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 own right. ... database 10771 files and directories currently installed.) Unpacking bison (from /bison_1%3a1 .35 -3_ i386.deb) Setting up bison (1 .35 -3) 122 CHAPTER 4. HOST MANAGEM...

Ngày tải lên: 13/08/2014, 22:21

... the system at hand. The aim of this chapter is to learn how to navigate network systems using standard tools, and place each piece of the puzzle into the context of the whole. 3. 1 Communities and ... There are two types of Windows system with separate software licenses: workstations and servers.Windowscanworkasastand-alonesystemorasaworkstation, integrated into a system...

Ngày tải lên: 13/08/2014, 22:21

... competing system to SNMP called COPS-PR [101]. 6 .3. NETWORK ADMINISTRATION MODELS 207 6 .3 Network administration models The management of clusters of systems leads to the concept of logistic networks. Here ... 6 Models of network and system administration Understanding human–computer systems requires an ability to see relationships between seemingly distinct parts...

Ngày tải lên: 13/08/2014, 22:21

... attempts to keep track of changes in individual systems using a method of revision control. A typical Unix system might consist of thousands of files comprising software and data. All of the files (except ... freak coincidence of human social structures; it is a property of a kind of network known as a small-world network [31 9]. Definition 6 (Small-world network) . Ther...

Ngày tải lên: 13/08/2014, 22:21

... instance, has four networks: 128 .39 .89.0, 128 .39 . 73. 0, 128 .39 .74.0 which includes 128 .38 .75.*.So we would create files master/rev.128 .39 .89, master/rev.128 .39 . 73 etc., one for each network. These ... [30 7, 200, 30 3]. More often than not, performance tuning is related to the availability or sharing of system resources. This requires tuning the system kernel. The most c...

Ngày tải lên: 13/08/2014, 22:21

... Scientific Principles of Network and System Administration, J. Wiley & Sons, 2004. 10.4. ALTERNATIVE NETWORK TRANSPORT TECHNOLOGIES 39 9 by N bits, or wavelengths of the bit signal, and the right-hand ... daneel (128 .39 .89. 230 ) from 128 .39 .74.16 : 9064(9092) bytes 9072 bytes from daneel (128 .39 .89. 230 ): icmp seq=1 ttl= 63 time=17.1 ms 9072 bytes from daneel (12...

Ngày tải lên: 13/08/2014, 22:21

... refs. [65, 32 0]. Automated tape backup and restore is discussed in ref. [184] and in the Amanda system [2 83] ; the AFS backup system is discussed in ref. [151]. A review of how well backup systems ... nature of possible threats to the security of a human–computer system. 444 CHAPTER 11. PRINCIPLES OF SECURITY Authentication is usually performed at the start of a sessi...

Ngày tải lên: 13/08/2014, 22:21

... the quality of our resources here. See figures 13. 2 and 13. 3. Processes • Number of privileged processes: The number of processes running the system provides an indication of the number of forked ... (4.0.1.1 53) 116 ms 116 ms 1 23 13 cambridge1-br1.bbnplanet.net (4.0.1.122) 131 ms 136 ms 14 cambridge1-br1.bbnplanet.net (4.0.1.122) 133 ms 124 ms 15 cambridge1-cr1.bbnplanet.ne...

Ngày tải lên: 13/08/2014, 22:21

... D=192.0.2. 238 S=192.0.2.10 LEN=106, ID= 535 07 from -> to TCP D= 23 S=54657 Ack=826419507 Seq=4095044406 Len=66 Win=8760 from -> to TELNET C port=54657 \37 7 \37 2 \30 \0VT100 \37 7 \36 0 \37 7 \37 2#\0from Transfers ... Practice of System Administration, T.LimoncelliandC.Hogan,Addison Wesley, 2002. 2. Unix System Administration Handbook, E. Nemeth, G. Synder, S. Seebass an...

Ngày tải lên: 13/08/2014, 22:21