unix and linux electronic

... vendor- supplied file and you will have lost those changes. 4 Unix and Linux Backups – SANS GIAC LevelOne © 2000, 2001 4 Unix/ Linux Backup Commands •tar •dump •dd •cpio (in Appendix) The archival commands we ... flags for tar and dump are optional. Dashes however, are not used with dd. 41 Unix and Linux Backups – SANS GIAC LevelOne © 2000, 2001 41 Tutorial Outline • Unix/ Linux Backup commands • Tape operation • ... vulnerable target and how it can be hardened and made less vulnerable against future attacks. 2 Unix and Linux Backups – SANS GIAC LevelOne © 2000, 2001 2 Course Objectives • Use three Unix/ Linux backup...

Ngày tải lên: 17/01/2014, 08:20

... look at some of the security issues associated with syslog. 1 UNIX/ Linux Auditing – SANS GIAC LevelOne © 2000, 2001 1 Basic UNIX and Linux Auditing John Green jegreen@crosslink.net Hello, my name ... program and goes away On a UNIX operating system, the Internet daemon, inetd, listens for connections and services them upon arrival. It does this by starting the requested server and then handing ... network connections and understand how to audit these for intrusion detection or incident handling purposes. Please go on to the next slide titled “Auditing User Activity”. 8 UNIX/ Linux Auditing...

Ngày tải lên: 17/01/2014, 08:20

... Congress Cataloging-in-Publication Data UNIX and Linux system administration handbook / Evi Nemeth [et al.]. —4th ed. p. cm. Rev. ed of: Unix system administration handbook, 3rd ed., 2001. Includes ... 36 ptg xxxiv UNIX and Linux System Administration Handbook Integrity Virtual Machines in HP-UX. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1003 Creating and installing ... . . . . . . . . . . . . . . . . . . . . . . . . . . .1038 ptg xii UNIX and Linux System Administration Handbook Attachment and low-level management of drives . . . . . . . . . . . . . . . ....

Ngày tải lên: 19/03/2014, 13:36

... command written in Perl and its grep counterpart: $ grep &apos ;Linux& apos; /etc/motd Welcome to your Linux system! $ perl -wnl -e ' /Linux/ and print;' /etc/motd Welcome to your Linux ... study 201 Part 2 Minimal Perl: for UNIX and Linux Shell Programmers 203 7 Built-in functions 205 7.1 Understanding and managing evaluation context 206 Determinants and effects of evaluation context ... standard input. This allows pipelines to work as expected, as shown by this variation on the previous command: $ cat /etc/motd | perl -wnl -e ' /Linux/ and print;' Welcome to your Linux...

Ngày tải lên: 25/03/2014, 10:27

... the problem is, as well as what input will be used and Web Application Design and Implementation: Apache 2, PHP5, MySQL, JavtiScript, and Linux /UNIX, by Steven A. Gabarr6 Copyright © 2007 by John Wiley ... thought of connecting computers through Web Application Design and Implementation: Apache 2, PHP5, MySQL, JavaScript, and Linux /UNIX, by Steven A. Gabarr6 Copyright © 2007 by John Wiley & ... current user. If what you use is lJNIX or Linux, the two main email clients I know and have used are "Pine" (Program for Internet News & Mail) and "Elm" (Electronic Mail), but I would...

Ngày tải lên: 28/04/2014, 17:09

Ngày tải lên: 20/08/2013, 20:02

... program and the accuracy of the data. 3.3.1 Windows Reading and writing to a serial port in Windows is very simple and similar to reading and writing to a file. In fact, the functions used to read and ... is now opened and, in this case, fd is a handle to the opened device file. As can be seen, if the open() function call fails, the device handle is set to −1 and by checking the handle against ... input/output operations the ReadFile() and WriteFile() operations will block until the requested data is either received or the operation times out. 3.3.2 Linux Reading and writing data under Linux is just as easy as...

Ngày tải lên: 05/11/2013, 20:15

... transistors, diodes, and inte- grated circuits, and these are made with semiconductors. It’s semiconductors that have made possible much tinier electronic gadgets (like handheld computers and palm-sized ... Chapter 1, we state that electricity is made up of two elements: voltage and current. Voltage and current work hand-in-hand and in ways that directly influence the severity of electrical shock. ... resistance in ohms, voltage in volts, and current in amperes (amps for short). Table 1-1 shows common units and abbreviations used in electronics. Table 1-1 Units Used in Electronics Term Abbreviation...

Ngày tải lên: 22/12/2013, 20:18

... 215 Sticking to common oscilloscope features 216 Bench, handheld, or PC-based? 217 Understanding oscilloscope bandwidth and resolution 219 The ins and outs of using an oscilloscope 219 What all the ... playing with wires and batteries, it helps to understand what puts the elec in electricity and electronics. In this chapter, you discover all about how electrons make electricity and how harnessing ... Non-cost and Genuine ! Part I Getting Started in Electronics TEAM LinG - Live, Informative, Non-cost and Genuine ! About the Authors Gordon McComb has penned 60 books and over a thousand magazine...

Ngày tải lên: 22/12/2013, 20:18

... Chapter 1, we state that electricity is made up of two elements: voltage and current. Voltage and current work hand-in-hand and in ways that directly influence the severity of electrical shock. ... voltage, and the current. If you’re over 50 or in poor health, you probably won’t stand up to injury as well as if you’re 14 and as healthy as an Olympic athlete. But no matter how young and healthy ... From Electrons to Electronics TEAM LinG - Live, Informative, Non-cost and Genuine ! Chapter 2 Keeping Humans and Gadgets Safe In This Chapter ᮣ Using common sense when working with electronic components ᮣ Avoiding...

Ngày tải lên: 22/12/2013, 21:18

... cir- cuits and electronics are equally applicable to both the digital and the analog domains, this means that, primarily, we must change the way in which we motivate circuits and electronics ... Circuits and Electronics to First-Year Students,’’ in Int. Symp. Circuits and Systems (ISCAS), 1998, Yannis Tsividis makes an excellent case for teaching an integrated course in circuits and electronics. xix CONTENTS xvii A.1.2 ... model and discusses how physical elements can be modeled using ideal resistors and sources. It also discusses information processing and signal representation. Chapter 2 introduces KVL and KCL and...

Ngày tải lên: 09/01/2014, 17:03

... “Digital and Analog Electronic Design Automation” The Electrical Engineering Handbook Ed. Richard C. Dorf Boca Raton: CRC Press LLC, 2000 © 2000 by CRC Press LLC Matching the output response vector and ... used extensively to detect and correct transmission errors on system buses and networks, storage errors in system memory, and computational errors in processors [Peterson and Weldon, 1972]. Finally, ... simulation and more-abstract functional simula- tion. Starting in the mid to late 1970s, new areas of test and synthesis emerged and vendors started offering commercial DA products. Today, the electronic...

Ngày tải lên: 19/01/2014, 20:20

... truyền An toàn mật khẩu trên hệ thống mạng UNIX và LINUX Bài viết này mô tả những cách thức kiểm tra tính an toàn mật khẩu trên các hệ thống UNIX, LINUX, và các hệ thống *.nix nói chung. Như ... gửi tới máy chủ, nếu mật OpenBSD, SCO, Solaris, SunOS, and Ultrix OPIE 2.32 The Inner Net *nix (Theo Password Security on Unix and Linux Networks của Jennifer Kolde ) ... tâm nghiên cứu giáo dục thuộc trường đại học Purdue (CERIAS) *nix; Solaris, Linux, FreeBSD, NetBSD, OSF, and Ultrix anlpasswd 2.3 Có r ất nhiều Website cung cấp, gồm cả server FTP...

Ngày tải lên: 20/03/2014, 08:21

... options and keywords are also indicated with the courier bold font. Command line examples may or may not include the command line prompt and output text from the results of the command. Command ... SecurityCenter. STANDARDS AND CONVENTIONS Throughout the documentation, filenames, daemons, and executables are indicated with a courier bold font such as gunzip, httpd, and /etc/passwd. Command line ... of the equation and test to make sure that the accounts and networks are configured correctly. Using the simple Unix command id, from the Nessus scanner, run the following command: # ssh -i...

Ngày tải lên: 22/03/2014, 15:21

... ‘‘Circuits and Electronics’’ is taught in both the spring and fall semesters at MIT, and serves as a prerequisite for courses in signals and systems, digital/computer design, and advanced electronics. ... between 1991 and 2003, and as an Associate Editor of ‘‘Sensors and Actuators’’ between 1991 and 1994. Professor Lang’s research and teaching interests focus on the analysis, design and control ... power electronics and applied control, and has been awarded four best-paper prizes from IEEE societies. Professor Lang is a Fellow of the IEEE, and a former Hertz Foundation Fellow. Agarwal and...

Ngày tải lên: 23/03/2014, 08:21

... of art and politics in the interstices between seduction and conquest. Between Sea and Sahara is based on memories and notes of Fro- mentin from three different stays in Algeria. He organized and ... metal and old nails. The Kasbah’s streets as well as those that go down toward Between Sea and Sahara I  was used by both Delacroix and Ingres (cf. the Louvre’s La Grande Odalisque of ) and ... that are mean and noisy and of ill repute. There are those green shutters, ridicu- lous signs, and the unknown ways. The streets are suspect and filled with suspect houses, with wandering sailors,...

Ngày tải lên: 29/05/2014, 14:32

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Ngày tải lên: 29/05/2014, 23:46