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DC question [message #156201] Thu, 11 June 2009 13:22 Go to next message
RC  is currently offline RC  United States
Messages: 62
Registered: July 2009
Member
I have a situation where I have a site with 1 DC. The current OS is
2003. I have the hardware to build a new DC for this site and want to
use 2008 but I need to retain the old IP address. Any thoughts towards
the best path to accomplish this? I have a couple ways I can do this
but would like to use the most efficient.

Scenario 1: Bring up the new 2008 DC in the current site. Give it a
static IP. DC promo the old 2003 DC for this site. Once it has been
removed change the IP on the new 2008 DC to match the old 2003 box.

Scenario2: DCPROMO down the 2003 DC. Make sure all lingering objects
have been removed. DCPROMO the new 2008 DC with the old IP address

Side note – none of the DC’s in this site are FSMO holders
Re: DC question [message #156207 is a reply to message #156201] Thu, 11 June 2009 13:38 Go to previous messageGo to next message
meiweb(nospam)  is currently offline meiweb(nospam)  Germany
Messages: 1307
Registered: July 2009
Senior Member
Hello RC,

Don't know why you need the same ip address, anyway, add the new DC to the
domain with a new ip address(choose preferred DNS only the existing DNS/DC),
promote it to additional DC in the domain, make it Global catalog server
and DNS server. Let it replicate, check with the support tools dcdiag /v,
netdiag (copy it from 2003 DC, works also on 2008) and repadmin /showrepl
that everything is ok. Then change the preferred DNS to itself.

Now change the old DC to a new free ip address, run ipconfig /registerdns
and restart the netlogon service. When DNS has changed and replicated the
change to the other DNS servers, change on the new DC/DNS the addresses to
the now free ip address and make the same steps as before.

Best regards

Meinolf Weber
Disclaimer: This posting is provided "AS IS" with no warranties, and confers
no rights.
** Please do NOT email, only reply to Newsgroups
** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm


> I have a situation where I have a site with 1 DC. The current OS is
> 2003. I have the hardware to build a new DC for this site and want to
> use 2008 but I need to retain the old IP address. Any thoughts towards
> the best path to accomplish this? I have a couple ways I can do this
> but would like to use the most efficient.
>
> Scenario 1: Bring up the new 2008 DC in the current site. Give it a
> static IP. DC promo the old 2003 DC for this site. Once it has been
> removed change the IP on the new 2008 DC to match the old 2003 box.
>
> Scenario2: DCPROMO down the 2003 DC. Make sure all lingering objects
> have been removed. DCPROMO the new 2008 DC with the old IP address
>
> Side note - none of the DC's in this site are FSMO holders
>
Re: DC question [message #156210 is a reply to message #156207] Thu, 11 June 2009 14:56 Go to previous messageGo to next message
RC  is currently offline RC  United States
Messages: 62
Registered: July 2009
Member
long story short, to many things point to the IP for dns and i need a
quick fix

thanks for the advice
Re: DC question [message #156219 is a reply to message #156201] Fri, 12 June 2009 00:49 Go to previous messageGo to next message
florian  is currently offline florian  Switzerland
Messages: 484
Registered: July 2009
Senior Member
Howdie!

RC schrieb:
> Scenario 1: Bring up the new 2008 DC in the current site. Give it a
> static IP. DC promo the old 2003 DC for this site. Once it has been
> removed change the IP on the new 2008 DC to match the old 2003 box.
>
> Scenario2: DCPROMO down the 2003 DC. Make sure all lingering objects
> have been removed. DCPROMO the new 2008 DC with the old IP address

Either procedure is fine. My concern would be whether the link between
the site is capable of handing the inital replication traffic once you
dcpromo up the 2008DC. I'd probably just setup the Server 2008 and
dcpromo it while the 2003DC is running. Once the 2008DC is setup, I'd
dcpromo down the 2003DCs, let changes replicate and then re-IP the
2008DC. You'll surely want to have your clients run with both DNS-IPs of
the DCs. Saves bandwidth and the re-assignment of the site bridge works
right away.

Cheers,
Florian
--
Microsoft MVP - Group Policy
eMail: prename [at] frickelsoft [dot] net.
blog: http://www.frickelsoft.net/blog.
Maillist (german): http://frickelsoft.net/cms/index.php?page=mailingliste
Re: DC question [message #156232 is a reply to message #156201] Fri, 12 June 2009 06:23 Go to previous messageGo to next message
pbbergs  is currently offline pbbergs  United States
Messages: 1024
Registered: July 2009
Senior Member
Check out an article I have on decommissioning a DC at:
http://www.pbbergs.com/windows/articles.htm

--
Paul Bergson
MVP - Directory Services
MCTS, MCT, MCSE, MCSA, Security+, BS CSci
2008, 2003, 2000 (Early Achiever), NT4

http://www.pbbergs.com

Please no e-mails, any questions should be posted in the NewsGroup This
posting is provided "AS IS" with no warranties, and confers no rights.

"RC" <RichJChristy@gmail.com> wrote in message
news:86341314-30eb-42b2-bc14-73509b10f794@x29g2000prf.googlegroups.com...

I have a situation where I have a site with 1 DC. The current OS is
2003. I have the hardware to build a new DC for this site and want to
use 2008 but I need to retain the old IP address. Any thoughts towards
the best path to accomplish this? I have a couple ways I can do this
but would like to use the most efficient.

Scenario 1: Bring up the new 2008 DC in the current site. Give it a
static IP. DC promo the old 2003 DC for this site. Once it has been
removed change the IP on the new 2008 DC to match the old 2003 box.

Scenario2: DCPROMO down the 2003 DC. Make sure all lingering objects
have been removed. DCPROMO the new 2008 DC with the old IP address

Side note none of the DCs in this site are FSMO holders
Re: DC question [message #156238 is a reply to message #156207] Fri, 12 June 2009 06:25 Go to previous messageGo to next message
pbbergs  is currently offline pbbergs  United States
Messages: 1024
Registered: July 2009
Senior Member
Meinolf,
We have some crappy apps (Or appliances) that will only allow entry of an ip
address not a host name. I can feel his pain. Plus there are some network
rules that also won't allow names. Not sure if this is his problem but
slamming in a new dc is probably going to be easiest keeping the ip address
the same.

--
Paul Bergson
MVP - Directory Services
MCTS, MCT, MCSE, MCSA, Security+, BS CSci
2008, 2003, 2000 (Early Achiever), NT4

http://www.pbbergs.com

Please no e-mails, any questions should be posted in the NewsGroup This
posting is provided "AS IS" with no warranties, and confers no rights.

"Meinolf Weber [MVP-DS]" <meiweb(nospam)@gmx.de> wrote in message
news:ff16fb662758e8cbb8f415700f83@msnews.microsoft.com...
> Hello RC,
>
> Don't know why you need the same ip address, anyway, add the new DC to the
> domain with a new ip address(choose preferred DNS only the existing
> DNS/DC), promote it to additional DC in the domain, make it Global catalog
> server and DNS server. Let it replicate, check with the support tools
> dcdiag /v, netdiag (copy it from 2003 DC, works also on 2008) and repadmin
> /showrepl that everything is ok. Then change the preferred DNS to itself.
>
> Now change the old DC to a new free ip address, run ipconfig /registerdns
> and restart the netlogon service. When DNS has changed and replicated the
> change to the other DNS servers, change on the new DC/DNS the addresses to
> the now free ip address and make the same steps as before.
>
> Best regards
>
> Meinolf Weber
> Disclaimer: This posting is provided "AS IS" with no warranties, and
> confers no rights.
> ** Please do NOT email, only reply to Newsgroups
> ** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm
>
>> I have a situation where I have a site with 1 DC. The current OS is
>> 2003. I have the hardware to build a new DC for this site and want to
>> use 2008 but I need to retain the old IP address. Any thoughts towards
>> the best path to accomplish this? I have a couple ways I can do this
>> but would like to use the most efficient.
>>
>> Scenario 1: Bring up the new 2008 DC in the current site. Give it a
>> static IP. DC promo the old 2003 DC for this site. Once it has been
>> removed change the IP on the new 2008 DC to match the old 2003 box.
>>
>> Scenario2: DCPROMO down the 2003 DC. Make sure all lingering objects
>> have been removed. DCPROMO the new 2008 DC with the old IP address
>>
>> Side note - none of the DC's in this site are FSMO holders
>>
>
>
Re: DC question [message #156243 is a reply to message #156238] Fri, 12 June 2009 06:32 Go to previous messageGo to next message
meiweb(nospam)  is currently offline meiweb(nospam)  Germany
Messages: 1307
Registered: July 2009
Senior Member
Hello Paul Bergson [MVP-DS],

Thanks for this Paul. I always forget it. We are lucky in the moment that
our apps are not that crappy. :-)

Best regards

Meinolf Weber
Disclaimer: This posting is provided "AS IS" with no warranties, and confers
no rights.
** Please do NOT email, only reply to Newsgroups
** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm


> Meinolf,
> We have some crappy apps (Or appliances) that will only allow entry of
> an ip
> address not a host name. I can feel his pain. Plus there are some
> network
> rules that also won't allow names. Not sure if this is his problem
> but
> slamming in a new dc is probably going to be easiest keeping the ip
> address
> the same.
> http://www.pbbergs.com
>
> Please no e-mails, any questions should be posted in the NewsGroup
> This posting is provided "AS IS" with no warranties, and confers no
> rights.
>
> "Meinolf Weber [MVP-DS]" <meiweb(nospam)@gmx.de> wrote in message
> news:ff16fb662758e8cbb8f415700f83@msnews.microsoft.com...
>
>> Hello RC,
>>
>> Don't know why you need the same ip address, anyway, add the new DC
>> to the domain with a new ip address(choose preferred DNS only the
>> existing DNS/DC), promote it to additional DC in the domain, make it
>> Global catalog server and DNS server. Let it replicate, check with
>> the support tools dcdiag /v, netdiag (copy it from 2003 DC, works
>> also on 2008) and repadmin /showrepl that everything is ok. Then
>> change the preferred DNS to itself.
>>
>> Now change the old DC to a new free ip address, run ipconfig
>> /registerdns and restart the netlogon service. When DNS has changed
>> and replicated the change to the other DNS servers, change on the new
>> DC/DNS the addresses to the now free ip address and make the same
>> steps as before.
>>
>> Best regards
>>
>> Meinolf Weber
>> Disclaimer: This posting is provided "AS IS" with no warranties, and
>> confers no rights.
>> ** Please do NOT email, only reply to Newsgroups
>> ** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm
>>> I have a situation where I have a site with 1 DC. The current OS is
>>> 2003. I have the hardware to build a new DC for this site and want
>>> to use 2008 but I need to retain the old IP address. Any thoughts
>>> towards the best path to accomplish this? I have a couple ways I can
>>> do this but would like to use the most efficient.
>>>
>>> Scenario 1: Bring up the new 2008 DC in the current site. Give it a
>>> static IP. DC promo the old 2003 DC for this site. Once it has been
>>> removed change the IP on the new 2008 DC to match the old 2003 box.
>>>
>>> Scenario2: DCPROMO down the 2003 DC. Make sure all lingering objects
>>> have been removed. DCPROMO the new 2008 DC with the old IP address
>>>
>>> Side note - none of the DC's in this site are FSMO holders
>>>
Re: DC question [message #156245 is a reply to message #156243] Fri, 12 June 2009 06:37 Go to previous messageGo to next message
pbbergs  is currently offline pbbergs  United States
Messages: 1024
Registered: July 2009
Senior Member
You are certianly very fortunate. :-)

--
Paul Bergson
MVP - Directory Services
MCTS, MCT, MCSE, MCSA, Security+, BS CSci
2008, 2003, 2000 (Early Achiever), NT4

http://www.pbbergs.com

Please no e-mails, any questions should be posted in the NewsGroup This
posting is provided "AS IS" with no warranties, and confers no rights.

"Meinolf Weber [MVP-DS]" <meiweb(nospam)@gmx.de> wrote in message
news:ff16fb66277a48cbb981ae720ab3@msnews.microsoft.com...
> Hello Paul Bergson [MVP-DS],
>
> Thanks for this Paul. I always forget it. We are lucky in the moment that
> our apps are not that crappy. :-)
>
> Best regards
>
> Meinolf Weber
> Disclaimer: This posting is provided "AS IS" with no warranties, and
> confers no rights.
> ** Please do NOT email, only reply to Newsgroups
> ** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm
>
>> Meinolf,
>> We have some crappy apps (Or appliances) that will only allow entry of
>> an ip
>> address not a host name. I can feel his pain. Plus there are some
>> network
>> rules that also won't allow names. Not sure if this is his problem
>> but
>> slamming in a new dc is probably going to be easiest keeping the ip
>> address
>> the same.
>> http://www.pbbergs.com
>>
>> Please no e-mails, any questions should be posted in the NewsGroup
>> This posting is provided "AS IS" with no warranties, and confers no
>> rights.
>>
>> "Meinolf Weber [MVP-DS]" <meiweb(nospam)@gmx.de> wrote in message
>> news:ff16fb662758e8cbb8f415700f83@msnews.microsoft.com...
>>
>>> Hello RC,
>>>
>>> Don't know why you need the same ip address, anyway, add the new DC
>>> to the domain with a new ip address(choose preferred DNS only the
>>> existing DNS/DC), promote it to additional DC in the domain, make it
>>> Global catalog server and DNS server. Let it replicate, check with
>>> the support tools dcdiag /v, netdiag (copy it from 2003 DC, works
>>> also on 2008) and repadmin /showrepl that everything is ok. Then
>>> change the preferred DNS to itself.
>>>
>>> Now change the old DC to a new free ip address, run ipconfig
>>> /registerdns and restart the netlogon service. When DNS has changed
>>> and replicated the change to the other DNS servers, change on the new
>>> DC/DNS the addresses to the now free ip address and make the same
>>> steps as before.
>>>
>>> Best regards
>>>
>>> Meinolf Weber
>>> Disclaimer: This posting is provided "AS IS" with no warranties, and
>>> confers no rights.
>>> ** Please do NOT email, only reply to Newsgroups
>>> ** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm
>>>> I have a situation where I have a site with 1 DC. The current OS is
>>>> 2003. I have the hardware to build a new DC for this site and want
>>>> to use 2008 but I need to retain the old IP address. Any thoughts
>>>> towards the best path to accomplish this? I have a couple ways I can
>>>> do this but would like to use the most efficient.
>>>>
>>>> Scenario 1: Bring up the new 2008 DC in the current site. Give it a
>>>> static IP. DC promo the old 2003 DC for this site. Once it has been
>>>> removed change the IP on the new 2008 DC to match the old 2003 box.
>>>>
>>>> Scenario2: DCPROMO down the 2003 DC. Make sure all lingering objects
>>>> have been removed. DCPROMO the new 2008 DC with the old IP address
>>>>
>>>> Side note - none of the DC's in this site are FSMO holders
>>>>
>
>
Re: DC question [message #156309 is a reply to message #156219] Sun, 14 June 2009 05:42 Go to previous messageGo to next message
Hank Arnold  is currently offline Hank Arnold  United States
Messages: 141
Registered: August 2009
Senior Member
Florian Frommherz [MVP] wrote:
> Howdie!
>
> RC schrieb:
>> Scenario 1: Bring up the new 2008 DC in the current site. Give it a
>> static IP. DC promo the old 2003 DC for this site. Once it has been
>> removed change the IP on the new 2008 DC to match the old 2003 box.
>>
>> Scenario2: DCPROMO down the 2003 DC. Make sure all lingering objects
>> have been removed. DCPROMO the new 2008 DC with the old IP address
>
> Either procedure is fine. My concern would be whether the link between
> the site is capable of handing the inital replication traffic once you
> dcpromo up the 2008DC. I'd probably just setup the Server 2008 and
> dcpromo it while the 2003DC is running. Once the 2008DC is setup, I'd
> dcpromo down the 2003DCs, let changes replicate and then re-IP the
> 2008DC. You'll surely want to have your clients run with both DNS-IPs of
> the DCs. Saves bandwidth and the re-assignment of the site bridge works
> right away.
>
> Cheers,
> Florian

I think Scenario 2 is a disaster, as he describes it. There is only 1 DC
in the domain . If he demotes the current DC first, the domain is gone....

--

Regards,
Hank Arnold
Microsoft MVP
Windows Server - Directory Services
http://mypcassistant.blogspot.com/
Re: DC question [message #156310 is a reply to message #156309] Sun, 14 June 2009 05:53 Go to previous message
meiweb(nospam)  is currently offline meiweb(nospam)  Germany
Messages: 1307
Registered: July 2009
Senior Member
Hello Hank,

He wrote he has a SITE with one DC, also he wrote in Scenario one to bring
the new DC up in the current site. So not in the other site.

Best regards

Meinolf Weber
Disclaimer: This posting is provided "AS IS" with no warranties, and confers
no rights.
** Please do NOT email, only reply to Newsgroups
** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm


> Florian Frommherz [MVP] wrote:
>
>> Howdie!
>>
>> RC schrieb:
>>
>>> Scenario 1: Bring up the new 2008 DC in the current site. Give it a
>>> static IP. DC promo the old 2003 DC for this site. Once it has been
>>> removed change the IP on the new 2008 DC to match the old 2003 box.
>>>
>>> Scenario2: DCPROMO down the 2003 DC. Make sure all lingering objects
>>> have been removed. DCPROMO the new 2008 DC with the old IP address
>>>
>> Either procedure is fine. My concern would be whether the link
>> between the site is capable of handing the inital replication traffic
>> once you dcpromo up the 2008DC. I'd probably just setup the Server
>> 2008 and dcpromo it while the 2003DC is running. Once the 2008DC is
>> setup, I'd dcpromo down the 2003DCs, let changes replicate and then
>> re-IP the 2008DC. You'll surely want to have your clients run with
>> both DNS-IPs of the DCs. Saves bandwidth and the re-assignment of the
>> site bridge works right away.
>>
>> Cheers,
>> Florian
> I think Scenario 2 is a disaster, as he describes it. There is only 1
> DC in the domain . If he demotes the current DC first, the domain is
> gone....
>
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