chapter 9 system maintenance and security
lesson 9: Linux Operating System Vulnerabilities and security pdf
Ngày tải lên :
29/07/2014, 08:20
... protecting the Linux operating system Review of Linux Security Fundamentals ♦ Linux is a version of UNIX – Usually available free – Red Hat – Ubuntu – Mandrak – Sambian – Knoppix Crack Password ♦ /etc/passwd ... SMB and NetBIOS – Enumerate shared resources – Discover the root password 12 13 14 15 Linux OS Vulnerabilities ♦ Test Linux computer against common known vulnerabilities – Review the CVE and ... operating – The attacked system’s password and login accounts 19 Installing Trojan Programs ♦ Trojan programs spread as – E-mail attachments – Fake patches or security fixes that can be downloaded...
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CHAPTER 9: Production Costs and Business Decisions
Ngày tải lên :
17/12/2013, 15:19
... consuming them Together, marginal costs and benefits determine how many units will be produced and consumed up to the intersection of the marginal cost and demand (marginal benefit) curves, the marginal ... Production Costs and Business Decisions 14 a particular service – healthcare responding to the market forces of supply and demand Unfortunately, the forces have been distorted by legal and political ... If private firms and Washington-based politicians want to reform the system and temper cost increases, they can so by working with the forces of supply and demand, which means, fundamentally,...
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Chapter 9 unbalanced operation and single phase induction machines
Ngày tải lên :
16/02/2014, 18:48
... Systems, Vols I and II, John Wiley and Sons, New York, 1943 and 1950 [3] W.V Lyon, Transient Analysis of Alternating-Current Machinery, Technology Press of MIT and John Wiley and Sons, New York, ... (9.4-29) and (9.4-30) for stator variables and similar relationships for rotor variables from (9.6-15) and (9.6-16) into the steady-state equations, we will obtain 354 UNBALANCED OPERATION AND SINGLE-PHASE ... ias z( p) + vas (9.8-34) egb = vbs (9.8-35) where νas and νbs are the voltages across the stator phases and ega and egb are source voltages, and z(p) is the operational impedance in series with...
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Tài liệu Chapter 9 Using Telephone and Cable Networks for Data Transmission pptx
Ngày tải lên :
16/02/2014, 20:20
... Standards 9.10 Figure 9.6 Telephone line bandwidth 9.11 Note Modem stands for modulator/demodulator 9.12 Figure 9.7 Modulation/demodulation 9.13 Figure 9.8 The V.32 and V.32bis constellation and ... carry frequencies between 300 and 3300 Hz, giving them a bandwidth of 3000 Hz All this range is used for transmitting voice, where a great deal of interference and distortion can be accepted ... technology Topics discussed in this section: Bandwidth Sharing CM and CMTS Data Transmission Schemes: DOCSIS 9.30 Figure 9.16 Division of coaxial cable band by CATV 9.31 Note Downstream data are...
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Plant physiology - Chapter 9 Photosynthesis: Physiological and Ecological Considerations pptx
Ngày tải lên :
07/03/2014, 20:20
... Chapter (see LIGHT, LEAVES, AND PHOTOSYNTHESIS Figures 7.2 and 7.3, and Web Topic 7.1) A discussion of the Scaling up from the chloroplast (the focus of Chapters and amount and direction of light ... inhibited and photosynthesis becomes phosphate limited (Geiger and Servaites 1994) Starch synthesis and sucrose synthesis decrease rapidly with temperature, reducing the demand for triose phosphates and ... irregular in shape and are surrounded by large air spaces (see Figure 9.4) The large air spaces generate many interfaces between air and water that reflect and refract the light, thereby randomizing...
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chapter 9 configuring ip and ip rip
Ngày tải lên :
09/07/2014, 08:09
... and loopback interface The 9304M, 9308M, and 6308M-SX routing switches support both classical IP network masks (Class A, B, and C subnet masks, and so on) and Classless Interdomain Routing (CIDR) ... Assigning IP and IP/RIP Filters You can define IP and IP/RIP filters on a global basis and assign filters on an interface basis You also can define filters for redistributing routes among RIP and OSPF ... policies and filters For more information, see “Policies and Filters” on page D-1 9-13 Advanced Configuration and Management Guide Defining IP Access Policies You can enhance network security...
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Chapter 9: EC Strategy and Implementation Plan docx
Ngày tải lên :
31/07/2014, 17:20
... Integration with the corporate legacy systems Security and control of the EC system Competition and market situation Pilot project and corporate knowledge Promotion and internal communication Cost of the ... digital cash widely used, smart cards, and fewer wholesaler/salespeople IT Events : Standards vary between industries, objective measures of Internet security, EDI standards widely adopted Business ... Marketing Channels Scenario IT Events : Transaction processing and interface, distributor drive EC, EC activity expands rapidly, and transaction security deeply embedded Business Events : One-stop shopping...
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Chapter 9: Oscilator strengths and related topics doc
Ngày tải lên :
11/08/2014, 11:22
... understanding of each step in the derivation requires an understanding and recall of some results from classical mechanics and electromagnetic theory, it is not at all difficult to understand qualitatively ... Boltzmann’s equation and plot a straight-line graph whose slope and intercept will give us the excitation temperature and the column density of W the atoms We can go further and make use of Saha’s ... multiplets, seven lines, and I don’t think we ever worked out quite how many Zeeman and hyperfine components The hydrogen atom is a two-body system, and for such a system the wavefunction and its eigenvalues...
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Availability and reliability analysis of computer software systems considering maintenance and security issues
Ngày tải lên :
10/09/2015, 15:51
... (Jelinski and Moranda, 1972; Goel and Okumoto, 1979; Shanthikumar, 1981) and now has expanded to the consumers‘ point of view of software end users in software availability (Tokuno and Yamada, 2003) and ... procedures (Glass and Noiseux, 1981), predicting and prioritizing maintenance requests (Munson, 1981), guidelines for modifying and testing software (Yourdon, 1980), and implementation and integration ... the framework of software maintenance methods Feng et al (2006) conducted a study on two software maintenance policies: time-based maintenance and work-based maintenance and they provide insights...
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Programming the Be Operating System-Chapter 9: Messages and Threads
Ngày tải lên :
17/10/2013, 19:15
... message and then handles that message is determined by the Application Kit classes BLooper and BHandler A BLooper object runs a message loop in a thread This message loop receives messages and dispatches ... looper and then dispatched to a handler Posting and dispatching a message Once created, a message needs to be placed in the message loop of a looper’s thread and then delivered to a handler The ... BHandler *message, *handler, *replyHandler = NULL) The first parameter, message, is the BMessage object to post The second parameter, handler, names the target handler—the BHandler object to which...
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Cryptography and Network Security Chapter 9 doc
Ngày tải lên :
06/03/2014, 16:20
... Public Key Cryptography and RSA Every Egyptian received two names, which were known respectively as the true name and the good name, or the great name and the little name; and while the good or ... which may be known by anybody, and can be used to encrypt messages, and verify signatures a private-key, known only to the recipient, used to decrypt messages, and sign (create) signatures is ... primes at random - p, q select either e or d and compute the other primes p,q must not be easily derived from modulus n=p.q means must be sufficiently large typically guess and use probabilistic...
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Internet Security Cryptographic Principles, Algorithms and Protocols - Chapter 9 pot
Ngày tải lên :
09/08/2014, 06:23
... scheme using compression algorithm 308 INTERNET SECURITY of Standards and Technology (NIST) has published FIPS PUB 186, known as the Digital Signature Standard (DSS) The DSS uses an algorithm that ... implement and also fast In 1982 James Storer and Thomas Szymanski presented their scheme, LZSS, based on the work of Lempel and Ziv In LZSS, the compressor maintains a window of size N bytes and a ... ELECTRONIC MAIL SECURITY: PGP, S/MIME 325 will emerge as the industry standard for commercial and organisational use This section describes a protocol for adding digital signature and encryption...
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Chapter 9: Working with Selections and Selection Layers
Ngày tải lên :
27/08/2012, 14:31
... box until all dirt and rough lines that may have scanned in disappear and the line art looks how you’d like it to be Click the Move and Transform tab and resize, reposition, and rotate your image ... collection of trees, skies and clouds, and mountains • Pattern: Tones that you can use for the background of a scene These are random types of patterns (animals, flowers, and so on), and you can use them ... collection of trees, skies and clouds, and mountains • Pattern: Tones that you can use for the background of a scene These are random types of patterns (animals, flowers, and so on), and you can use them...
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Mechanisms and Mechanical Devices Sourcebook - Chapter 9
Ngày tải lên :
22/10/2012, 14:26
... require lubrication and maintenance The rubbing parts also absorb power Moreover, the lubricant and the seals limit the coupling environment and coupling life Parts wear out, and the coupling can ... bi-directional slip and independent torque capacities for the two directions of rotation It requires two springs, one right-handed and one left-handed, for coupling the input, intermediate and output ... faster Edges of the clutch bands carry the entire load, and there is also a compound action of one band upon another As the torque builds up, each band pushes down on the band beneath it, so each...
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Process technology equipment and systems chapter 9, 10 & 11
Ngày tải lên :
21/08/2013, 10:47
... water and steam flow rates and temperatures and water level in the boiler The operator also checks for smoke and checks burner and flame pattern The operator maintains good housekeeping and unit ... the trap and comes into contact with the bellows Condensate causes the bellows to contract and open Steam causes the bellows to expand and close Bellows traps can handle condensate and noncondensable ... Furnaces Broken Supports and Guides Broken supports and guides tend to fall to the furnace floor and result in sagging or bowing tubes The falling supports and guides can also hit and damage a burner...
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Tài liệu The Complete Guide to Buying and Selling Apartment Buildings Chapter 9-10 doc
Ngày tải lên :
14/12/2013, 19:15
... yourself, and sit down and talk directly with the lender This gives you the opportunity to sell yourself and your project Once a relationship has been established and the banker gets to know you and ... financing is a very specialized and multifaceted discipline that requires intimate familiarity with the process You need to know and understand the advantages and disadvantages of each type of ... Negotiation Strategies and the Due Diligence Process professional Your own eyes and ears act as receptors and can tell you things about a property no inspector could ever tell you Records and Documentation...
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Tài liệu Chapter 9: Center of Mass and Linear Momentum docx
Ngày tải lên :
23/12/2013, 00:16
... momentum is Momentum and Kinetic Energy in Collisions Consider two colliding objects with masses m1 and m2 , r r r r initial velocities v1i and v2i and final velocities v1 f and v2 f , respectively ... two colliding objects with masses m1 and m2 , r r r r initial velocities v1i and v2i and final velocities v1 f and v2 f , respectively Both linear momentum and kinetic energy are conserved Linear ... Kinetic energy conservation: + = + 2 2 We have two equations and two unknowns, v1 f and v1 f (eqs.1) (eqs.2) If we solve equations and for v1 f and v1 f we get the following solutions: m1 − m2 2m2 v1...
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