...Week 6 Essay The role of the Domain Name System (DNS) is a standard technology for managing the names of Web sites and other Internet domains. DNS technology allows you to type names into your Web browser and your computer to automatically find that address on the Internet. A key element of the DNS is a worldwide collection of DNS server. The structure of the DNS is a hierarchical namespace allowing the uniqueness of a name to be guaranteed in a tree structure, like UNIX file systems. A system of distribution servers enabling namespace to be made available. a client system making it possible to "resolve" domain names, for example interrogate the servers to find out the IP address corresponding to a name. It is necessary because DNS allows all of these numbers and configuration options to be changed and updated as networks get more and more complicated without requiring the user to keep track of everything. A user doesn't have to send email to different people in the same company. They only need to remember the domain name; even as new servers are added and old servers are removed or replaced. There are two types of DNS servers – primary and secondary. A primary master name server reads data for the domain zone from a file located on the web server of the hosting account. This server usually also sends information to the secondary server as well. A secondary DNS server, also called a slave server or simply a slave, receives zone data from the primary server automatically after...
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...DNS on a Network The role of a Domain Name Server (DNS) is to provide a system that can locate computers, websites and services such as email servers or web servers through human readable names. DNS resolves names by mapping them to IP addresses. It defines a secure database that stores internet host information and distributes this information as a resource record as needed. Other examples of DNS Server Roles are File Services Role, network Policy and Access Services Role, and Terminal Services Role. DNS is structured: 1. Hierarchical that has a root, branches and nodes to provide answers to queries in a timely manner. Each node is called a Domain. 2. Distributed for giving fast access to servers by spanning the DNS database across systems worldwide. These systems are interchangeable in description as Domain server, Nameserver or DNS server. 3. Replicated to share the same information across many systems providing failover. As a result the DNS server is always available. DNS is necessary for network administrators to easily manage name resolution for TCP/IP networks. The DNS snap-in in Microsoft Management Console (MMC) provides a GUI that has multiple configuration wizards that perform common server administration tasks. MMC offers additional tools to help manage clients and DNS servers on the network. DNS has three kinds of servers: 1. Primary Master Server: Holds the master copy of the zone data and is an authoritative server that publishes DNS mapping...
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...Lab 1 answer key Preparing a Second Virtual Server Image This lab contains the following exercises: Exercise 1.1 Creating a Windows Server 2008 Virtual Appliance Exercise 1.2 Performing Initial Configuration Tasks Exercise 1.3 Testing Network Connectivity Exercise 1.4 Installing the DNS Server Role Exercise 1.5 Installing the DHCP Server Role Estimated lab time: 95 minutes Exercise 1.1 | Creating A Windows Server 2008 Virtual Appliance | Overview | This lab assumes that you have the Active Directory Domain Controller and Windows 7 Machines you created in NT1230 (Server##) stored on your hard drive. You are creating a new computer virtual appliance with Windows Server 2008 using VMware Player. Your first task is to create a new Virtual Machine and install Windows Server 2008 Standard 32bit with appropriate settings for the test lab network. This server will become a replica Domain Controller for your test network. | Completion time | 30 minutes | 1. Start VMWare Player and create a new Virtual Machine. Make sure that you have your Windows Server 2008 32 bit installation disk in the DVD player. *Note | Depending on the version of VMWare Player you are using some screens will be slightly different. | 2. Select the installation disk and click next. *Note | If you are using a Windows Server 2008 .iso, Select Installer disc image file (iso): and browse to the location of the .iso file. | 3. Skip the Product key and use “Student...
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...Domain Name System Proper use reduces intranet administration costs Architecture Flexible Scalable Extensible Service Standard Robust Efficient DNS Affordable Reliable Predictable The Internet continues expanding. Its progress seems unstoppable; for years now the rate of growth has been increasing. To easily continue using a more widely spread Internet, and to keep a grip on it, DNS is vital. This article explains the benefit of DNS for business networks and the technological and administrative conditions necessary for the optimal deployment of this technology. The method described here is particularly important for organizations with many employees spread over multiple locations. Domain Name System Proper use reduces intranet administration costs N etwork addresses, such as 192.68.44.134, are difficult for people to remember. The need for associating names with network addresses has been recognized almost from the start of the Internet. Initially, a list of the names and network addresses of all computer systems was maintained in a central file, known as the hosts file. System administrators needed the discipline to regularly pick up the latest version. This method of working was no longer practical once the Internet starting rapidly expanding. System administrators needed to pick up an increasingly large file increasingly often. Also, the whole Internet was dependent on a single central authority who made changes. This authority also had no way of verifying...
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...and Maintaining the DHCP and DNS Server Roles Unit 2 Jovanny Avelino Client-Server II NT1330 Professor Arthur VIII Due: 3/21/2016 DHCP: DHCP is a standard protocol that make TCP/IP network configuration much easier for the administrator by dynamically assigning IP addressing and providing additional configuration information to DHCP clients automatically. DHCP configuration information can centrally manage all information can stored in one single location. Because DHCP is dynamically host configuration can eliminate the prose of manually configured all client IP address. Other benefit of DHCP is the opportunity of set up the subnet mask, default gateway and the DNS IP address. And give the flexibility of change IP address when is need it. The DHCP server have different ways to communicate with the client: * DHCPDISCOVER: is when the client send a broadcast to find a DHCP server. * DHCPOFFER: soon and he server find the client than the server respond, and send a offer. * DHCPREQUEST: is when the client respond to the offered from the DHCP server. * DHCPDECLIEN: mean that the client declined the DHCP server offered. * DHCPACK: is the way the DHCP server confirm the IP address and configuration parameters. * DHCPRELEASE: is the way the client cancel the IP address lease. * DHCPINFORM: is a message send by the client asking for additional configuration parameters, also use for detect unauthorized DHCP servers. Using those terminology the...
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...Batch Date : ________________________ Windows Server 2008 - Network Administration INDEX Sr. No. 1 Topic Dynamic Host Configuration Protocol (DHCP) Lab – 1: Installing DHCP Service Lab – 2: Creating a Scope Lab – 3: Creating DHCP Reservations Lab – 4: DHCP Server Backup and Restore Page No. 5 6 12 20 22 2 Domain Naming System (DNS) Lab – 1: Installing DNS Service Lab – 2: Creating Standard Primary Forward Lookup Zones Lab – 3: Creating Standard Primary Reverse Lookup Zones Lab – 4: Creating Secondary Zone Lab – 5: Creating Stub Zone Lab – 6: Creating Active Directory Integrated Primary zone Lab – 7: Conditional Forwarders Lab – 8: Forwarders Lab – 9& 10: Root Hints and Cache Server 24 25 27 33 38 42 44 47 48 49 3 Internet Information Services (IIS)- Web Server Lab – 1: Installing Internet Information Service - Web Server Lab – 2: Creating a Website Lab – 3: Configuring Redirection of Websites Lab – 4: Creating Virtual Directory Lab – 5: Changing the Website IP address or Port no Lab – 6: Creating Self-Signed Certificate for HTTPS Website Lab – 7: Creating a HTTPS Web Site 50 51 54 62 64 67 68 71 4 Internet Information Services (IIS)- Ftp Server Lab – 1: Installing Internet Information Service - FTP Server Lab – 2: Creating Do not Isolate User FTP Site Lab – 3: Creating Isolate User FTP Site Lab – 4: Creating Isolate User using Active Directory FTP Site 84 85 86 90 96 2 Windows Server 2008 - Network Administration 5 Routing ...
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...Abstract The expansion of the organization has allowed the IT department to design a network that will allow each office to share the same Internet Domain Name while still being located in separate offices. The organization currently own 25 servers and they expect to have to purchase up to thirty more to accommodate the new branch office. The design will allow for providing service to 5000 users with the thought of future growth being applied to the new network design. It has been suggested that certain resources are to be centralized which would help to reduce costs. With all of this in mind, the team came up with the necessary design while trying to keep costs down to a minimum. Quantity of Connectivity Equipment In order to successfully link all of the new branches there will be several connectivity devices that are required. The design for the organization will need to include seven new branch offices in five states; each branch office will consist of five floors each. This expansion of the company will require the company to purchase several new hardware connectivity devices in order to ensure that the expansion is successful. In order to do this I would recommend that each branch is equipped with five switches, one for each floor. This will require thirty-five switches total for all of the branches. Each floor will be set up as a small network with permissions to connect to each of the other floors in the branch. In addition to the switches...
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...starting the next task. To command the computer to wait until the program finishes, the start command used with the /wait switch or /w for short is used. For example to install a DNS Server role the command line input would be start /w ocsetup DNS-Server-Core-Role. 2. To remove a Server role the switch /uninstall is used. The switch is typed at the end of a command line input of the start, /w, ocsetup and then name of the role which is to be removed. For an example, if say the Server role of DHCP was needed to be uninstalled the command line input would be start /w ocsetup DHCPServerCore /uninstall. 3. To start and configure the DHCP Server role once it has been installed two commands will be needed. To configure the service the command to input would be sc config dhcpserver start= auto. This command will bring up the ChangeServiceConfig function for the DHCP Server role. To start the DHCP Server role the command line input would be net start dhcpserver. 4. To configure a DNS zone once a DNS Server role has been installed the command line input to use is dnscmd. The dnscmd command is used in conjunction with the / command followed by the DNS configuration that is to be changed. For example if the DNS server cache need to be cleared the command line input would be dnscmd...
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...a virtualized environment. The company expects this system to reduce network traffic and improve throughput between virtual servers and desktop clients. The current environment of Western Dynamics has physical machines for the Dynamic Host Control Protocol (DHCP), Domain Name Services (DNS), and Active Directory. They have recently purchased a new Quad Core computer with two Network Interface Cards (NIC) and 8 GB of RAM. This hardware should be capable of meeting the requirements necessary to run all three servers in one box. This is how the network currently looks, and how the proposed network will look like. Current network Router Router AD Server AD Server DNS Server DNS Server DHCP Server DHCP Server Switch Switch Printer Printer Printer Printer Switch Switch Switch Switch Group of 100 workstations Group of 100 workstations Group of 75 workstations Group of 75 workstations Virtualized Virtualized Proposed network Router Router DHCP DNS AD Server DHCP DNS AD Server Switch Switch Printer Printer Printer Printer Switch Switch Switch Switch Group of 100 workstations Group of 100 workstations Group of 75 workstations Group of 75 workstations DHCP 10.0.1.2 DHCP RANGES: 10.0.75.1-10.0.75.126 10.0.100.0-10.0.100.126 DNS 10.0.1.3 AD 10.0.1.4 OS: Windows Server 2008 10.0.1.1 DHCP 10.0.1.2 DHCP RANGES: 10.0.75.1-10.0.75.126...
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...1.WHAT IS THE PURPOSE OF THE GLOBAL NAMES ZONE IN WINDOWS SERVER 2008 DNS SERVERS? A: "GNZ is intended to aid the retirement of WINS, and it's worth noting that it is not a replacement for WINS. GNZ is not intended to support the single-label name resolution of records that are dynamically registered in WINS, records which typically are not managed by IT administrators. Support for these dynamically registered records is not scalable, especially for larger customers with multiple domains and/or forests. In GNZ, after the creation and enabling of the GlobalNames zone, the administrators must manually create, add, edit and, if required - delete, name records from that zone. GNZ does not support dynamic updates." Read more: http://wiki.answers.com/Q/What_is_the_purpose_of_the_Global_Names_Zone_in_Windows_Server_2008_DNS_servers#ixzz1kzD5eDgb EXPLAIN THE MODIFICATIONS NECESSARY TO DNS FOR ACCOMMODATING READ ONLY DOMAIN CONTROLLERS. HOW IS THIS DIFFERENT FROM THE WAYS DNS HANDLES ORDINARY DOMAIN CONTROLLERS? "Because the DNS server that runs on an RODC cannot directly register client updates, it has to refer the client to a DNS server that hosts a primary or Active Directory-integrated copy of the zone file. This server is sometimes referred to as a "writable DNS server." When a client presents a Find Authoritative Query, which is the precursor to an update request, the DNS server on the RODC uses the domain controller Locator to find domain controllers in the closest site...
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...terms from this lesson. 1. The network load balancing method that assigns multiple IP addresses to a single host name is called ____dns round robin______. 2. The application high availability method that uses redundant servers with only one active at any time is called a __failover cluster________. 3. The Windows Server 2008 feature that enables end users to store copies of server-based documents on a local drive is called _offline files_________. 4. The servers in a network load balancing cluster continually exchange status messages called ________heartbeats__. 5. Windows Server 2008 servers can maintain multiple versions of a volume’s files using a feature called __shadow copies________. 6. The process by which servers are automatically added to and removed from a network load balancing cluster is called __convergance________. 7. A failover cluster stores its configuration database on a ___witness disk_______. 8. The role service that enables disconnected Terminal Services clients to reconnect to the same server is called _____TS session broker_____. 9. The application high availability mechanism that uses redundant servers, with all running simultaneously, is called ___network load balancing_______. 10. The Windows Server 2008 feature that enables a computer to verify an application before launching it is called _windows installer 4.0_________. Multiple Choice: Select one or more correct answers for each of the following questions. ...
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...DNS in Small Networks Step-by-Step Guide Microsoft Corporation Published: January 2008 Author: Jim Groves Editor: Jim Becker Abstract This guide helps you implement Domain Name System (DNS) on the Windows Server® 2008 operating system in a small network. Windows Server 2008 uses DNS to translate computer names to network addresses. An Active Directory® domain controller can act as a DNS server that registers the names and addresses of computers in the domain and then provides the network address of a member computer when the domain controller receives a query with the name of the computer. This guide explains how to set up DNS on a simple network that consists of a single domain. Contents Step-by-Step Guide for DNS in Small Networks 5 Planning DNS 6 Understanding the DNS namespace 6 Designing a DNS namespace 8 Creating an Internet DNS domain name 9 Creating internal DNS domain names 9 Creating DNS computer names 9 Installing and Configuring AD DS and DNS 11 Configuring Client Settings 19 Advanced DNS Configuration 27 Adding resource records 28 Automatically removing outdated resource records 29 Troubleshooting DNS 31 Step-by-Step Guide for DNS in Small Networks Domain Name System (DNS) is a system for naming computers and network services that maps those names to network addresses and organizes them into a hierarchy of domains. DNS naming is used on TCP/IP networks, such as the Internet and most corporate networks, to locate computers and services...
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...post-installation tasks, including the installation of roles with Server Manager and how to create batch files to manage administrative tasks. Assignment Requirements Evaluate the following scenario: After careful consideration, it was decided by the corporate IT team that in order to increase security and lower your attack surface, Windows 2008 Server Core would be installed on a group of your servers. However, a few roles need to be installed on the server, and your Senior Administrator is not familiar with installing roles on a Server Core machine. Use notepad to create a batch file to install the following roles: DHCP, DNS, Print Services and Hyper-V. Questions: 1. What does the /w switch do? Why is it used? 2. What switch is used to remove a role? 3. What is the command to start the DHCP Server service? 4. What command is used to configure a DNS zone? These commands will be entered in a WordPad. Once entered the file will be saved has roles.bat. double clicking on the file will run it automatically /w ocsetup DHCPServerCore /w ocsetup DNS-Server-Core-Role /w ocsetup Microsoft-Hyper-V /w ocsetup Printing-ServerCore-Role 1. What does the /w switch do? Why is it used? Using /w prevents the command prompt from returning until the installation completes. Without /w, there is no indication that the installation completed. 2. What switch is used to remove a role? ServerManagerCmd.exe -remove “name of role being removed” -restart The -restart switch...
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...the purpose of the Global Names Zone in Windows Server 2008 DNS servers? Explain modifications necessary to DNS for accommodating Read Only Domain Controllers (RDOC). How is this different from the way DNS handles ordinary domain controllers? Explain background zone loading? How does background zone loading promote efficiency in name resolution? Explain how DNS has been modified to add support for IPv6. How can DNS distinguish between IPv4 and IPv6 host in determining which resource record to return? Bibliography Windows Server 2008 has deployed many new and updated items one in particular is its DNS systems. The purpose of this paper is to better understand these modifications. Along with a better understanding how it differentiates between IPv4 and the new up and coming IPv6. We will use many sources to confirm and relate the information as needed. Global Name Zones provide the user to have static records. It does not support dynamic updates (Petri 2009), and it was to aid the old WINS system that has been around since Windows NT. (Petri 2009) It is more commonly referred as the GNZ in the IT world of acronyms. If the records are not maintained by IT administrators it is not worth having them be GNZ’s. It helps you communicate with trusted people outside of your zone. (Ruest 2008) There is a modification that must be done in order to use Read Only Domain Controllers (RDOC). They hold a version of the DNS in remote offices for companies that cannot be over...
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...Active Directory Design Guide Thursday, 25 February 2010 Version 2.0.0.0 Baseline Prepared by Microsoft Prepared by Microsoft Copyright This document and/or software (“this Content”) has been created in partnership with the National Health Service (NHS) in England. Intellectual Property Rights to this Content are jointly owned by Microsoft and the NHS in England, although both Microsoft and the NHS are entitled to independently exercise their rights of ownership. Microsoft acknowledges the contribution of the NHS in England through their Common User Interface programme to this Content. Readers are referred to www.cui.nhs.uk for further information on the NHS CUI Programme. All trademarks are the property of their respective companies. Microsoft and Windows are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries. © Microsoft Corporation 2010. All rights reserved. Disclaimer At the time of writing this document, Web sites are referenced using active hyperlinks to the correct Web page. Due to the dynamic nature of Web sites, in time, these links may become invalid. Microsoft is not responsible for the content of external Internet sites. Page ii Active Directory – Design Guide Prepared by Microsoft, Version 2.0.0.0 Last modified on 26 February 2010 Prepared by Microsoft TABLE OF CONTENTS 1 2 Executive Summary ..............................................................................................
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