Free Essay

Dns Scenario

In: Computers and Technology

Submitted By awhitlock
Words 296
Pages 2
Aaron Whitlock
NT1330
Client Server II
Week 2 Essay
.Dear Junior Admin,
Basically you want to determine where you will locate the Domain controller with the DNS services. The best location is going to be at the branches that need to utilize active directory services on a regular basis. These locations will benefit the most from having access to a domain controller with DNS services.
It is important to note that Domain members will consistently utilize the DNS services to access domain resources. When the computer boots it will try to find a Domain controller to authenticate using the DNS serves. If there is not an instance of DNS created within the system then this process will traverse the site link. The site link could be very slow causing a longer boot time for that workstation and decreased productivity. Also if the site links cease to function on a network that doesn’t have an instance of DNS then the users will not be able to access the internet at all. For the small branch office with only 5 computers the authentication credentials can be accessed from the cached credentials. You will also need to ensure that non-domain DNS servers are available if the site link goes down. This is a solution you could employ if you did not want to set-up a DNS server at the smaller branch. However it would help to create a stable network by having one there as well as provide a backup in case of site link failure. The larger location will definitely need to have its on domain controller and DNS system set-up to ensue that the network will function properly. You can use active directory zones for both locations as well.
Regards,
IT Admin
Aaron Whitlock

Similar Documents

Free Essay

Dns Senario

...DNS scenario Dear junior IT, First off thank you for contacting my with your questions ill will try to help you to the best of my ability. So you are working at two branch offices and have been tasked with where to place Active-Directory Integrated DNS Servers and what type to use. Before I answer these questions I will ask you one myself. Do you know what an ADI DNS is and the different type of zones there are? If not I will enclose some details two my question. Secondly you say One of the branch offices is very small (maybe 5 users) and has very slow network connectivity. Do you need a DNS Server and, if so, which type of zone should it host? I would not recommend placing an ADI in your group because it isn’t big enough also it will slow the network down more than it already is. Finally you also said the second branch office is much larger (about 30 users) and has better network connectivity. Does this office need a DNS Server and, if so, what type of zone would I recommend? I would say yes you need a dns sever for this group and I would set it with the primary zone the DNS server is the primary source for information about this zone, and it stores the master copy of zone data in a local file or in AD DS. Thank you, IT administrator Active Directory–integrated DNS enables Active Directory storage and replication of DNS zone databases. Windows 2008 DNS server, the DNS server that is included with Windows 2008 Server, accommodates......

Words: 644 - Pages: 3

Premium Essay

Dns & Dhcp

...Javier Dominguez DNS & DHCP DNS allows people to use meaningful names, such as http://www.yahoo.com.proxy.itt-tech.edu, to find Internet-based resources. In this way, DNS has allowed users from a wide range of educational backgrounds to makes use of the Internet. DNS eliminated the need to manually remember IP addresses and replaced that system with human-readable names instead; DNS was invented to solve the logistical problems that arose because too many hosts were on the Internet to be able to keep track of using a manual list of addresses. In other words DNS function is to translate names to IP addresses and vice versa, that way instead of remembering a long IP address you can just type a name that is easy to remember. http://library.books24x7.com.proxy.itt-tech.edu/assetviewer.aspx?bookid=12254&chunkid=309282908&rowid=24 With the increasing number and different types of devices attaching to the network, managing IP addresses efficiently and accurately introduces many challenges for network operators of large-scale networks, including service providers and enterprises. Both Domain Name System (DNS) and Dynamic Host Configuration Protocol (DHCP) are mission-critical capabilities that need to be able to scale, and many service providers have created dynamic service delivery based on DNS to achieve service quality and deliver advantages. However, if DNS fails, then the Internet fails. Assigning a unique address to every device connecting to the network has...

Words: 443 - Pages: 2

Premium Essay

Dns and Dhcp

...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......

Words: 274 - Pages: 2

Free Essay

Dns Internet

...McCormick School of Engineering and Applied Science, and his team found that one cause of slow web performance is a growing trend toward public Domain Name Systems (DNS), a form of database that translates Internet domain and host names into Internet Protocol (IP) addresses. DNS services play a vital role in the Internet: every time a user visits a website, chats with friends, or sends email, his computer performs DNS look-ups before setting up a connection. Complex web pages often require multiple DNS look-ups before they start loading, so users' computers may perform hundreds of DNS look-ups a day. Most users are unaware of DNS, since Internet Service Providers (ISP) typically offer the service transparently. Over the last few years, companies such as Google, OpenDNS, and Norton DNS have begun offering "public" DNS services. While "private" DNS services, such as those offered by ISPs, may be misconfigured, respond slowly to queries, and go down more often, public DNS services offer increased security and privacy, and quicker resolution time. The arrangement is also beneficial for public DNS providers, who gain access to information about users' web habits. Bustamante and his team found that while using public DNS services may provide many benefits, users' web performance can suffer due to the hidden interaction of DNS with Content Delivery Networks (CDNs), another useful and equally transparent service in the web. CDNs help performance by offering exact replicas of......

Words: 490 - Pages: 2

Free Essay

Dns Server

...used for forwarding DNS queries for external DNS names to DNS servers outside the network and conditional forwarders can be used to forward queries according to specific domain names. When we designate a DNS server as a forwarder, then that forwarder is responsible for handling external traffic. Which limits DNS server’s exposure to the internet. In less time, a forwarder resolves a large number of external DNS queries using cached data built by it. This decrease the response time of DNS server. Server which doesn’t have forwarder setup. That server can use root hints to resolve queries. Conditional forwarder:- Conditional forwarders are using to forward queries according to domain names by DNS server. A DNS servers can be configure to forward queries to different forwarders according to the specific domain names that are contained in the queries is better than having a DNS server forward all queries it cannot resolve locally to a forwarder. When we configure the DNS server in one internal namespace to forward all queries to the authoritative DNS server in a second internal namespace, Conditional forwarders enable name resolution between the two namespaces without performing recursion on the DNS namespace of internet. This performance enhances name resolution which also avoids DNS servers performing recursion to our internal root for different namespaces within the network. How to configure Forwarder:- There are two ways to configure forwarder in DNS server. 1. A)......

Words: 390 - Pages: 2

Free Essay

Nt1330 Unit 2. Exercise 1. Dns Scenario

...Aaron Battaglia NT1330 UNIT 2. EXERCISE 1. DNS SCENARIO It is not required to put a DNS server in such a small location for only five users and snail like network connectivity doesn’t justify the amount of money it would cost to install a server(s) in that area. One exception would be if there is a great amount of file sharing, or other information that would need to be accessed daily by other spots on the network. This sometimes but rarely happens but we could have a situation where we put it in the in the server but we set it up as a secondary or Active Directory Integrated zone type. I recommend installing the servers in the location where you have 30 users and fast internet connection. You could do this also, try storing all the files from either location in the bigger office, and in the smaller location you could remote connect through Virtual Private Network. When we do this all the information from the smaller sight is stored off site. The sight with five users can be run with a cheap router and the server that has thirty users at the office will be set up as the primary zone; since this is utilizing the fast internet connection and has more users this is our MAIN BASE which you can call home. =) If you were to run Domain Name System on domain controllers there are Active Directory Integrated zones and Active Directory Integrated zones. In classical Domain Name Systems the zone data is stored in text files which sit on the Hard Drive; which of course is......

Words: 428 - Pages: 2

Free Essay

Dns and Dchp

...DNS and DHCP DNS is short for Domain Name System servers, and they provide name resolution for network clients. Among other things, DNS manages information that connects a computer's fully qualified domain name or FQDN to its assigned IP address. Sometimes, DNS links them to multiple addresses.On the other hand, DHCP provides a powerful mechanism for automatically configuring client IP addresses. At first, DHCP did not notify the DNS service to update the DNS records on the client. They just updated the client name to an IP address, and IP address to name mappings maintained by a DNS server. Without a way for DHCP to interact with DNS, the information maintained by DNS for a DHCP client may be incorrect. For example, a client may acquire its IP address from a DHCP server, but the DNS records would not reflect the IP address acquired nor provide a mapping from the new IP address to the computer name (FQDN). So in my opinion the number of computers you are setting up is irrelevant. The DHCP servers are kinda like the planning and zoning dept. When you build a house they give it an address. The DHCP server is in charge of giving out addresses to your computer. Unlike the zoning dept., your IP is leased from the DHCP server. That is because if your computer decides it wants to move to a different section of town, say for example, the landfill your DHCP server will give some other more worthy computer that address eventually....

Words: 255 - Pages: 2

Premium Essay

Unit 2 Exercise 1 Dns Scenario

...It is not necessary to put a DNS server in such a small location. 5 users and slow network connectivity does not justify the expense of installing Servers in that location. Unless there is a large amount of File sharing, or other data that needs to be accessed daily by other locations on the network. If that is the case then yes put in the server but configure it as a secondary or ADI zone type. I suggest putting the servers in the other location where you have 30 Users and good connectivity. You can also store all the files from both locations in the larger office, the smaller location can remote in via “VPN”. By doing this all the information from the smaller sight is stored off site. The smaller sight can be run with a smaller cheaper router. The server in the larger more utilized office should be set up as the Primary Zone since it is utilizing a better connection and has more users this is essentially HOMEBASE! If you run DNS on domain controllers, you have the opportunity to use something called Active Directory Integrated zones, or ADI zones. In classical DNS, the zone information is stored in text files that sit on the hard drive. Yes, they’re protected by NTFS, but you don’t have the ability to impose per-record security. You may also want to create an ADI zone; the zone information (and all the associated resource records) are imported into the AD database, NTDS.DIT. The zones and zone records become objects in AD. This has a variety of benefits (and potentially......

Words: 320 - Pages: 2

Premium Essay

Addressing Scenario

... In this Exercise, you will explain IP addres components, contrast classful and classless IP addressing, and explain the function of DNS and DHCP. Assignment Requirements Respond to the following scenario with design considerations and recommendations: You are a IT Administrator for a newly founded company and have been tasked with designing an IP addressing scheme and a plan for allocation and management of IP addresses. The company will currently have a single, physical location with approximately 145 hosts (computers, printers, etc.) IT plans should accommodate 50% growth within the next two years. At a minimum, address these specific questions, in addition to any other concerns/considerations. 1. What subnet range/s should be used 2. Should IP addresses be dynamically or statically assigned. 3. Should one or more network/subnets be used? 4. If DHCP is used, should a router,firewall or Windows Server be utilized and why? Respond in detail. justifying your recommendations. 1-2 pages I find that the IP address components as being the “core” of the IP addresses. Nothing would work without them. They are like the postal address of a home or office building. Every page you see on the internet has a (postal) IP address consisting of numbers such as 255.25.1.200.0. Each number is a component of that IP address. When IPv4 was introduced, only the first octet was used for the network number and the remaining three octets were used for the host number. This limited......

Words: 763 - Pages: 4

Premium Essay

Dns Scenario

...It is not necessary to put a DNS server in such a small location. 5 users and slow network connectivity does not justify the expense of installing Servers in that location. Unless there is a large amount of File sharing, or other data that needs to be accessed daily by other locations on the network. If that is the case then yes put in the server but configure it as a secondary or ADI zone type. I suggest putting the servers in the other location where you have 30 Users and good connectivity. You can also store all the files from both locations in the larger office, the smaller location can remote in via “VPN”. By doing this all the information from the smaller sight is stored off site. The smaller sight can be run with a smaller cheaper router. The server in the larger more utilized office should be set up as the Primary Zone since it is utilizing a better connection and has more users this is essentially HOMEBASE! If you run DNS on domain controllers, you have the opportunity to use something called Active Directory Integrated zones, or ADI zones. In classical DNS, the zone information is stored in text files that sit on the hard drive. Yes, they’re protected by NTFS, but you don’t have the ability to impose per-record security. You may also want to create an ADI zone; the zone information (and all the associated resource records) are imported into the AD database, NTDS.DIT. The zones and zone records become objects in AD. This has a variety of benefits (and potentially......

Words: 320 - Pages: 2

Premium Essay

Dns Terminology

...INTERNET PERFORMANCE. DELIVERED. EBOOK The Master List Of DNS Terminology published: 01/14/15 DNS: What It Is & Why It’s Important The Domain Name System or DNS is a distributed Internet database that maps human-readable names to IP addresses, allowing people to reach the correct website when entering a URL. For example, the domain name dyn.com translates to the IP address of 216.146.45.245. DNS speed and reliability are central to the performance and availability of your website and the success of your online business. Every visitor’s first interaction with your website begins with a series of DNS queries. Poor DNS performance can lead to subpar customer experiences and lost business. Some companies rely on free or low-cost DNS services provided by ISPs, hosting providers, or domain name registrars. However, many organizations turn to a company like Dyn for Managed DNS for several reasons, including: V Expertise & Support V Global Reach V Continuous Availability V High Scalability V Security V Resiliency Who We Are Dyn is a cloud-based Internet Performance company. Dyn helps companies monitor, control, and optimize online infrastructure for an exceptional end-user experience. Through a world-class network and unrivaled, objective intelligence into Internet conditions, Dyn ensures traffic gets delivered faster, safer, and more reliably than ever. Dyn is the leading Internet Performance provider to the most visited web......

Words: 2131 - Pages: 9

Free Essay

Dns Zone

...Unit 8 Assignment 1 DNS Zone File A Domain Name System (DNS) zone file is a text file that describes a DNS zone. A DNS zone is a subset, often a single domain, of the hierarchical domain name structure of the DNS. The zone file contains mappings between domain names and IP addresses and other resources, organized in the form of text representations of resource records (RR). A zone file may be either a DNS master file, authoritatively describing a zone, or it may be used to list the contents of a DNS cache. Resource records may occur in any order in a zone file. For formatting convenience, resource records may span several lines by enclosing in parentheses a set of parameters that spans several lines, but belongs to the same record. The file may contain comment text by preceding such text with a semicolon, either at the beginning of a line, or after the last field on any line, or on a blank line. Comments end at the end of a line. The zone file may contain any number of blank lines with or without comments. The zone file may also contain various directives that are marked with a keyword starting with the dollar sign character. The most notable is the $ORIGIN keyword, which specifies the starting point for the zone in the DNS hierarchy. If this keyword is omitted from a zone file, the origin is inferred by the server software from the reference to the zone file in its server configuration....

Words: 255 - Pages: 2

Free Essay

Dns Senario

...I am working at two branch offices and have been tasked with where to place the Active- Directory Integrated DNS Servers and what type to use. One of the branch offices is very small and (5 users) and has a very slow network connectivity. Do I need a DNS Server and, if so, which type of zone should it hosts? The second branch office is much larger (about 30 users) and has better network connectivity. Does this office need a DNS Server and, if so what type of zone would you recommend? Response: Dear IT Admin; I really appreciate the opportunity to assist you in regards to implementing Active Directory & DNS Servers in your “Windows” environment. Let me start by saying that without DNS your network will more than likely not function because clients will not be able to resolve names to (IP) addresses, also DNS enables network devices such as printers and computers to communicate on the internet or locate one another within the organizations local network. Based on the given scenario, you have made an excellent choice of configuring the “Active Directory Integrated Zones” because Active Directory has the following benefits: Fault Tolerance – Redundant copy of DNS zone information can be stored on multiple servers. Security – DACL can be modified by specified user groups. Zones are Multimaster – zones can be updated in more than one location. Efficient Replication – Zone transfers are replaced by more efficient Active Directory replication. Maintain use of secondary zones –...

Words: 320 - Pages: 2

Free Essay

Dns in Windows 2003 Server

...Introduction to DNS in Windows Server 2003 There are three scenarios in which your network needs DNS. • Firstly, to find Active Directory resources such as Global Catalog Servers and also Domain Controllers that authenticates Logon or Kerberos requests. • Secondly to locate pages on the internet, • Thirdly, mundane task for example, connecting to a printer share. DNS makes it possible for clients to access network resources using alphanumeric names rather than pure IP addresses. Unlike WINS, DNS is hierarchical, with advent of Windows 2000 DNS became dynamic DNS. In practical terms, it means that clients can update their own DNS Server records automatically, thus reducing the administrative load. The killer reason for implementing DNS is that Active Directory relies on DNS for finding Global Catalog, Kerberos and Logon Servers. Before you install DNS on a production network you need to answer a whole series of questions. For example Will your DNS name match our email domain? Who will be in charge of DNS, you or must you rely on a Unix department? One 'Litmus Test' for a difficult topic is the number of specialist terms a component uses. My rule is the more unusual words and acronyms, the more difficult the subject is to master. DNS passes this ' difficulty ' test with flying colours. For instance you need to understand, Namespace, Authoritative, Recursive, and Incremental to name just a few of the DNS keywords. As you learn about DNS Server watch out......

Words: 336 - Pages: 2

Premium Essay

Dns Server

...“Birch” DNS Server The Mail server will be using fedora as the OS. First step will be to install fedora on the server. After successful install there are 3 packages that need to be installed. The first package will be the bind package. Next will be the bind-utils and bind-chroot packages. After successful install of all packages we will start with adding files to the chroot directory that will be implemented for security. We will do this in anticipation if anyone hacks into the server they will be confined to that directory. To do this a copy of the named.config, named.rfc1912.zones, and the named.root.hints files will made in the /var/named/chroot/etc directory.Also copy the default zone files from/user/share/doc/bind/sample/var/named into var/named/chroot/var/named directory. In the /etc/named.config file we need to add the DNS server Birch.company.com with the ip address 206.207.208.12, mail server Cedar.company.com 206.207.208.11, and web server Aspen.company.com 206.207.208.10 to the list of servers to be added to the DMZ zone.. In the /etc/resolve.config file we need to point the DNS server to quiry the ISP DNS 82.83.84.85 for unknown names or domains. This setup will allow clients on the Corp. side to query the DMZ DNS which will in turn query the ISP DNS for any name resolution and protect the internal network from being compromised. In addition to the using chroot we will also implement SELinux as addition security. To ensure DNS will run automatically at system......

Words: 295 - Pages: 2