Review of z/OS operating system security: The threats, What is security? Implementing the security mechanisms, The MVS security approach, z/OS Security Server (RACF), OS/390 and z/OS UNIX System Services security. UNIX-level security, z/OS UNIX System Services-level security, Why z/OS UNIX System Services is a more secure UNIX, Access control list (ACL) support for z/OS 1.3, Overview of Parallel Sysplex technologies, Parallel Sysplex definition, SYS1.PARMLIB members used for sysplex setup, Running ICSF in a Parallel Sysplex environment, Exploitation and protection of the coupling mechanisms, TCP/IP security in a sysplex configuration, How dynamic routing works with the Sysplex Distributor, Securing the connection to the Internet. Chapter 7. Intrusion detection services. Chapter 8. IDS configuration using zIDS Manager, TCP-exclusive DLCs TCP-exclusive DLCs are those only available for the Communications Server for OS/390 IP stack and cannot be shared between multiple instances of Communications Server for OS/390 IP. The TCP-exclusive DLCs supported by Communications Server for OS/390Communications Server for OS/390 IP include the following channel protocols. Channel Data Link Control (CDLC) - This protocol supports a native IP connection between Communications Server for OS/390 IP and an IP router coded within a 374x running Network Control Program (NCP) or within a 9×0 channel-attached router. The firewall technologies available beginning with OS/390 V2R5 are functions embedded in the TCP/IP stack or running in additional address spaces that provide protection mechanisms which were formerly delivered by dedicated firewall boxes. The protection mechanisms of interest here are the IP Filtering and the IPSec Virtual Private Network because of their usefulness and specific features that need to be understood when they run in a sysplex.
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