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.4 15 15. 1 The Basics 393name 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...

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 ... 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. ... with a sense of humor. The followingemail was sent to users of a particular network after a series of outages.From: Head of the SA TeamTo: Users of this network Subject: Network theft problemThis...

The Practice of System and Network Administration Second Edition phần 1 docx

... 55 023.1.7 Automation 55 223.1.8 Basic Monitoring 55 223.1.9 Redundancy 55 323.1.10 Scaling 55 423.1.11 Security Issues 55 623.1.12 Communication 55 723.2 The Icing 55 823.2.1 Encryption 55 923.2.2 Email ... 391 15. 1 The Basics 391 15. 1.1 Learn the Customer’s Problem 392 15. 1.2 Fix the Cause, Not the Symptom 393 15. 1.3 Be Systematic 394 15. 1.4 Have the Right Tools 3 95 15. 2 The Icing 399 15. 2.1 Better ... Email Service 54 323.1 The Basics 54 323.1.1 Privacy Policy 54 423.1.2 Namespaces 54 423.1.3 Reliability 54 623.1.4 Simplicity 54 723.1 .5 Spam and Virus Blocking 54 923.1.6 Generality 55 023.1.7...

The Practice of System and Network Administration Second Edition phần 2 doc

... requiredfeatures, and you might be tempted to reject the bid. On the other hand,customers who understand the value of simplicity may be willing to foregothose features and gain the higher reliability. 5. 1 .5 ... 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...

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

... 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 ... 193MultiplelinksMultiplelinksGermanofficeFrenchofficeUnitedKingdomofficeBulgarianofficeAustinofficeNew JerseyofficeDenverofficeOffice inSingaporeOffice inJapanOffice inMalaysiaMainEuropeanofficeMainU.S.officeMainAsianofficeFigure ... 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...

The Practice of System and Network Administration Second Edition phần 4 docx

... 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 ... 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 ... effectively.11.1 The Basics 313connect 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...

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...

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 ... 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 ... deleted the data, the direct users of the data. Archival backups serve the needs of the legal and financial departments that require them, people who638 Chapter 26 Backup and Restoreto the same...

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...

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 ... 664“An Analysis of UNIX System Configuration” (Evard), 41–42Anonymizer service, 3 35 Anonymizing redirection service, 258 ANS.1 format, 52 9Antispam software, 55 0Anti-virus software, 55 0AOLServer, ... her boss and stands by during the presentation in case she needs help. The value to the company of the Customer’s Advocate is to help the customers get what they need despite red tape and communication...

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