The Practice of System and Network Administration Second Edition phần 3 docx
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 servicecenter. The security-access systemis also on the ... that vary across the network. Both the physical- and logical -network maps should reach to the perimeter of the organization’s network and identify its outer boundaries.Labeling is the single most...
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The Practice of System and Network Administration Second Edition phần 1 docx
... 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 31 711 .3 Organization Profiles 31 711 .3. 1 Small Company 31 811 .3. 2 Medium-Size Company 31 811 .3. 3 Large Company 31 911 .3. 4 E-Commerce Site 31 911 .3. 5 University 32 011.4 Conclusion 32 112 ... Employees 838 33 .1.4 Decisions 8 43 33. 2 The Icing 849 33 .2.1 Make Your Team Even Stronger 849 33 .2.2 Sell Your Department to Senior Management 849 33 .2 .3 Work on Your Own Career Growth 850 33 .2.4 Do...
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The Practice of System and Network Administration Second Edition phần 4 docx
... effectively.11.1 The Basics 31 3connect to the company, because of the customer’s policies and facilities.If the offices cannot use one of the officially sanctioned methods, theymay set up something for themselves ... availability of and access to the manufacturingcontrol systems was of the utmost importance.A large networking hardware and software company, the crown jewels were iden-tified as the financial and ... let them make the decision without having to understand the technology, and they were able to break the tie where the SAs disagreed.By the time the hardware was ready, the grid was complete. The...
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The Practice of System and Network Administration Second Edition phần 2 doc
... useful to talk with other SAs to find out which vendors theyuse 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 designedwith three components: the box that handles the remote connections, the server that makes sure that people are who they say they ... includeDNS, email, authentication services, network connectivity, and printing.1These services are the most critical, and they are the most visible if they fail.Other typical services are the various...
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The Practice of System and Network Administration Second Edition phần 5 pps
... 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 madea mistake, Tom was blamed because some of the group’s systems depended on the customer’s systems. The customer and Tom had the following ... 24/7availability.41515.1 The Basics 39 3name to demonstrate a routing problem but overlook the error message and the fact that the DNS lookup of the host’s name failed.Find the Real ProblemOne of Tom’s customers...
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The Practice of System and Network Administration Second Edition phần 6 doc
... when the cost model showed the systems tocost about the same per gigabyte of usable storage, the dedicated file servers hadan 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 racks they satin! Each of these items ... quickly and efficiently, with all the relevant staff on-site and not havingto be paged out of their beds. Both of these factors are important in the overallsatisfaction of the company with the...
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The Practice of System and Network Administration Second Edition phần 7 potx
... 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 Chapter 26 Backup and Restoreto the same ... Understanding the basic relationship of storage devices to the operating system and to the file system gives you aricher understanding of the way that large storage solutions are built upout of...
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The Practice of System and Network Administration Second Edition phần 8 ppt
... 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 oncustomer support and the relationships between the SAs and between the customers and the SAs. In the ... after the old one timed out, because the operating system was not releasing the connection.Fortunately, one of the SAs on another part of the project was familiar with thisbehavior and knew of the...
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The Practice of System and Network Administration Second Edition phần 9 pps
... 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 stickwith ... and career growth. She needs to give themtasks that they are capable of handling, tasks that will stretch their skills and help them grow, and enough variety to keep the work interesting. 33 .1.4.2 ... servers,printers, other people’s PCs, and the like.This has the same effect as if someone walked up to another person’s PCwhen no one was around and pulled the network connection out of the back of it....
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The Practice of System and Network Administration Second Edition phần 10 pdf
... existing systems and improving them, scaling large systems into hu-mongous systems, and overhauling legacy systems and replacing them withnewer 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 the lessons and values that ... the summer.That autumn, after they left, the SAs had to decommission their computers and clean the large room they had been sharing. The SAs found a scrap of paper that had been tapednear the...
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