[ExchangeList] Re: Change private IP on a cluster- In DNS, multiple computers can be named with the same name

  • From: josemedeiros@xxxxxxxxxxx
  • To: exchangelist@xxxxxxxxxxxxx, <exchangelist@xxxxxxxxxxxxx>
  • Date: Thu, 08 Jun 2006 15:24:09 +0000

Hi Mark, 

I am well aware of your credentials and skills and very much trust your 
judgment.
Do you recommend not even enabling the " select the Netbios  " option in the 
cluster service virtual name?

Can you please provide a technet article that explains this in detail?

Jose

-------------- Original message -------------- 
From: "Mark Fugatt" <markfu@xxxxxxxxxxxxx> 

> http://www.msexchange.org 
> -------------------------------------------------------I have built many 
> clusters in a large enterprise, in fact my current client is 140K users and 
> we 
> are implementing 6 Windows 2003/Exchange 2003 clusters. 
> 
> Mark Fugatt 
> Dedicated Supportability Engineer (Exchange) 
> Microsoft Limited 
> Desk: +44 (0)118 909 5630 
> Mobile: +44 (0)7966 858108 
> MSN IM: markfu@xxxxxxxxxxxxxxxxx 
> Blog: http://blogs.technet.com/mfugatt 
> Dedicated to proactively supporting Microsoft's enterprise Customers 
> If you have any feedback about my work, please let either myself or my 
> manager 
> Andy Gitsham know at andygi@xxxxxxxxxxxxx or telephone +44 118 909 3233 
> 
> 
> -----Original Message----- 
> From: exchangelist-bounce@xxxxxxxxxxxxx 
> [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Jose Medeiros 
> Sent: 08 June 2006 08:02 
> To: exchangelist@xxxxxxxxxxxxx 
> Subject: [ExchangeList] Change private IP on a cluster- In DNS, multiple 
> computers can be named with the same name 
> 
> http://www.msexchange.org 
> -------------------------------------------------------Hi Jim, 
> 
> I am only repeating what I was told when Mike Nash, Paco Cruz and Steven 
> Ashby 
> from Microsoft's Technet group flew down and met with the board of my user 
> group, the NTEA of which I was the Vice President and Postmaster 
> www.ntea.net. 
> We used an Imail list server and Fatbrain hosted the meeting shortly after 
> they 
> were acquired by Barnes and Noble . During that visit the team mentioned then 
> that all the content posted to the Technet web site and on the technet CD's 
> were 
> maintained by a small group, of course this was in late 2000 and Mike Nash 
> has 
> since moved into the security role, and things may have changed. 
> 
> I worked for Cisco, IBM, LSI Logic and I can't tell you everything their 
> products do. Of course I realize that you are an Exchange & ISA expert, but 
> how 
> many Production Clusters have you built in a large Enterprise such as 
> Microsoft? 
> 
> Let me go back to my MOC on Clustering to verify the netbios recommendation 
> in 
> the course ware, it's been several years. 
> 
> Peace, 
> 
> Jose 
> 
> ----- Original Message ----- 
> From: "Jim Harrison" 
> To: 
> Sent: Wednesday, June 07, 2006 6:17 AM 
> Subject: [ExchangeList] Re: Change private IP on a cluster- In DNS, multiple 
> computers can be named with the same name 
> 
> 
> > http://www.msexchange.org 
> > ------------------------------------------------------- 
> > 
> > Actually, "..only 5 or 6 people.." is untrue. 
> > Every CSS engineer has the tools available to them to write KBs. 
> > Additionally, every product team member has access to these as well 
> > and all of them are strongly encouraged to make their knowledge public 
> > through KBs, whitepapers, TechNet, etc., etc. 
> > 
> > It's the same argument. 
> > Name collisions cannot occur if: 
> > 1. WINS doesn't exist or is built properly (replication, etc.) 2. DNS 
> > structure is built properly 
> > 
> > BTW; I'm "from Microsoft"... 
> > 
> > -----Original Message----- 
> > From: exchangelist-bounce@xxxxxxxxxxxxx 
> > [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Jose Medeiros 
> > Sent: Wednesday, June 07, 2006 5:28 AM 
> > To: exchangelist@xxxxxxxxxxxxx; ActiveDir@xxxxxxxxxxxxxxxxxx 
> > Cc: Medeiros, Jose; douggg@xxxxxxxxxxx; president@xxxxxxxx 
> > Subject: [ExchangeList] Re: Change private IP on a cluster- In DNS, 
> > multiple computers can be named with the same name 
> > 
> > http://www.msexchange.org 
> > -------------------------------------------------------Hi Jim, 
> > 
> > I agree with you and I do find technet article's that are unclear and 
> > are missing steps, however much of it is, that Microsoft has only 5 
> > or 6 people creating that content and probably do not always test ( 
> > Or have very limited testing ) what they are listing. 
> > 
> > However, this section below makes a lot a sense. If you have a very 
> > flat domain, you probably would not have an issue. But if you have a 
> > large World Wide enterprise such as Microsoft, Cisco, Intel, Ford 
> > Motor Comany, GM, etc, with a very complex network and many DNS sub 
> > domains and childs, this may be an issue. 
> > 
> > ( Please read this sections ) 
> > " Name collisions cannot occur when you use WINS. In a WINS 
> > environment, 
> > 
> > only one computer can be named SERVERA. In DNS, multiple computers can 
> > be named SERVERA. For example, one computer may be named 
> > SERVERA.EUROPE.DOMAIN.COM and another computer may be named 
> > SERVERA.AMERICA.DOMAIN.COM. If a user who is located in the AMERICA 
> > domain types \\SERVERA, they connect to SERVERA in the AMERICA domain. 
> > If a user who is located in the AMERICA domain wants to connect to 
> > SERVERA in the EUROPE domain, that user must specify the fully 
> > qualified domain name 
> > (FQDN) 
> > SERVERA.EUROPE.DOMAIN.COM. Some programs may only permit entries with 
> > a maximum of 15 characters for NetBIOS names. These programs may still 
> > work if a mechanism exists to avoid duplicate host names and if the 
> > DNS suffix list of domains is provided to all clients." 
> > 
> > Any one from Microsoft care to comment on this? 
> > 
> > Jose :-) 
> > ---------------------------------------------------------------------- 
> > -- 
> > -------------------------- 
> > ----- Original Message ----- 
> > From: "Jim Harrison" 
> > To: 
> > Sent: Tuesday, June 06, 2006 5:56 AM 
> > Subject: [ExchangeList] Re: Change private IP on a cluster- 
> > Reply-Reply 
> > 
> > 
> >> http://www.msexchange.org 
> >> ------------------------------------------------------- 
> >> 
> >> Some articles are written with good intent, but bad information. 
> >> I spend about 10% of my time getting those corrected. 
> >> 
> >> -----Original Message----- 
> >> From: exchangelist-bounce@xxxxxxxxxxxxx 
> >> [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Jose Medeiros 
> >> Sent: Monday, June 05, 2006 10:13 PM 
> >> To: exchangelist@xxxxxxxxxxxxx; ActiveDir@xxxxxxxxxxxxxxxxxx 
> >> Subject: [ExchangeList] Change private IP on a cluster- Reply-Reply 
> >> 
> >> http://www.msexchange.org 
> >> -------------------------------------------------------Hi Jim, 
> >> 
> >> Are you sure that holds true on a clustered Exchange 2000 server? I 
> >> recall from my Microsoft 2000 server clustering class at Quickstart 
> >> Intelligence back in 2001, 
> >> 
> > http://www.quickstart.com/courses/course.asp?cat=Windows&type=88&cours 
> > e= 
> >> 2087 
> >> that the instructor stated that both Exchange 2000 and SQL 2000 
> >> clustered was dependent on NETBIOS. Was this changed in a later 
> >> service pack? 
> > Why 
> >> would Microsoft create this article dated:Article ID : 837391 
> >> Last Review : March 30, 2006 
> >> Revision : 4.0 
> >> 
> >> 
> >> Jose :-) 
> >> 
> >> 
> > ---------------------------------------------------------------------- 
> > -- 
> >> ----- 
> >> ----- Original Message ----- 
> >> From: "Jim Harrison" 
> >> To: ; 
> >> Sent: Monday, June 05, 2006 10:01 PM 
> >> Subject: [ExchangeList] Re: Change private IP on a cluster- Reply 
> >> 
> >> 
> >>> http://www.msexchange.org 
> >>> -------------------------------------------------------Neither one 
> > had 
> >> 
> >>> this dependency. 
> >>> Exch 2000 runs only on Win2K and Win2K3. 
> >>> Both of these OS prefer DNS to WINS for name resolution and if your 
> >>> network structure provides good DNS services, WINS is a non-issue 
> >>> for Exchange 2K+. 
> >>> 
> >>> -----Original Message----- 
> >>> From: exchangelist-bounce@xxxxxxxxxxxxx 
> >>> [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Jose 
> >>> Medeiros 
> >>> Sent: Monday, June 05, 2006 9:56 PM 
> >>> To: ActiveDir@xxxxxxxxxxxxxxxxxx; exchangelist@xxxxxxxxxxxxx 
> >>> Subject: [ExchangeList] Change private IP on a cluster- Reply 
> >>> 
> >>> http://www.msexchange.org 
> >>> -------------------------------------------------------Hi Jim, 
> >>> 
> >>> Looks like your post never made it to the Active Dir list. If I 
> > recall 
> >>> Exchange 2000 clustered still had dependencies on Wins, and I was 
> > told 
> >>> at a 
> >>> Microsoft Technet event that Exchange 2003 clustered no longer had 
> >> this 
> >>> requirement, until I saw the Microsoft article that I pointed out 
> >>> http://support.microsoft.com/default.aspx?scid=kb;en-us;837391 . 
> >>> 
> >>> Jose 
> >>> 
> >>> 
> >>> ----- Original Message ----- 
> >>> From: "Jim Harrison" 
> >>> To: ; 
> >>> Cc: 
> >>> Sent: Monday, June 05, 2006 6:17 AM 
> >>> Subject: [ExchangeList] Re: Change private IP on a cluster 
> >>> 
> >>> 
> >>>> http://www.msexchange.org 
> >>>> -------------------------------------------------------837391 is 
> >>> getting 
> >>>> changed. 
> >>>> I'm putting in the technical update today. 
> >>>> 
> >>>> It's wrong 
> >>>> Wrong, wrong, wrong. 
> >>>> Wrgonggitty-wrong-wrong Wrong! 
> >>>> 
> >>>> WINS is *NOT* required for Exch functionality, but proper name 
> >>>> resolution support in the network *IS* required. If you've built 
> >> your 
> >>>> network, name services & clients properly, using a "simple" name 
> > gets 
> >>>> you the same response as using FQDN in a "ping" command. 
> >>>> 
> >>>> -----Original Message----- 
> >>>> From: exchangelist-bounce@xxxxxxxxxxxxx 
> >>>> [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Jose 
> > Medeiros 
> >>>> Sent: Sunday, June 04, 2006 10:29 PM 
> >>>> To: ActiveDir@xxxxxxxxxxxxxxxxxx; exchangelist@xxxxxxxxxxxxx 
> >>>> Cc: mike.newell@xxxxxxxxxxxx 
> >>>> Subject: [ExchangeList] Change private IP on a cluster 
> >>>> 
> >>>> http://www.msexchange.org 
> >>>> -------------------------------------------------------Hi Mike, 
> >>>> 
> >>>> Looks like you are going to also have dependencies on Wins and with 
> >>> the 
> >>>> MSDTC: 
> >>>> 
> >>>> Exchange Server 2003 and Exchange 2000 Server require NetBIOS name 
> >>>> resolution for full functionality 
> >>>> http://support.microsoft.com/default.aspx?scid=kb;en-us;837391 
> >>>> 
> >>>> How to configure Microsoft Distributed Transaction Coordinator on a 
> >>>> Windows Server 2003 cluster 
> >>>> http://support.microsoft.com/default.aspx?scid=kb;en-us;301600 
> >>>> 
> >>>> Regards, 
> >>>> 
> >>>> Jose :-) 
> >>>> 
> >>>> ------------------------------------------------------------------- 
> >>>> - 
> >>>> 
> >>>> ----- Original Message ----- 
> >>>> From: Jose Medeiros 
> >>>> To: ActiveDir@xxxxxxxxxxxxxxxxxx ; exchangelist@xxxxxxxxxxxxx 
> >>>> Cc: mike.newell@xxxxxxxxxxxx 
> >>>> Sent: Sunday, June 04, 2006 9:53 PM 
> >>>> Subject: Re: [ActiveDir] Change private IP on a cluster 
> >>>> 
> >>>> 
> >>>> Hi Mike, 
> >>>> 
> >>>> I've only had to change a SQL 2000 Active / Active Cluster IP and 
> >>>> it involves some additional steps for SQL Virtual Names. It's been 
> >>>> over 
> >> 5 
> >>>> years 
> >>>> since I built an Exchange 2000 cluster, but I do not recall if 
> >>> Exchange 
> >>>> has 
> >>>> any dependencies (I would probably post this to the Exchange list 
> > and 
> >>> I 
> >>>> am 
> >>>> cc'ing them as well) 
> >>>> 
> >>>> Take a look at : 
> >>>> Exchange Server 2003 Cluster Configuration Checklist 
> >>>> 
> >>> 
> >> 
> > http://www.microsoft.com/technet/itsolutions/msit/operations/exchclust 
> > er 
> >>>> cklist.mspx?pf=true 
> >>>> 
> >>>> Changing the IP address of network adapters in cluster server 
> >>>> http://support.microsoft.com/kb/230356/EN-US/ 
> >>>> 
> >>>> Or in PDF format at: 
> >>>> 
> >>> 
> >> 
> > http://www.maned.com/support/knowledge_base/Roundhouse/Recommended_Rea 
> > di 
> >>>> ng/Q230356.pdf 
> >>>> 
> >>>> Also just in case you ever have to change it on a SQL: 
> >>>> 
> >>>> How to change the network IP addresses of SQL Server virtual 
> >>>> servers http://support.microsoft.com/kb/244980/en-us 
> >>>> 
> >>>> Hope this helps, 
> >>>> 
> >>>> Sincerely, 
> >>>> Jose Medeiros 
> >>>> MCP+I, MCSE, NT4 MCT 
> >>>> 408-765-0437 Direct 
> >>>> 408-449-6621 Cell 
> >>>> 
> >>> 
> >> 
> > ---------------------------------------------------------------------- 
> > -- 
> >>>> -------------------- 
> >>>> ----- Original Message ----- 
> >>>> From: "Mike Newell" 
> >>>> To: 
> >>>> Sent: Sunday, June 04, 2006 12:53 PM 
> >>>> Subject: [ActiveDir] Change private IP on a cluster 
> >>>> 
> >>>> 
> >>>> Doh! Didn't mean to let this go without the OT:. Sorry. 
> >>>> 
> >>>> ________________________________ 
> >>>> 
> >>>> From: ActiveDir-owner@xxxxxxxxxxxxxxxxxx on behalf of Mike Newell 
> >>>> Sent: Sun 6/4/2006 11:40 AM 
> >>>> To: ActiveDir@xxxxxxxxxxxxxxxxxx 
> >>>> Subject: [ActiveDir] Change private IP on a cluster 
> >>>> 
> >>>> 
> >>>> Hey, 
> >>>> I have an Exchange 2003 active/passive cluster on Windows 2003 and 
> >>>> I need to change the private ip on both nodes. I realize that while 
> >>>> I'm changing the IP the nodes will not talk to each other and 
> >>>> likely 
> > kick 
> >>>> the passive node off or stop the cluster service for a few minutes 
> > on 
> >>>> the passive node. 
> >>>> 
> >>>> Is there anything else I will need to do or look out for? I don't 
> >>>> *think* this is a big deal but since it's a production cluster, and 
> >>> I've 
> >>>> never had to do this, I thought I would check before I tried it. 
> >>>> 
> >>>> Thanks again. 
> >>>> 
> >>>> Mike. 
> >>>> 
> >>>> ------------------------------------------------------- 
> >>> 
> >> 
> > 
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