The Practice of System and Network Administration Second Edition phần 3 docx

... simplicity on the physical layer. You can build a very simple and therefore stable—flat physical network and then construct overlay networks on top of the solid base to give the ap- pearance of the more ... the machines and lighting in the data center, the HVAC system, the UPS charging, the phone switches, the SA work area, and the customer service center....

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... Conclusion 34 0 13 Helpdesks 34 3 13. 1 The Basics 34 3 13. 1.1 Have a Helpdesk 34 4 13. 1.2 Offer a Friendly Face 34 6 13. 1 .3 Reflect Corporate Culture 34 6 13. 1.4 Have Enough Staff 34 7 13. 1.5 Define Scope of ... Metrics 31 7 11 .3 Organization Profiles 31 7 11 .3. 1 Small Company 31 8 11 .3. 2 Medium-Size Company 31 8 11 .3. 3 Large Company 31 9 11 .3. 4 E-Com...

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... effectively. 11.1 The Basics 31 3 connect to the company, because of the customer’s policies and facilities. If the offices cannot use one of the officially sanctioned methods, they may set up something for themselves ... availability of and access to the manufacturing control systems was of the utmost importance. A large networking hardware and software company,...

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... useful to talk with other SAs to find out which vendors they use and which ones they avoid. The System Administrators’ Guild (SAGE) (www.sage.org) and the League of Professional System Administrators (LOPSA) ... authentication and authorization system. The system is designed with three components: the box that handles the remote connections, the server that makes su...

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... whether the change should go ahead regardless of ‘ the weather’’ or wait until there is ‘‘good weather’’: the operating status of the service. In other words, some changes are approved on the ... schedule, rather than the other way around. When his customer made a mistake, Tom was blamed because some of the group’s systems depended on the customer’s systems. The custome...

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... when the cost model showed the systems to cost about the same per gigabyte of usable storage, the dedicated file servers had an advantage over the old systems: consistency and support. The old systems ... mishmash of various manufacturers for the host; for the RAID controllers; and for the disk drives, cables, network interfaces, and, in some cases, even the rac...

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... pretty labels for the tape covers. However, the system failed to reduce the thinking aspect of the job. The software did a grand job of issuing the right backup commands at the right time, used ... deleted the data, the direct users of the data. Archival backups serve the needs of the legal and financial departments that require them, people who 638 Chapte...

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... the processing, leaving the CPU less loaded and better able to do the remaining work of moving the data off the disk, through the card, and onto the network. ❖ LAMP and Other Industry Terms Certain ... centralized and decentral- ized models for the system administration organization has an impact on customer support and the relationships between the SAs...

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... isolated, unimportant, and not part of the team. The longer people stay with the group and the less turnover there is, the more they will feel part of the team and the more likely they are to stick with ... and career growth. She needs to give them tasks that they are capable of handling, tasks that will stretch their skills and help them grow, and enough varie...

Ngày tải lên: 14/08/2014, 14:21

... existing systems and improving them, scaling large systems into hu- mongous systems, and overhauling legacy systems and replacing them with newer systems. Infrastructure Builders are proud of their ... Management for System Administrators. O’Reilly. Limoncelli, T. A., and C. Hogan. 2001. The Practice of System and Network Administration. Addison-Wesley. 910 Epilogue...

Ngày tải lên: 14/08/2014, 14:21