... to address data packets from the sending to the receiving computer As you’ve worked through this guide, you’ve learned that routing takes place at the network layer, and routing is all about recognizing ... utilities that have been discussed in Chapter 11, as well as the traceroute utility for UNIX and Linux computers Computers and routers using IP can report errors and exchange control and status ... The best tools to check connectivity at the network layer are ping, tracert, traceroute (fr UNIX/Linux), and pathping (for Windows 2000/2003), which we discussed in Chapter 11 You should also
Ngày tải lên: 04/07/2014, 13:21
... single client in your environment Windows NT, 2000, 2003, and UNIX/Linux servers can act as a DHCP server; all Windows and UNIX/Linux can act as clients You can use the ipconfig /release and ipconfig ... and Telnet client software, while Windows client operating systems such as Windows 2000 and XP Professional only include the Telnet client Telnet differs from FTP in that you cannot transfer ... connectivity problems At the network layer, you used ping and tracert (or traceroute for a UNIX/Linux computer) to determine if network packets were being properly routed from one host to another
Ngày tải lên: 04/07/2014, 13:21
Practical LPIC 1 linux certification study guide
... Trang 1Practical LPIC-1 Linux Certification Study Guide — David Clinton Trang 2 Practical LPIC-1 Linux Certification Trang 3David Clinton Toronto, Canada ISBN-13 ... book because you’ve decided to earn the Linux Professional Institute’s Server Professional Certification or because you simply want to learn more about Linux administration, you’ve made a great ... About Linux There’s so much I could say about Linux: • It’s the operating system used by more than 95% of the world’s supercomputers • Google, Netflix, and Facebook? Linux, Linux, and Linux
Ngày tải lên: 14/05/2018, 15:10
Practical LPIC-1 Linux Certification Study Guide
... Trang 1Practical LPIC-1 Linux Certification Study Guide — David Clinton Trang 2 Practical LPIC-1 Linux Certification Trang 3David Clinton Toronto, Canada ISBN-13 ... book because you’ve decided to earn the Linux Professional Institute’s Server Professional Certification or because you simply want to learn more about Linux administration, you’ve made a great ... About Linux There’s so much I could say about Linux: • It’s the operating system used by more than 95% of the world’s supercomputers • Google, Netflix, and Facebook? Linux, Linux, and Linux
Ngày tải lên: 04/11/2019, 07:47
CompTIA Network+ Certification Study Guide part 76 pdf
... following commands is a Linux-based command used 1 to troubleshoot DNS? A DNSLookup B Nslookup C Dig D Query Correct answers and explanations: C Answer C is correct, because Dig is a Linux-based command ... starts and ends You have an environment that has many Linux-based machines on 9 it Which of the following tasks can be performed on your Linux-based machines with the ifconfig command? Choose ... incorrect because dig is a com-mand used to perform DNS queries and is used to troubleshoot from Linux-based systems Answer E is incorrect because nslookup is a command used to perform DNS queries
Ngày tải lên: 04/07/2014, 13:21
Zend PHP Certification Study Guide- P9
... incorporates a particular brand of database—for example, LAMP stands for Linux/Apache/MySQL/PHP When it comes to the certification program, however, you are not required to know how any DBMS ... yourself in a situation in which any number of different DBMSs could be used Because the goal of the certification program is to test your proficiency in PHP—and not in a particular DBMS—you will find ... database concepts and techniques because we are somewhat constrained by the rules set in place by the certification process However, you can find a very large number of excellent resources on creating
Ngày tải lên: 20/10/2013, 14:15
Zend PHP Certification Study Guide- P13
... 224 Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark 17 7090 index 7/16/04 8:43 AM Page 225 Index Symbols !== (identity) operator, code writing guidelines, 190 ++ (prefix ... ) function, 71 arsort( ) function, 77-78 asort( ) function, 77-78 Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark 17 7090 index 226 7/16/04 8:43 AM Page 226 assigning ... make this index more useful? Email us at indexes@samspublishing.com Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark 231 17 7090 index 232 7/16/04 8:43 AM Page 232 htmlentities(
Ngày tải lên: 28/10/2013, 19:15
Tài liệu Troy Technologies USA_ A+ CERTIFICATION STUDY GUIDE Core Exam doc
... Trang 1Troy Technologies USAA+ CERTIFICATION STUDY GUIDE Core Exam Edition 4 Trang 2You have purchased one of the Troy Technologies USA Study Guides. This study guide consists of a selection of ... official A+ Core Certification exam All you need to do is study and memorize the following questions and answers and you will be ready to take the exam Remember, we guarantee it! Average study time ... Average study time is 10 to 15 hours Then you are ready. We will gladly refund the cost of this study guide However, you are not going to need this guarantee if you follow the above instructions.
Ngày tải lên: 10/12/2013, 15:15
CompTIA Network+ Certification Study Guide part 79 doc
... 190 Initialization vector (IV), 193, 194, 463 Institute of Electrical and Electron- ics Engineers (IEEE), 639 history and fundamentals of, 639–640 Institute of Radio Engineers (IRE), 639, 640 ... protocols, 256 Network troubleshooting tools cable testers, 559 Ethernet crossover cable, 558–559 Linux tools, 563–564 dig command, 555–556 ifconfig command, 553–555 traceroute command, 557 netware ... frequency behaviors, 175–178 security, 216–220 in Windows Vista Business, 219–220 in Windows XP Professional, 216–219 wireless communication in, 179 185 radio frequency, 180–181 spectrum, 181–182
Ngày tải lên: 04/07/2014, 13:20
CompTIA Network+ Certification Study Guide part 1 pps
... Trang 2CompTIA Network+ Certification Study Guide Trang 3This page intentionally left blankTrang 4CompTIA Network+ Certification Study Guide Exam N10-004 2E Robert J Shimonski ... CompTIA Network+ certification study guide / Robert J Shimonski [et al.] — 2nd ed p cm Includes index ISBN 978-1-59749-429-8 (pbk : alk paper) 1 Computer networks—Examinations—Study guides 2 Electronic ... Publishing, Inc Elsevier, Inc 30 Corporate Drive Burlington, MA 01803 CompTIA Network+ Certification Study Guide Copyright © 2009 by Elsevier, Inc All rights reserved Printed in the United States
Ngày tải lên: 04/07/2014, 13:20
CompTIA Network+ Certification Study Guide part 3 ppt
... later) Web servers for the Internet Linus Torvalds used UNIX as the basis for developing Linux 20 years later Linux is open source, mean-ing that the code is available to use for free, and is the ... error Having earned its place in history, the original UNIVAC currently resides in the Smithsonian Institute Although UNIVAC was the more successful computer of its day, 1953 saw IBM release the
Ngày tải lên: 04/07/2014, 13:20
CompTIA Network+ Certification Study Guide part 6 ppt
... network that consists of one computer Q: running an Apple iMac and another running Windows 2000 Professional Each of them has network adapters installed already I want to network them together, ... understanding of transmission media types, connectors, and termination is essential to being a networking professional In this chapter, we will learn the fundamentals of cabling, the connectors used with
Ngày tải lên: 04/07/2014, 13:20
CompTIA Network+ Certification Study Guide part 23 pptx
... wireless manufacturers or can be easily changed through a Windows registry modification or through Linux system utilities Once a valid MAC address is identified, the attacker needs only to reconfigure ... Although it would take addi-tional resources to build a rogue AP, these tools will run from any Linux machine Once an attacker has identified a network for attack and spoofed his MAC address to
Ngày tải lên: 04/07/2014, 13:21
CompTIA Network+ Certification Study Guide part 24 ppsx
... XP Professional computer is outlined in Exercise 5.1 Trang 2Configuring Windows Client Computers for Wireless Network Security 217ExErcisE 5.1 Enabling WEP and 802.1x security in Windows xP Professional ... rarely a second chance for security, especially when it comes to securing a wireless LAN windows xp professional Windows XP has been hailed as the OS of choice for wireless LAN users Whatever your ... sec-tion, we will be focusing primarily on using WEP, WPA, and 802.1x-based security on Windows XP Professional computers and Windows Vista Whatever security mechanism you should decide to implement,
Ngày tải lên: 04/07/2014, 13:21
CompTIA Network+ Certification Study Guide part 29 ppt
... but no published specification currently exists UNIX and Linux clients can connect to SMB shares using smbclient from SAMBA or smbfs for Linux Server implementations of SMB for non-Microsoft ... (or available for use) on non-Microsoft operating system-based computers Computers running UNIX, Linux, and other non-Microsoft operating systems typically use DNS for name resolution although ... used to transmit e-mail messages between servers and from clients (such as Microsoft Outlook or Linux’s sendmail) to e-mail servers (such as Microsoft Exchange) However, most e-mail clients use
Ngày tải lên: 04/07/2014, 13:21
CompTIA Network+ Certification Study Guide part 30 potx
... administrator for a small company that runs 8 two Windows servers (Windows Server 2003) and two Linux servers (SUSE Linux) You need to lock down the connections to the switch via port security; this essentially ... essentially means you will need to retrieve the MAC addresses on the systems MAC addresses are found on Linux server by issuing which command? A ipconfig /a B ifconfig /a C winipcfg /a D ifconfig –a From
Ngày tải lên: 04/07/2014, 13:21
CompTIA Network+ Certification Study Guide part 43 pot
... an e-mail relay that then forwards it E-mail relays are a double-edged sword and most security professionals prefer to have this function disabled on all publicly accessible e-mail servers On ... performance making small changes to the access controls to more easily manage the rule sets Using these guidelines, administra-tors should be able to quickly get the site up and running without creating ... PPTP is so simple, it is frequently implemented, even in non-Microsoft OSs such as Mac OS X and Linux As a simple protocol, it is ideal for small low-power devices, such as mobile phones and personal
Ngày tải lên: 04/07/2014, 13:21
CompTIA Network+ Certification Study Guide part 45 potx
... Acronyms Two specific abbreviations need to be explained to avoid confusion For general security study, AAA is defined as “Access Control, Authentication, and Auditing.” Do not confuse this with ... Sarbanes-Oxley Act and the Health Insurance Portability and Accountabil-ity Act of 1996 (HIPAA) guidelines may refer to CIA as “confidentiality, integrity, and authentication.” Trang 8access ... be used if the OS was designed to be used by multiple users Windows, Novell Netware, UNIX, and Linux have all had local authentication paths early in their development Although this is the most
Ngày tải lên: 04/07/2014, 13:21
CompTIA Network+ Certification Study Guide part 46 potx
... (Internet Authentication Services [IAS]), Microsoft WinWin-dows 2008 (Network Policy Server [NPS]), and Linux systems using Kerberos or through non-OS implementations such as RSA Enterprise SSO (ESSO) ... Policies can be configured in Microsoft Windows 2003 through IAS, in Windows 2008 through NPS, and in Linux variants through FreeRADIUS Biometrics Biometric devices can provide a higher level of authentication ... SBR EE for Windows XP/2003, Sun Solaris 9/10 [SPARC] and 32-bit versions of Red Hat Enterprise Linux ES 4.0/5) Configure RADIUS clients (routers, switches, or WAPs) providing the ■ ■ RADIUS server
Ngày tải lên: 04/07/2014, 13:21
CompTIA Network+ Certification Study Guide part 53 pps
... accounts are configured off a standard guideline. Policies provide guidelines on who can create user accounts for instance. Procedures are much more than guidelines. Procedures lay out each ... asks you over the phone to develop a calcu- lated plan of action to guide decisions and achieve sound outcomes that provide guidelines that the installation contractors will use on CHAPTER 10: ... comparing your “normal” conditions to previous peri- ods of operation. A calculated plan of action to guide decisions and achieve sound outcomes is the goal of creating and adhering to policies,
Ngày tải lên: 04/07/2014, 13:21