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zOS Communications Server Part 2 - Implementing TCP/IP under z/OS

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4 Days
Classroom Training, Online Training
IBM Business Partner

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Course Description


This new, four-day course is the second part of the definitive z/OS Communications Server training program. This course explains in detail how TCP/IP works in a z/OS environment. Installation, profile definition and implementation are all taught in depth. All versions of TCP/IP for z/OS are covered, along with all the servers. Additionally, all the essential and important configuration options are explained and examples are provided. Extensive hands-on practical sessions, in which each student has their own system to work on, form the central part of the course. These sessions make up approximately 30% of the whole course. Each segment of the course also contains extensive review questions/exercises - thus ensuring that all students fully grasp each topic before moving on to the next.


At the end of this course, students will be able to:
  • Describe the structure, operation and the addressing mechanisms used in a TCP/IP network
  • List the major configuration steps involved in customizing TCP/IP for z/OS and explain the Security Server customization required in z/OS
  • Explain the purpose and use of Virtual IP addressing (VIPA) and explain how to code for both a static and dynamic VIPA configuration
  • Explain the purpose and use of Distributed VIPAs and the need for Sysplex Distributor
  • Describe and define devices to TCP/IP for z/OS and explain how to define the TCP/IP for z/OS host IP address(es)
  • Describe and define the purpose and customization of the DATA dataset and RESOLVER • Define the host name, domain name and DNS information
  • Describe and define the HOSTS file and the SERVICES dataset
  • Explain the configuration of the TN3270 server and the SNA gateway and explain the VTAM configuration required to support the gateway
  • Implement a VTAM USS table for TN3270 users
  • Describe and define the Telenet servers, INETD and SSHD
  • Describe and define the operation and customization of the FTP server and its major security features
  • Explain the differences between SFTP and FTPS
  • Explain and define the operation and customization of the CSSMTP server and OMPROUTE server
  • Describe the purpose and use of the major TCPIP, TSO and USS commands
  • Explain how to start, stop and interpret a TCP/IP packet trace and a component trace using IPCS and WireShark
  • Explain and define the purpose of the Enterprise Extender
  • Explain how the security product Policy Agent is used and why it is needed
  • Explain and define the structures required in a Parallel Sysplex for TCP/IP High Availability.


This course is designed for network technicians, systems programmers and technical managers who need a thorough understanding of how TCP/IP for z/OS is installed and configured.


    Attendance on the courses TCP/IP Fundamentals and z/OS Communications Server Part 1 - Implementing APPN and VTAM or equivalent experience. A familiarity with UNIX on z/OS is also required and some z/OS systems programming experience is needed.


  • TCP/IP Review
  • An Overview of TCP/IP on z/OS
  • TCP/IP for z/OS Installation
  • TCP/IP for z/OS - Command Overview
  • Basic Profile Definitions
  • VIPAs and Sysplex
  • Other Datasets Needed
  • Server Customization
  • TCP/IP Security
  • Problem Determination Considerations
  • Sample Definitions
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