NFS Version 4 (NFS V4) is the latest defined client-to-server protocol for NFS. A significant upgrade from NFS V3, it was defined under the IETF framework by many contributors. NFS V4 introduces major changes to the way NFS has been implemented and used before now, including stronger security, wide area network sharing, and broader platform adaptability. This IBM Redbooks publication is intended to provide a broad understanding of NFS V4 and specific AIX NFS V4 implementation details. It discusses considerations for deployment of NFS V4, with a focus on exploiting the stronger security features of the new protocol. In the initial implementation of NFS V4 in AIX 5.3, the most important functional differences are related to security. Chapter 3 and parts of the planning and implementation chapters in Part 2 cover this topic in detail.

AIX Version 6.1 provides many significant new security technologies and security enhancements. The purpose of this IBM Redbooks publication is to highlight and explain the security features at the conceptual level, as well as provide practical examples of how they may be implemented. Some features are extensions of features made available in prior AIX releases, and some are new features introduced with AIX V6. Major new security enhancements will be introduced with AIX V6 in 2007: - Trusted AIX (Multilevel Security) - Role Based Access Control (RBAC) - Encrypted File System - Trusted Execution - AIX Security Expert Enhancements This IBM Redbooks publication will provide a technical introduction to these new enhancements. The topics are both broad and very complex. This book will serve as an initial effort in describing all of the enhancements together in a single volume to the security/system hardening oriented audience.

The aim of this IBM Redbooks publication is to provide a technical reference for IT system administrators in organizations that are considering a migration from Sun Solaris to IBM AIX 5L-based systems. This book presents a system administrator view of the technical differences that exist and the methods that are necessary to complete a successful migration to AIX 5L-based systems. This book is designed primarily as a reference for experienced Sun Solaris 8 or 9 system administrators who will be working with AIX 5L. This book is not an AIX 5L administration how-to book for system administrators who are beginners, but rather a guide for experienced administrators who have to translate a given Solaris system administration task to AIX 5L.

This IBM Redbooks publication focuses on the differences introduced in AIX 5L Version 5.3 when compared to AIX 5L Version 5.2. It is intended to help system administrators, developers, and users understand these enhancements and evaluate potential benefits in their own environments. AIX 5L Version 5.3 introduces many new features, including NFS Version 4 and Advanced Accounting, and exploits the advanced capabilities of POWER5 equipped severs, such as Virtual SCSI, Virtual Ethernet SMT, Micro-Partitioning, and others. There are many other enhancements available with AIX 5L Version 5.3, and you can explore them in this book. For customers who are not familiar with the enhancements of AIX 5L through Version 5.2, a companion publication, AIX 5L Differences Guide Version 5.2 Edition, SG24-5765 is available.

This IBM Redbooks publication focuses on the technology, serviceability, and features that are used by the IBM eServer p5 and IBM System p5 servers, which allow you to make your server one of the most reliable and available parts of your IT infrastructure. This book explains how the server availability can be improved by: - Proper planning of the server environment and configuration - Understanding the role of the service processors and firmware components, and how they can be best configured and managed -Using high availability and redundancy features provided by the AIX 5L operating system and the Virtual IO server This book contains many detailed examples and step-by-step scenarios of usual server operation and maintenance tasks, such as the setup of redundant HMC and service processors, firmware upgrades, hot-addition of RIO drawers, or configuration of redundant Virtual IO servers. This book is intended for architects, specialists, and system administrators who are responsible for planning or developing an availability strategy for IBM System p servers.