You are the systems administrator for Exponent Mathematicians, and you have been asked to implement DNS for a purely Windows environment, taking full advantage of the benefits of Windows Server 2003. How should you do this and why?
2.
You are the systems administrator of the Get Stuffed Taxidermists chain DNS server. You are getting complaints from several field locations that it takes a long time to resolve addresses. All the sites complaining are across slow (128Kbps) WAN links. What should you do?
3.
What must you create and configure to ensure that the nslookup command will work properly on your network?
4.
You're the systems administrator of the Windows Server 2003 DNS server for Little Faith Enterprises. An end user is trying to download the 128-bit version of the Windows Server 2003 Service Pack 3. Microsoft's Web site keeps denying him access, saying that his domain cannot be resolved. What can you do to fix this?
5.
You're the systems administrator for the Think About IT Consulting Services company. You are running a Windows NT 4.0 domain architecture and have just implemented your first Windows Server 2003 client computers. You have configured the client computers to perform dynamic updates to DNS, but they are not appearing in the table. Why are they not appearing, and what should you do to fix the problem?
Answers to Review Questions
1.
Placement of the DNS servers is dependent on the network infrastructure of the company, but you need a Windows Server 2003 DNS service. Windows NT 4.0 DNS does not support the DDNS, and although other DNS servers support DDNS, the requirement for a purely Windows environment leaves them out. Although there may be benefits to some of the other platforms, a single-platform solution is not uncommon in environments where the administrators are most familiar with Windows NT. For more information, see the section "Configuring Zones."
2.
You should place a secondary master DNS server at each of the complaining sites. This will give the sites local DNS resolution and a local cache of commonly visited Internet addresses. For more information, see the section "Installing and Configuring the DNS Server Service."
3.
You must create and properly configure one or more reverse lookup zones in order for the nslookup command to function properly. By default, no reverse lookup zones will be automatically created for you; you will need to ensure they are created on your own. For more information, see the section "Reverse Lookups."
4.
You need to make sure the end user had an entry in your reverse lookup table. Microsoft's site is trying to verify his location based on your domain and needs to be able to do a reverse lookup. If you do not have a reverse lookup zone, you need to create one. For more information, see the section "Reverse Lookups."
5.
Windows NT 4.0's DNS server does not support DDNS updates. You need to upgrade to Windows Server 2003 DNS or migrate to a third-party implementation of DNS that supports dynamic updates. For more information, see the section "Configuring Zones."
