Sinopsis
In the near past, UNIX primarily inhabited the dusty halls of research institutions and universities. In these environments, UNIX was used as a programmer’s tool that could be built upon to meet the needs of the research community. It didn’t have to be easy, it just had to be low-cost and provide standard common interfaces to support research collaboration and tool building. It is the open, standards-based face of UNIX that has brought it to the forefront of the movement toward open systems.
The proliferation of low-cost RISC processors has brought UNIX onto the desktop. The open systems, open source, and right sizing movements have brought UNIX into the commercial glass house. The time has come. UNIX has gotten a haircut, put on a suit, and gone head to head with the legacy operating systems from desktop to big iron. Vendors and standards groups are scrambling to define and implement UNIX system management and administration tools to satisfy the needs of this diverse user base that are continually changing. Are they succeeding? Well, even now a common Enterprise Management “Console” does not work for everything and everybody. The first offerings in the realm of UNIX system management were just a set of commands encased in various user interfaces. Many of these tools take a good deal of heat from the traditional UNIX Systems Administrator crowd because of the new approaches and protocols being employed to manage standalone and distributed UNIX environments. Whether this is good or bad remains to be seen.
The Open Software Foundation (OSF) struggled with its Distributed Management Environment (DME) technology in late 1993, yet it never saw the light of day. Tivoli, Hewlett-Packard, and others have taken up the challenge and are now offering a robust multivendor OS and network management tools. Are they interoperable? The sales glossies and CD-ROM demos certainly indicate that not only are they interoperable, they also meet all the latest standards specifications. Remember standards? Everybody’s got one. Rather than spending a great deal of time validating the standards issue, the best use of your time is to give each product a test drive and vote with hard-earned cash. Since you are reading this book, I can safely assume there is still some work to be done regarding development of the perfect systems management tool.
Like any multiuser operating system, UNIX requires special care to ensure that resources are distributed equitably among the user base and that these resources are secured from intrusion or failure. Our job as Systems Administrators is to guarantee that these requirements are being met. How do we do it? Read on!
Content
- System Administration Tasks and Tools
- Systems and System Architecture
- System Installation and Management
- System Configuration and Customization
- Network Configuration and Customization
- Networked Filesystems
- Linux Affinity
- Distributed Services
- Managing Users and Resources
- Security
- System Recovery and Tuning
- High Availability
- Storage Area Networks and Network Attached Storage
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