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DHCP server - Does Windows 2003 require it?

Does Windows 2003 require you to use DHCP server? What if you have a network sniffer? How would you find what IP address belongs to a pc if using DHCP?
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karlaf
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karlaf
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4 Solutions
 
Lee W, MVPTechnology and Business Process AdvisorCommented:
Require?  No.  But it is RECOMMENDED to more easily manage your network workstations.

You find machines through DNS and also DHCP administrator, looking up their MAC address.
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Kevin HaysIT AnalystCommented:
Along with leew's comments windows 2003 does not require it and if you are just using windows 2003 as a member server that is hosting services such as file, mail or web then you don't need the dhcp, dns, wins service at all.

On another side note it's always good to have fault tolerance in your services though.

kshays
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Jay_Jay70Commented:
Hi karlaf,

just gonna put in a small point as its worth mentioning, if you do use DHCP on your server, make sure that you have a static IP for the server and that you exclude this IP from your scope
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Kevin HaysIT AnalystCommented:
hehe, another good point Jay :)  

kshays
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GinEricCommented:
No.  And it doesn't require DNS to be installed and running either.  Same for all Server Roles except Domain Controller. PDC [Primary Domain Controller] only requires that role to get up and running as a domain.

One of the problems with all of the other roles is that they are quite a bit interdependent; you install one, it requires installation of others.  These are called "dependencies."  Dependencies mean that if you remove a role, it may also remove other roles.  And if you decide to remove a role, Windows will most likely forget all of your settings, bookmarks, accounts, etc..

That is the problem with making the roles too interdependent.

A TCP/IP packet monitor and capture program [sniffer???] should work at a level below that of most roles and should show all IP Addresses; Ethereal, Network Monitor, etc..

How to find IP of PC:  if your DNS is ISP, nslookup will generally fail if the domain records do not exist at ISP DNS.  If you are the SOA [Start of Authority], then finding IP from PC is on you and you will have to configure DNS and DHCP if running these services.

Tracing the route to the IP should return the PC name: example

tracert 192.168.1.47

Tracert to computername will return the IP Address, public or private.

if tracert can't find it, then it's not in anybody's DNS
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karlafAuthor Commented:
Right now we are pointing to our ISP's DNS so tracert isn't giving me the computer name. If I run DNS (and install AD) on the server will tracert then be able to give me the computer name?
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Lee W, MVPTechnology and Business Process AdvisorCommented:
If things are setup properly, then yes.  

If you setup a domain, you will only want to use Windows DNS and FORGET your ISP even offers DNS services in any capacity.
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karlafAuthor Commented:
I just found that I can use nbtstat -A to resolve IP to computer name so that will work for me. Thanks!
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Kevin HaysIT AnalystCommented:
Yeah, totally forget your ISP dns servers IP.  YOu want to run your own DNS server and use your ISP DNS servers IP in the forwarding tab in the DNS console.  Point all your workstations, member servers to your DNS IP.

You may or may not already know that, but I am just reitterating the fact that leew brought that to our attention.

kshays
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