You are correct, but realistically a DDNS setup requires DNS and DCs to
coexist, I'd expect that to be the much more likely scenario.

--------------------------------------------------------------
Roger D. Seielstad - MCSE
Sr. Systems Administrator
Inovis Inc.


> -----Original Message-----
> From: Rick Kingslan [mailto:[EMAIL PROTECTED] 
> Sent: Monday, March 24, 2003 10:34 PM
> To: [EMAIL PROTECTED]
> Subject: RE: [ActiveDir] What Services/Server's can be 
> combined with Active Directory.
> 
> 
> Missy,
> 
> Doesn't this only apply when a DNS is also present on the DC? 
>  Combining the DNS and DHCP services can cause a security 
> issue as you noted.  But, if I combine DC services and DNS 
> services, the compromise is not possible.  Also, if I combine 
> DHCP and DC functionality, I'm still secure - true?
> 
> Good to have you here!
> 
> Rick Kingslan  MCSE, MCSA, MCT
> Microsoft MVP - Active Directory
> Associate Expert
> Expert Zone - www.microsoft.com/windowsxp/expertzone
>   
> 
> 
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of 
> Missy Koslosky
> Sent: Monday, March 24, 2003 9:18 PM
> To: [EMAIL PROTECTED]
> 
> Glenn,
> 
> I'd want to keep DHCP off my DC's to avoid name hijacking.  
> See http://support.microsoft.com/default.aspx?scid=kb;EN-US;Q255134
> 
> Hope all is well with you!
> 
> Missy Koslosky
> ----- Original Message -----
> From: "Glenn Corbett" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Saturday, March 22, 2003 5:33 PM
> Subject: Re: [ActiveDir] What Services/Server's can be 
> combined with Active Directory.
> 
> 
> John,
> 
> The reason why you havent really been able to find a source, 
> is that the answer is "it depends".
> 
> Depending on the size of your sites, the amount of data, 
> number of clients, other applications using DC services etc, 
> you can really have a single server that does DC, GC, DNS, 
> WINS, DHCP, FP.  I really wouldn't worry about putting DHCP 
> on a server by itself, the load is so small. Out of all of 
> the infrastructure services, DCHP is probably the smallest 
> load.  Client machines get a dhcp address when they start, 
> and IIRC there are two requests during the lifetime of the IP 
> address (one halfway though, and one at the end of the 
> lease).  So for a 2 week lease timeout, you have essentially 
> 3 requests to a DHCP server which is nothing to really worry about.
> 
> I recently did some AD design work where small sites (up to 
> about 30 uers) had a single server (Dual PIII 2+Ghz) ran all 
> the functions listed previously, plus Exchange with no real 
> trouble.  For larger sites, my suggestion would be one 
> "infrastructure server" (DC, GC, WINS, DHCP, DNS), and 
> "application server(s)" (File Print, Exchange etc).
> 
> As long as you design your AD site topology correctly (so 
> that replication is optimised, and GC placement is relevant 
> for your clients), AD can pretty much co-exist with most 
> things, its a question of network bandwidth and load on the 
> server.  Other Databases (like Exchange, SQL, Oracle) are 
> really the main applications you need to be careful with when 
> putting on the same server as AD, because they can cramp each 
> others style (Exchange and SQL on the same box for example is 
> very touchy).
> 
> If you are thinking or layering other applications onto an AD 
> DC, just have a read of the requirements.  In a lot of cases 
> MS "force" you down a particular path. For example, SUS 
> (System Update Services), and MOM (Microsoft Ops Manager) 
> wont run on DC's, so you are forced to put in an additional 
> server to run these.
> 
> so, as for your original question *grin*, I would have one 
> server that does the "infrastructure" stuff, and another 
> server for FP.
> 
> Glenn
> 
> 
> ----- Original Message -----
> From: "John Strongosky" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Saturday, March 22, 2003 11:27 AM
> Subject: [ActiveDir] What Services/Server's can be combined 
> with Active Directory.
> 
> 
> > In our planning group we are having a discussion on what
> > server's/services do we need to combine or can combine for our AD 
> > deployment. I have looked thru allot of Technote's there is not one 
> > definitive answer. Can anyone point me to a source or 
> answer this for me.
> >
> > We are thinking of combing: DC,dns and gc's on a server, file and
> > print
> and
> > dhcp on another in our sites or DC, dns, gc on a server, file and
> > print on
> a
> > server and dhcp by itself.
> >
> >
> > john
> >
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