Principles of Network and System Administration 2nd phần 7 doc
Principles of Network and System Administration 2nd phần 7 doc
... 16.858/ 17. 462/ 17. 945/0. 475 mshost$ ping6 -s 9064 2001 :70 0 :70 0:3:290:27ff:fea2: 477 bPING 2001 :70 0 :70 0:3:290:27ff:fea2: 477 bfrom 2001 :70 0 :70 0:4:290:27ff:fe93: 672 3 : 9064 data bytes9 072 bytes from 2001 :70 0 :70 0:3:290:27ff:fea2: 477 b: ... 2001 :70 0 :70 0:3:290:27ff:fea2: 477 b: icmpseq=1 ttl=63time=25.0 ms9 072 bytes from 2001 :70 0 :70 0:3:290:27ff:fea2: 477 b: icmpseq=2 ttl=63time=22.4 ms9 072 bytes from 2001 :70 0 :70 0:3:290:27ff:fea2: 477 b: icmpseq=3 ... ms9 072 bytes from 2001 :70 0 :70 0:3:290:27ff:fea2: 477 b: icmpseq=4 ttl=63time=21.3 ms9 072 bytes from 2001 :70 0 :70 0:3:290:27ff:fea2: 477 b: icmpseq=5 ttl=63time=21.3 ms 2001 :70 0 :70 0:3:290:27ff:fea2: 477 b...
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Principles of Network and System Administration 2nd phần 2 doc
... 2001 :70 0 :70 0:3:290:27ff:fea2: 477 bPING 2001 :70 0 :70 0:3:290:27ff:fea2: 477 b: 56 data bytes64 bytes from 2001 :70 0 :70 0:3:290:27ff:fea2: 477 b: seq=0. t=1. ms64 bytes from 2001 :70 0 :70 0:3:290:27ff:fea2: 477 b: ... the system at hand.The aim of this chapter is to learn how to navigate network systems usingstandard tools, and place each piece of the puzzle into the context of the whole.3.1 Communities and ... There aretwo types of Windows system with separate software licenses: workstations and servers.Windowscanworkasastand-alonesystemorasaworkstation,integrated into a system of network services....
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Principles of Network and System Administration 2nd phần 3 pptx
... which replace many of the older Unix equivalents,like ls and cp. GNU software has its own system of installation and set of standards. GNU will also eventually become an operating system in its ownright. ... tree/software to similar ends in ref. [ 273 ]. In the Soft environment [109], softwareinstallation and user environment configuration are dealt with in a combinedabstraction.4 .7. 3 GNU software ... be regarded as one of the unsolved problems of system administration. Part of the problem is that the requirements of eachorganization are rather different. Many Unix-like systems provide shell...
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Principles of Network and System Administration 2nd phần 4 potx
... competing system toSNMP called COPS-PR [101].6.3. NETWORK ADMINISTRATION MODELS 2 07 6.3 Network administration modelsThe management of clusters of systems leads to the concept of logistic networks.Here ... [1 87] . This workChapter 6Models of network and system administration Understanding human–computer systems requires an ability to see relationshipsbetween seemingly distinct parts of a system. ... build softwaresystems which apply certain principles to the problem of management. Network management has, to some extent, been likened to the process of software develop-ment in the System Administration...
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Principles of Network and System Administration 2nd phần 5 pot
... attempts to keep track of changes in individual systems using a method of revision control. A typicalUnix system might consist of thousands of files comprising software and data.All of the files (except ... strategies for handling traffic flow aroundnetworks. 270 CHAPTER 7. CONFIGURATION AND MAINTENANCElimited access to the data without having administrative access to other parts of the system. mysqladmin ... users. 7. 10 SNMP toolsIn spite of its limitations (see section 6.4.1), SNMP remains the protocol of choicefor the management of most network hardware, and many tools have been writtento query and...
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Principles of Network and System Administration 2nd phần 6 pot
... "3.0.0.0.0.0 .7. 0.0.0 .7. 0.1.0.0.2.ip6.int"type master;file "master/2001 .70 0 .70 0.3";;zone "3.0.0.0.0.0 .7. 0.0.0 .7. 0.1.0.0.2.ip6.arpa"type master;file "master/2001 .70 0 .70 0.3";;Note ... for the upgrade and contingency plan for loss of some of the hosts.EXERCISES 3 27 8. What is meant by the environment of a system? 9. How does one find the boundary between system and environment?10. ... recordsDNS and IPv6 make a study in confusion. The IETF has changed of cial policy onthis issue more than once, leaving some documentation out of date and in a state of confusion. As of January...
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Principles of Network and System Administration 2nd phần 8 pps
... nature of possible threats to the security of a human–computer system. 444 CHAPTER 11. PRINCIPLES OF SECURITYAuthentication is usually performed at the start of a session between client and system. ... Automated tape backup and restore isdiscussed in ref. [184] and in the Amanda system [283]; the AFS backup system is discussed in ref. [151]. A review of how well backup systems deal with specialUnix ... server’s disk and causingthe sendmail daemon to spawn rapidly and slow the system to a standstill.Denial of service attacks are almost impossible to protect against. It is theresponsibility of local...
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Principles of Network and System Administration 2nd phần 9 potx
... ANALYTICAL SYSTEM ADMINISTRATION systems fall into two categories, depending on how we choose our problem toanalyze. These are called open systems and closed systems.• Open system: This is a subsystem ... basis of programmingalgorithms in computer software and the same thing applies to conglomerations of different software systems. The same principle applies to the storage of any kind of information. ... unnecessary prejudice.The languages of Game Theory [ 47] and Dynamical Systems [46] will enable usto formulate and model assertions about the behavior of systems under certainadministrative...
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Principles of Network and System Administration 2nd phần 10 pps
... S=192.0.2.10 LEN=106, ID=535 07 from -> to TCP D=23 S=546 57 Ack=8264195 07 Seq=4095044406 Len=66 Win= 876 0from -> to TELNET C port=546 57 \ 377 \ 372 \30\0VT100\ 377 \360\ 377 \ 372 #\0fromTransfers TERM ... Joiret. Administration of a unix machine network. Proceedings of theLarge Installation System Administration Workshop (USENIX Association:Berkeley, CA), page 1, 19 87. [ 171 ] V. Jones and D. Schrodel. ... usingsequences of system calls. Journal of Computer Security, 6:151–180, 1998.[1 57] C. Hogan. Decentralising distributed systems administration. Proceed-ings of the Ninth Systems Administration...
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