By Parnian Taidi-Oracle on Mar 13, 2016
In recent blogs we have talked about various aspects of end-to-end application security with Oracle Solaris 11, SPARC M7 and the ISV Ecosystem. We also talked about a white paper that provides best practices for using the Oracle Solaris compliance tool for SAP installations. Another way to increase the security of an SAP installation is to use Oracle Solaris Immutable Zones.
A Solaris zone is a virtualized operating system environment created within a single instance of the Solaris OS. Within a zone, the operating system is represented to the applications as virtual operating system environments that are isolated and secure. Immutable Zones are Solaris zones with read-only roots. Both global and non-global zones can be Immutable Zones.
Using Immutable Zones is one technique that can protect applications and the system from malicious attacks by applying read-only protection to the host global zone, kernel zones and non-global zones. Oracle Solaris Zones technology is the recommended approach for deploying application workloads in an isolated environment—no process in one zone can monitor or affect processes running in another zone. Immutable Zones extend this level of isolation and protection by enabling a read-only file system, preventing any modification to the system or system configuration.
As an SAP system requires write access to some directories, it is not possible to install SAP inside an Immutable Zone without further configuration. A new paper provides instructions and best practices on how to create and manage an SAP installation on an Oracle Solaris Immutable Zone. Read the white paper for details or see SAP Note 2260420 (requires SAP login).