Book description
Abstract
For more than 50 years, IBM® mainframes have supported an extraordinary portion of the world's computing work, providing centralized corporate databases, and mission-critical enterprise-wide applications. IBM z® Systems, the latest generation of the IBM distinguished family of mainframe systems, has come a long way from its IBM System/360 heritage. Likewise, its IBM z/OS® operating system is far superior to its predecessors in providing, among many other capabilities, world-class and state-of-the-art support for the TCP/IP Internet protocol suite.
TCP/IP is a large and evolving collection of communication protocols managed by the Internet Engineering Task Force (IETF), an open, volunteer organization. Because of its openness, the TCP/IP protocol suite has become the foundation for the set of technologies that form the basis of the Internet. The convergence of IBM mainframe capabilities with Internet technology, connectivity, and standards (particularly TCP/IP) is dramatically changing the face of information technology and driving requirements for ever more secure, scalable, and highly available mainframe TCP/IP implementations.
The IBM z/OS Communications Server TCP/IP Implementation series provides understandable, step-by-step guidance about how to enable the most commonly used and important functions of z/OS Communications Server TCP/IP.
This IBM Redbooks® publication is for people who install and support z/OS Communications Server. It explains how to set up security for your z/OS networking environment. With the advent of TCP/IP and the Internet, network security requirements have become more stringent and complex. Because many transactions are from unknown users and untrusted networks such as the Internet, careful attention must be given to host and user authentication, data privacy, data origin authentication, and data integrity. Also, because security technologies are complex and can be confusing, we include helpful tutorial information in the appendixes of this book.
For more information about z/OS Communications Server base
functions, standard applications, and high availability, see the
other following volumes in the series:
, SG24-8360
IBM z/OS V2R2 Communications Server TCP/IP Implementation Volume 1: Base Functions, Connectivity, and Routing
, SG24-8361
IBM z/OS V2R2 Communications Server TCP/IP Implementation Volume 2: Standard Applications
, SG24-8362
IBM z/OS V2R2 Communications Server TCP/IP Implementation Volume 3: High Availability, Scalability, and Performance
This book does not duplicate the information in these publications. Instead, it complements those publications with practical implementation scenarios that might be useful in your environment. For more information about at what level a specific function was introduced, see z/OS Communications Server: New Function Summary, GC31-8771.
Table of contents
- Front cover
- Notices
- Preface
- Chapter 1. RACF demystified
-
Chapter 2. Protecting network resources
- 2.1 SERVAUTH resource class
- 2.2 Protecting your TCP/IP stack
- 2.3 Protecting your network access
- 2.4 Protecting your network ports
- 2.5 Protecting the use of socket options
- 2.6 Protecting sensitive network commands
- 2.7 Protecting FTP
- 2.8 Protecting network management resources
-
2.9 Protecting miscellaneous resources
- 2.9.1 Digital Certificate Access Server access control
- 2.9.2 MODDVIPA utility program control
- 2.9.3 DVIPA activation and movement Control
- 2.9.4 Fast Response Cache Accelerator access control
- 2.9.5 Real-time SMF information service access control
- 2.9.6 TCP/IP packet trace service access control
- 2.9.7 TCP/IP stack initialization access control
- 2.9.8 RPCBIND application registration control
- Chapter 3. Certificate management in z/OS
-
Chapter 4. Policy agent
- 4.1 Policy agent description
-
4.2 Implementing PAGENT on z/OS
- 4.2.1 Starting PAGENT as started task
- 4.2.2 Starting PAGENT from UNIX
- 4.2.3 Stopping PAGENT
- 4.2.4 Disabling PAGENT policies for IPSec
- 4.2.5 Basic configuration
- 4.2.6 Coding policy definitions in a configuration file
- 4.2.7 Refreshing policies
- 4.2.8 Policy infrastructure management
- 4.2.9 Verification
- 4.2.10 Centralized policy server
- 4.2.11 More information
- 4.3 Setting up the Traffic Regulation Management daemon
- 4.4 Configuration Assistant for z/OS Communications Server
- 4.5 Connection flooding
- 4.6 Backup and migration considerations
- 4.7 More information
- Chapter 5. Centralized policy server
- Chapter 6. Quality of service
- Chapter 7. IP filtering
-
Chapter 8. IP Security
- 8.1 IPSec overview
- 8.2 Basic concepts
-
8.3 Current IPsec support
- 8.3.1 IKE version 2 (IKEv2) support
- 8.3.2 IPSec support for certificate trust chains
- 8.3.3 IPSec support for certificate revocation lists
- 8.3.4 IPSec support for cryptographic currency
- 8.3.5 IPSec support for FIPS 140 cryptographic mode
- 8.3.6 Improved FIPS 140 diagnostics
- 8.3.7 AES cryptographic support for integrated IPSec in a VPN
- 8.3.8 Trusted TCP connections
- 8.3.9 zIIP Assisted IPSec function
- 8.4 Working with the z/OS Communications Server Network Management Interface
-
8.5 How IPSec is implemented
- 8.5.1 Installing the PAGENT
- 8.5.2 Setting up the Traffic Regulation Management daemon
- 8.5.3 Updating the TCP/IP stack to activate IPSec
- 8.5.4 Restricting the use of the ipsec command
- 8.5.5 Installing the IBM Configuration Assistant for z/OS Communications Server
- 8.5.6 IPSec scenarios
- 8.5.7 Defining the IPSec policies to PAGENT
- 8.5.8 Setting up the IKED
- 8.5.9 RACF certificate definitions for IKED
- 8.5.10 Setting up the system logging daemon (SYSLOGD) to log IKED messages
- 8.5.11 Starting the IKED and verifying initialization
- 8.5.12 Commands used to administer IP security
- 8.6 Configuring IPSec between two z/OS systems: Pre-shared key mode using IKEv2
- 8.7 Configuring IPSec between two z/OS systems: RSA signature mode using IKEv1
- 8.8 More information
-
Chapter 9. Network Security Services for IPSec clients
- 9.1 Basic concepts
-
9.2 Configuring NSS for the IPSec discipline
- 9.2.1 Preliminary tasks overview
- 9.2.2 NSS client and NSS server
- 9.2.3 Preparing for configuration
- 9.2.4 Configuring the NSS environment
- 9.2.5 Configuring prerequisites for NSS for an IKED Client
- 9.2.6 Configuring authorizations for NSS
- 9.2.7 Configuring the NSS server for an IKED Client
- 9.2.8 Enabling an IKED NSS client to use NSS
- 9.2.9 Creating NSS files for IKED Client using z/OSMF Configuration Assistant
- 9.3 Verifying the NSS environment for the IKED Client
- 9.4 Diagnosing the NSSD environment
- 9.5 Worksheet questions for NSSD implementation (IKED client)
- 9.6 More information
-
Chapter 10. Network Security Services for WebSphere DataPower appliances
- 10.1 Basic concepts
-
10.2 Configuring NSS
- 10.2.1 NSS configuration for an NSS XMLAppliance Client overview
- 10.2.2 Preparing for configuration
- 10.2.3 Configuring the NSS environment at z/OS
- 10.2.4 Creating NSS Server files for an NSS XMLAppliance Client with IBM Configuration Assistant
- 10.2.5 Configuring the NSS environment at the WebSphere DataPower SOA Appliance to support the SAF access service
- 10.2.6 Configuring the NSS environment at the Web Services Requester
- 10.3 Verifying the NSS configuration with the NSS Client (XML Appliance Discipline)
- 10.4 More information
- 10.5 NSS configuration worksheet for an NSS XMLAppliance client
- Chapter 11. Network Address Translation traversal support
- Chapter 12. Application Transparent Transport Layer Security
- Chapter 13. Intrusion detection services
- Chapter 14. IP defensive filtering
- Chapter 15. Policy-based routing
-
Chapter 16. Telnet security
- 16.1 Conceptual overview of TN3270 security
- 16.2 TN3270 native TLS connection security
- 16.3 Basic native TLS configuration example
- 16.4 TN3270 with AT-TLS security support
- 16.5 Basic AT-TLS configuration example
- 16.6 Problem determination for Telnet server security
- 16.7 More information sources for TN3270 AT-TLS support
-
Chapter 17. Secure File Transfer Protocol
- 17.1 Conceptual overview of FTP security
- 17.2 FTP client with SOCKS proxy protocol
-
17.3 FTP with native TLS support
- 17.3.1 FTP native TLS security overview
- 17.3.2 Configuring FTP native TLS security
- 17.3.3 Activate and verify FTP server without security
- 17.3.4 Activate and verify FTP server with TLS security: Internet draft protocols
- 17.3.5 Activate and verify FTP server with TLS security: RFC4217 protocols
- 17.3.6 Implicit secure TLS login
- 17.4 FTP with AT-TLS security support
- 17.5 Migrating from native FTP TLS to FTP AT-TLS
- 17.6 FTP TLS and AT-TLS problem determination
- 17.7 More information
- Appendix A. Basic cryptography
- Appendix B. Telnet security advanced settings
- Appendix C. Configuring IPSec between z/OS and Windows
- Appendix D. zIIP Assisted IPSec
- Appendix E. z/OS Communications Server IPSec RFC currency
- Appendix F. Implementation environment
- Related publications
- Back cover
Product information
- Title: IBM z/OS V2R2 Communications Server TCP/IP Implementation: Volume 4 Security and Policy-Based Networking
- Author(s):
- Release date: March 2017
- Publisher(s): IBM Redbooks
- ISBN: 9780738442242
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