Networking: A Beginner’s Guide Fifth Edition- P70 docx

... Command-Line BasicsHistorically, the aspect of UNIX that makes it so powerful and flexible has been the options available through the command line. Casual observers of UNIX gurus are often astounded ... 331Chapter 21: Introduction to Linux Systems Administrationto IP addresses, and vice versa. Many times, the appropriate DNS servers to use are automatically assigned through the ... astounded at how a few carefully entered commands can result in powerful actions. Unfortunately, this power comes at the expense of ease of use. For this reason, GUIs have proliferated and have become...

Networking: A Beginner’s Guide Fifth Edition- P10 docx

... physical layer so the network layer (layer 3) can transmit its data. The data-link layer typically includes error detection and correction to ensure a reliable data stream. The data elements carried ... part of the physical layer.Data-Link LayerThe data-link layer, layer 2, defines standards that assign meaning to the bits carried by the physical layer. It establishes a reliable protocol through ... known as the packet layer) into a separate layer from the physical and data-link layers means the protocols defined in this layer can be carried over any variations of the lower layers. So, to...

Networking: A Beginner’s Guide Fifth Edition- P14 docx

... guessed it a much thicker coaxial cable called RG-8. Figure 4-6 shows an example of coaxial cable.Fiber-optic cable uses a glass strand and carries the data signals as light instead of electricity. ... using connectors and patch cables that also meet that level of performance. For example, for a Cat-5 installation, you must have Cat-5 cable, connectors, patch panels, and patch cables. The entire ... Industries Alliance (EIA) and the Telecommunications Industry Association (TIA) and are referred to as Levels 1 and 2 and Categories 3, 4, 5, and 6. The different category levels are simply called Cat-3...

Networking: A Beginner’s Guide Fifth Edition- P22 docx

... model, the application layer. Network layer units of data, such as those carried by IP, are called datagrams.Units of data carried at the data-link layer (layer 1) are called frames.All of these ... than IP, at the transport layer. TCP manages connections between computers. TCP messages are carried (encapsulated) in IP datagrams.The User Datagram Protocol (UDP) serves the same role as ... is called a connectionless protocol.) The chief advantage to UDP is that it is much faster for trivial network communications, such as sending a web page DEFINE-IT! Datagrams, Frames, and PacketsA...

Networking: A Beginner’s Guide Fifth Edition- P51 docx

... You are asked whether to perform an upgrade installation or a custom (clean) installation of Windows Server 2008, as shown in Figure 16-5. If you are installing on a computer that has an upgradable ... log in. 12. After you set your password and log in, you will soon see the new server’s desktop, along with the Initial Configuration Tasks window (which appears automatically), as shown in ... Server 2008 you are installing, as shown in Figure 16-4. (If you pro-vided a key, the installation program can determine this automatically.)5. Choose to accept the license terms, and then click...

Networking: A Beginner’s Guide Fifth Edition- P53 docx

... checkbox. You can choose any combination of roles that you need, and the wizard will walk you through any necessary additional setup with a minimum of hassle. In this example, we are installing Windows ... networking246 Networking: A Beginner’s Guide CAUTION Join an existing forest only if you are the network administrator responsible for the existing Active Directory forest, and you are adding a new domain ... 2008 as a stand-alone domain controller. Using the Add Roles Wizard, choose the Active Directory Domain Services role, and then click Next to install them. (You cannot install other roles at...

Networking: A Beginner’s Guide Fifth Edition- P64 docx

... recommends that each domain controller also act as a DNS server, and you must have at least one primary and secondary DNS server for each managed zone. Understanding RRASRouting and Remote Access ... DNS Manager window.When you set up DNS for an organization, you first establish a root namespace (a virtual location in which domain names are stored), usually using the domain name you have ... domain, DNS services are automatically installed at the same time; otherwise, you must select them manually to add them. A Windows Server 2008 running DNS services can manage your own domains and...

Networking: A Beginner’s Guide Fifth Edition- P71 docx

... embed commands as parameters to other commands. A common instance of the use of this character is to pass a number sitting in a file as a parameter to the kill command. A typical instance of ... Environment VariablesTo set an environment variable, use the following format:[root@ford /root]# variable=valuewhere variable is the variable name, and value is the value that you want to assign ... the manual pages; each section covers various subject areas. The section numbers are handy for some tools, such as printf, that are commands in the C programming language as well as command-line...

Networking: A Beginner’s Guide Fifth Edition- P88 docx

... Directory Access Protocoldata channels (D-channels), 82data communications equipment (DCE), 50data corruption, 172data terminal equipment (DTE), 50data transfer, synchronous, 79databaseclient/server, ... 167datagram, 90data-link layer, 30DCE. See data communications equipmentD-channels. See data channelsdd command, 344, 344decimal numbering system, 12, 13–14decimal points, 13dedicate print ... 40–41communications. See also datacommunications equipmentdisaster recovery plan, 165plan, 161server, 219compatibility, 199. See also Hardware Compatibility Listapplication, 202Fedora Linux,...

Networking, A Beginner''''s Guide, Fifth Edition (Networking Professional''''s Library) ppt

... on. A NIC, for example, is part of the physical layer.Data-Link LayerThe data-link layer, layer 2, defines standards that assign meaning to the bits carried by the physical layer. It establishes ... 28Physical Layer 30Data-Link Layer 30Network Layer 30Transport Layer 31Session Layer 31Presentation Layer 31Application Layer 32Understanding How Data Travels Through the OSI Layers 32Learning ... the Virtual Machine 384Installing VMware Tools 386Backing Up Virtual Machine Data 388Chapter Summary 388Appendix Understanding the Sarbanes-Oxley Act 389Sarbanes-Oxley Act Summary 390Title...

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