...period. The PC will not make contact to the DCHP server again until halfway through the lease time. Since you changed the scope on Friday, the PCs that just renewed a lease will not contact the DCHP until Tuesday. You may force the PCs to grab new IP addresses by opening a DOS prompt, and do an “ipconfig/release” and an “ipconfig/renew” on each computer. If the problem still isn’t solved, check your scope configuration, and make sure the network/subnet mask match what is configured on the router that is connected to this local LAN. Terra Klaase IT Admin PART B Dear Junior Admin, Active Directory integrated zones must be hosted by Domain Controllers (DCs), and all Active Directory integrated zones are primary zones. Given this, we’re really talking about where to place Domain Controllers servicing the additional role of DNS server. Determining where to place DCs/DNS servers isn’t always straight-forward. However, as a rule of thumb, I take the view that any branch location that’s going to be utilize Active Directory services (authentication, file services, etc.), benefits from having a local DC and domain-integrated DNS services. You might already know much of this, so bear with me… When deciding where to place DC/DNS Servers, keep the following things in mind: * Domain members rely heavily on DNS services to locate domain resources. For example, when a domain-joined computer boots, it queries domain Service Locator records (SRV) in DNS to locate a Domain Controller against which...
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...Configuration Protocol) and DNS (Domain Name System) are both servers that work best together and when clients need multiple systems synchronized to one central location. DNS servers provide domain names and network resources. It associates TCP/IP addresses assigned to clients with domain names. It is designed for query lookups and hold distributive zones. This means that all computers may operate and share address pools in the event one fails. Another benefit of using DHCP servers with DNS servers is loadsharing. The DNS server can rotate the order of distribution of multiple addresses. Although there are benefits to using DHCP and DNS servers as a pair, there are downfalls as well. In order for the clients systems to maintain up-to-date databases, the IT tech must set the systems to synchronize updates and mapping of IP addresses automatically. While one may program the system to manually update, automatic dynamic updates would better serve the clients needing to operate several computers using one server. DHCP requires the use of DNS to keep names and address mapping information synchronized. Without synchronization, the DHCP doesn’t update or communicate changes with DNS changes. The IT technician must assist clients in registering the DHCP server with the DNS server. Another pitfall to using DHCP and DNS servers together is the OS. Older OS may delay synchronization. For example, The servers cannot interact dynamically when the DCHP client configures change. ...
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...Objectives and Learning Outcomes In this assignment, you will explain the function of DHCP and DNS. Assignment Requirements Write a 1-page report summarizing IT-management overhead in reference to DHCP and DNS. In your report, address IT-management overhead in reference to DNS and DHCP, with the following question in mind: 1. How many hosts does it take to justify the time and effort to setup a centrally managed solution for name resolution and address allocation? (In other words, is it worth setting up DHCP for two computers? 5? 25?) Consider both MS Windows Server DNS and DHCP as well as other, special use devices where DNS or DHCP may be built-in. 2. At what point should DNS or DHCP be considered a priority and require some level of redundancy? 3. Should servers use DHCP? Submission Requirements Maximum 1 page, Microsoft Word, double-spaced, 12 pt. font 1. How many hosts does it take to justify the time and effort to setup a centrally managed solution for name resolution and address allocation? (In other words, is it worth setting up DHCP for two computers? 5? 25?) Consider both MS Windows Server DNS and DHCP as well as other, special use devices where DNS or DHCP may be built-in. I believe one host is enough. In fact, if the host has a functioning network interface which is connected to a network chances are it is managed by DHCP uses DNS for name resolution. Although most end users don’t know or understand the how their computer...
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...Assignment 1 DNS and DHCP can make a system administrator's life simpler and easier. Fortunately, the protocols are so flexible that they can be implemented either together or separately depending on the size and configuration of your enterprise network. So whether you have 5 or 5000 computers in your network this would be justifiable action because of the following reasons: Looking up IP addresses can be a nightmare if you have more than a couple to remember If you have network-enabled printers, unless you lock the address, it will change every time you disconnect the printer from the network. This can be extremely frustrating for the users. If you have more than a small number of machines, then you should be looking at implementing DNS in addition to DCHP. There are a number of ways to implement DNS in-house depending on the specifics of the company computer systems architecture. The choice depends on the available skills in your shop and the network configuration. One nice thing about implementing DNS is that once it is set up, it pretty much runs without much need for human intervention. That means that if you hire a consultant to do the initial configuration, you only need to maintain the service with a minimum of skills and resources. I found two choices for configuring the service using Microsoft Active Directory or (the newest possibility) purchasing a DNS/DHCP service appliance. Whatever implementation you choose, once it is configured, the best DNS/DHCP server reliably...
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...Mr. Ajero Assignment 1 September 14, 2015 DNS – Domain Name System DNS is a hierarchical representation of all the IT devices and their sub-domains in a (company) network. So, in case you see an address like mail.subdomain.company.com, you can easily recognize the name of the system (mail), name of the sub-domain (sub-domain), name of the company (company) and the name of the primary domain (.com). DHCP – Dynamic Host Control Protocol A DHCP server automatically assigns the IP addresses for a device. Any device, before communicating with any other device in the network needs an IP address. These IP addresses are given to the network devices dynamically by a DHCP server (IP addresses ought to be within a certain range and the range is already specified). The IP addresses assigned this way are not permanent – they are actually leased for a certain amount of time to the devices (till they log-out of the network, for example). I believe that two hosts should be sufficient. Using a DHCP Relay Agent would greatly reduce the time necessary for me to set up the name allocation and resolution. If I were to do this manually on a static IP Address, I would have to put a stop to it at 25 machines as it would waste valuable time with trying to get to the other pieces of equipment my client owns. Regardless of if I was getting paid by the hour, I would need extra time for future maintenance and upgrades References DNS and DCHP explanation/definition:...
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...Var…………………………………………………………………………………7 Networking Report…………………………………………………………………………11 Network Configuration…………………………………………………………………..11 Server Based Networking………………………………………………………..12 Cloud/ Internet…………………………………………………………………...12 Router…………………………………………………………………………….12 Firewall…………………………………………………………………………..13 Server…………………………………………………………………………….13 Ethernet…………………………………………………………………………..13 Printers…………………………………………………………………………...14 Necessary Networking Components……………………………………………………..14 Modem…………………………………………………………………………...14 Network Switch………………………………………………………………….15 Print Server………………………………………………………………………16 DHCP Server…………………………………………………………………….17 LDAP Server…………………………………………………………………….17 WAP……………………………………………………………………………...17 DNS Server………………………………………………………………………18 Database Report……………………………………………….…………………………....19 Database Examination…………………………………………………………………...19 Database Modification…………………………………………………………………...20 Database Query and Screenshots………………………………………………………...21 Information Assurance Presentation (PPT)…………………………………..23 Web Technology Tutorials…………………………………………………….. (24-28) Tutorial 1: Setting up a Homepage in a Brower……………………………………………...24 Tutorial 2: Enabling and Disabling of Cookies……………………………………….……...24 Conclusion…………………………………………………………………………………..29...
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...1. What is the primary means of identifying network devices and services in a Windows Server 2008 network? DNS 2. The process of obtaining an IP address for a computer name is called… Name Resolution 3. A starting address of 192.0.0.0 and an ending address of 233.255.255.255 is a member of which network class? Class C 4. IPv4 addresses are commonly represented by using what type of notation? Dotted-Decimal 5. DHCP is based heavily on what protocol? BOOTP 6. If you have an IPv4 address of 194.34.76.34 with a subnet mask of 255.255.255.0, what is the network number? 194.34.76.0 7. You have an IPv4 address of 207.34.65.231 with a subnet mask of 255.255.240.0. What is the CIDR notation? /20 8. Which technology is used to translate multiple private addresses to a public address? NAT 9. How many bits does a IPv6 address have? 128 10. TRUE > DHCP can dynamically allocate an IP address from a pool of addresses and then reclaim it when it is no longer needed. 11. Which Windows installation option in Windows Server 2008 provides a stripped-down version of the OS when you select it? Server Core 12. Which role is NOT available in a Server Core installation? Application Server 13. Hyper-V is available on which version of Server Core? X64 14. Which feature is NOT available in a Server Core installation? Message Queuing 15. Which new tool provides capabilities so you can evaluate the hardware on...
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...Window Server 2008-DCHP Server Role This paper is designed to explain the equipment, installation, and configurations of the DHCP Server Role for Windows Server 2008. In order to fully understand how DHCP Server Roles operate within the network, you first have to know why, when, and where the DHCP Server Role will be used. What is a server role? A set of software programs that when installed and configured properly, allows a computer to perform specialized functions for numerous clients or other computers within a network. They describe the main function, or use of a computer. A certain computer can be created to perform a clear-cut function that’s greatly used in an enterprise, or perform many roles if it’s not used too much. They provide aid to client’s throughout an organization, that’s directed by other computers, like websites, printers, or files....
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...being sent and breaks it down into small units called packets which are transferred over to the network. The IP layer is most concerned about transmission. By using unique IP addresses assign to every active receiver on the network. TCP/IP combines the OSI application and the presentation layers and supports flexibility in hostnames and also handles Dns errors and mapping domain names. The OSI also known as the reference model it provides a method of standards and protocols which can be compared to assist in other connectivity. Most developers today now use a reference model/OSI Model learn how transmissions are framed and created to translate to other systems. I it begins with the physical layer of the transmitting system and travels through the other layers to the application layer. Once the data reaches the application layer it is processed by the receiving system. In some cases, the data will move through the layers in reverse to the physical layer of the receiving computer. The physical layer holds the computers NIC card that allows the computer access to the internet. The Data Link connects your local routers to a DCHP. The Network layer has the IP address and can connect to the internet with protocol. A transport layer creates a NetBIOS session to the session layer....
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...1. Why Windows Server 2008 comes in different versions? What is the significance of each version? WS2K8 comes in several different editions. Each edition is specifically designed for different amounts of server activity. Standard and Enterprise have most of the basic needs as well as all of the new features in WS2K8 but there are a total of 10 editions of WS2K8. What one business needs may not be what another needs so that is why the software comes in a variety of versions. 2. What are the new features or enhancements made to windows Server 2008? How is Windows Server 2008 different from Windows Server 2003? Windows Server 2008 is the largest upgrade to the Windows server line ever. WS2K8 is architected to be functionally componentized. This creates a more secure and reliable system because communication between components is kept to a minimum. WS2K8 has many new features that make major upgrades to the entire server market. The greatest improvement is that WS2K8 is very secure. This alone would be reason enough to upgrade. Server Core, Server Manager, RODC and many others are just some of the key features of WS2K8 that make it superior version to its predecessor. 3. Why is 64-bit architecture an advantage? The terms 64 and 32 bit refer to a way a CPU processes information. 64 bit based versions are faster, manage memory better, and are more secure than 32 bit versions. 64 bit versions have more memory support then 32 bit versions. Programs that are...
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...Table of Contents Section 1: Target Organization 3 My Organization: 3 Section 2: Network Architecture 5 Section 3: Network Model 8 Section 4: Network Protocols 9 Section 5: Network Security 10 Section 6: Network Management 11 Section 7: Network+ Prep Toolkit 12 IP 2 Section 2 16 References: 17 Section 1: Target Organization My Organization: “The organization I am choosing is entirely made up. I’m going to call it Kritical Komputer Repair. (KKR) This isn’t just a small little computer repair shop we are talking about this is Kritical. Kritical has somewhere close to 100 employees; each one of these employee has to have a desktop that is capable of dual booting Linux and Windows 7 Enterprise. The company will have an in house server for file sharing and system maintenance. This company will have an outbound server as well that can speak with the in house server(s) in order to complete orders, and keep track of customer information. Both of these servers run Linux as well. I made this choice for a few different reasons it’s creative, it gives me a chance to learn by creating something new, and it gives me the flexibility that I need to succeed in this course. Kritical Computer was founded in 1991. Kritical Computer specializes in, computerization projects, security policies, consultation and selection of solutions, delivery of hardware and operating systems, installation and commissioning of computer networks, systems integration, implementation, training...
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...CN LAB REPORT Dept. of ISE, BVBCET Department of Information Science & Engineering, BVBCET Hubballi COMPUTER NETWORKING LAB Mahantesh Patil 2BV14IS410 Mahantesh Patil 2BV14IS410 CN LAB REPORT Dept. of ISE, BVBCET LAB-01 List the hardware components 1) Difference between switch and Hub: 2) Difference between SWITCH and ROUTER 3) Differences between Router and Gateway 4) What is the Difference between Subnetting and Supernetting? HARDWARE COMPONENTS Cables: 1|Page Mahantesh Patil 2BV14IS410 CN LAB REPORT Dept. of ISE, BVBCET Cables: which are used to connect one or more devices to computer or network. Different types of network cables are available market they are Coaxial cable, Optical fiber cable, Twisted pair cable. RJ-45 The most common UTP connector is RJ45 (RJ stands for registered Jack), as shown in Figure. The RJ45 is a keyed connector, meaning the connector, meaning the connector can be inserted in only one way. 2|Page Mahantesh Patil 2BV14IS410 CN LAB REPORT Dept. of ISE, BVBCET SWITCHES: Switches contain many ports to connect different network segments. They are similar to hubs, but offer greater performance. When a network contains a large number of devices, switches are needed instead of hubs to make sure the communications between devices does not slow down. Contrary to hubs, switches send the data it receives only to specific ports. NIC(NETWORK INTERFACE CARD) A network card, network...
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...Table of Contents C apstone Report Summary (Introduction) .......................................................................... 1 Goals and Objectives .......................................................................................................... 8 Project Timeline ................................................................................................................. 15 Project Development ......................................................................................................... 19 R eferences ........................................................................................................................ 23 Appendix 1: Competency Matrix ....................................................................................... 24 Appendix 2: Installing Microsoft Windows Server 2008 ................................................... 26 Appendix 3: Conf iguring Domain Controller using DCPROMO ....................................... 36 Appendix 4: Installing Dynamic Host Configuration Protocol (DHCP) ............................ 49 Appendix 5: Inst alling Microsoft Windows Deployment Services .................................... 56 Appendix 6: Configuring Microsoft Windows Deployment Services ................................ 60 Appendix 7: Imaging client machine ................................................................................. 67 Page 1 Capstone Report Summary (Introduction) My Capstone Project is about...
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...Table of Contents Beginning Red Hat Linux 9 ...............................................................................................................................1 Introduction.........................................................................................................................................................4 Who Is This Book For?...........................................................................................................................4 What You Need to Use This Book.........................................................................................................4 What Is Linux? ........................................................................................................................................5 Linus Torvalds and the Birth of Linux.............................................................................................5 Why Choose Linux?.........................................................................................................................6 What Is Red Hat Linux 9?................................................................................................................7 What Is Covered in This Book?..............................................................................................................8 Conventions in This Book......................................................................................................................9 Customer Support...............
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...jurisdictions. All other marks and names mentioned herein may be trademarks of their respective companies. VMware, Inc. 3401 Hillview Ave. Palo Alto, CA 94304 www.vmware.com 2 VMware, Inc. Contents About vSphere Upgrade Updated Information 7 5 1 About the Upgrade Process 9 2 How vSphere 5.0 Differs from vSphere 4.x 11 3 System Requirements 13 ESXi Hardware Requirements 13 ESXi Support for 64-Bit Guest Operating Systems 16 vCenter Server and vSphere Client Hardware Requirements 16 vCenter Server Software Requirements 19 vSphere Client and vSphere Web Client Software Requirements 20 Providing Sufficient Space for System Logging 20 Required Ports for vCenter Server 21 Conflict Between vCenter Server and IIS for Port 80 22 DNS Requirements for vSphere 22 Supported Remote Management Server Models and Minimum Firmware Versions 23 Update Manager Hardware Requirements 23 4 Upgrading to vCenter...
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