager to manage passwords and accounts on target systems without installing a server-side agent.

Each Group Manager application server requires a web server. IIS is used as it comes with the Windows 2012 Server OS.

Group Manager is a security application and should be locked down accordingly. Please refer to the Hitachi ID Systems document about hardening Group Manager servers to learn how to do this. In short, most of the native Windows services can and should be removed, leaving a very small attack surface, with exactly one inbound TCP/IP port (443):

  1. No ASP, JSP or PHP are used, so such engines should be disabled.
  2. .NET is not required on the web portal and in most cases can be disabled on IIS.
  3. No ODBC or DCOM are required inbound, so these services should be filtered or disabled.
  4. File sharing (inbound, outbound) should be disabled.
  5. Remote registry services should be disabled.
  6. Inbound TCP/IP connections should be firewalled, allowing only port 443 and possibly remote desktop services (often required for some configuration tasks), plus a handful of port numbers between Group Manager servers, for replication.

Each Group Manager server requires a database instance. Microsoft SQL 2012 is the recommended choice, Microsoft SQL 2014 will be officially supported in 2016. Oracle database is supported on versions up to 9.0.x and is not supported on 10.0 or later releases.

Server Configuration

Production Group Manager application servers are normally configured as follows:

  • Hardware requirements or equivalent VM capacity:
    • An Intel Xeon or similar CPU. Multi-core CPUs are supported and leveraged.
    • At least 8GB RAM -- 16GB or more is typical for a server.
    • At least 500GB disk, preferably configured as RAID for reliability and preferably larger for retention of more historical and log data. More disk is always better, to increase log retention.
    • At least one Gigabit Ethernet NIC.

  • Operating system:
    • Windows 2012R2 Server Standard Edition, with current service packs.
    • The server should not normally be a domain controller and in most deployments is not a domain member.

  • Installed and tested software on the server:
    • TCP/IP networking, with a static IP address and DNS name.
    • IIS web server with an SSL certificate.
    • At least one web browser and PDF viewer.

  • A Microsoft SQL Server 2012 instance is required to host the Group Manager schema:
    • Normally one database instance per application server.
    • The SQL Server database software can be deployed on the same server as the Group Manager application, as this reduces hardware cost and allows application administrators full DBA access for troubleshooting and performance tuning purposes.
    • The SQL Server database software can be deployed on the same server
    • SQL Server 2012 Standard is recommended in almost all cases -- SQL Express is acceptable for small deployments and evaluations.

As mentioned before, Group Manager requires SQL Server, typically with one database instance per application server. In most environments, the Microsoft SQL Server software is installed on the same hardware or VM as the Group Manager software, on each Group Manager server node. This reduces hardware cost, eliminates network latency and reduces the security surface of the combined solution.

Be sure to install the following components that come with Microsoft SQL Server 2012:

  1. Database Engine Services
  2. Client Tools Connectivity
  3. Management Tools - Basic
  4. Management Tools - Complete

Database I/O performance on a virtualized filesystem (e.g., VMDK or equivalent) is slow. If the database server software runs on a VM, please use a fast, nearby NAS or SAN to store the actual data files.

Group Manager can leverage an existing database server cluster, but Hitachi ID Systems recommends a dedicated database server instance:

  1. The data managed by Group Manager is extremely sensitive, so it is desirable to minimize the number of DBAs who can access it (despite use of encryption).
  2. MSSQL has limited features to isolate workloads between database instances on the same server. This means that a burst of activity from Group Manager (as happens during auto-discovery) would cause slow responses in other applications. Conversely, other applications experiencing high DB load would slow down Group Manager.
  3. Group Manager already includes real-time, fault-tolerant, WAN-friendly, encrypted database replication between application nodes, each with its own back-end database. Use of an expensive DB server cluster is neither required nor beneficial.

Read More:

  • Architecture:
    Hitachi ID Suite network architecture.
  • Included Connectors:
    Systems on which Group Manager can audit and reduce privileges.
  • Other Integrations:
    Integrations between Hitachi ID Suite and other parts of an IT infrastructure.
  • Server Requirements:
    Sizing, configuration and number of servers on which to deploy Group Manager
  • Language Support:
    Languages Supported by the Hitachi ID Identity and Access Management Suite
  • Windows Shell Extension:
    Intercepting the Windows "Access Denied" error dialog and directing users to a request page.
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