|
|
Hi,
I have 2 Windows 2003 Servers with ONE running DNS, i am thinking of putting
a second DNS internally to handle requests if the first goes offline or gets
rebooted, can i just install a second DNS server on one of the other servers
and configure them both to replicate info between them, then give all my
clients both dns server address's.
Are there any performance issues in doing this, is there anything i need to
be aware of before i start this if i can indeed do it ?
Also I hav made GC to my other DC.
To TEST i Have shut down my main DC .so that my additonal DC shld take
charge .
But eas not able to my DOMAIN using my add. DC
Alo I am getting error that : Active directory unable to find GC. "
wHY I AM GETTING THIS ERROR.
HOW TO RESOLVE MY ISSUE.
|
|
Hello mastermind,
Just to become clear:
- both 2003 are DC
- one of them is DNS/GC
- the other is only GC
your thoughts are ok for a second DNS. Is the first DNS Active Directory
integrated? If not make it, then it will replicate over AD to other DNS server,
no additional configuration is needed.
If you install DNS to the second DC make sure that the server points only
to the first DNS server. After installation it take time for replication
(min.15 minutes) so give it time.
If the second server is also DNS server, the error you get, should disappear.
The DC/GC has NO DNS in the moment, but minimum one DNS is also needed for
the domain to run. And if you shut down your first DNS for testing no DNS
is available.
Also take care that the clients get also the second DNS server address for
their NIC settings.
Best regards
Myweb
Disclaimer: This posting is provided "AS IS" with no warranties, and confers
no rights.
[Quoted Text] > Hi,
> I have 2 Windows 2003 Servers with ONE running DNS, i am thinking of
> putting
> a second DNS internally to handle requests if the first goes offline
> or gets
> rebooted, can i just install a second DNS server on one of the other
> servers
> and configure them both to replicate info between them, then give all
> my
> clients both dns server address's.
> Are there any performance issues in doing this, is there anything i
> need to
> be aware of before i start this if i can indeed do it ?
> Also I hav made GC to my other DC.
> To TEST i Have shut down my main DC .so that my additonal DC shld take
> charge .
> But eas not able to my DOMAIN using my add. DC
> Alo I am getting error that : Active directory unable to find GC. "
> wHY I AM GETTING THIS ERROR.
>
> HOW TO RESOLVE MY ISSUE.
>
|
|
|
[Quoted Text] > Hi,
> I have 2 Windows 2003 Servers with ONE running DNS, i am thinking of
> putting
> a second DNS internally to handle requests if the first goes offline or
> gets
> rebooted, can i just install a second DNS server on one of the other
> servers
> and configure them both to replicate info between them, then give all my
> clients both dns server address's.
When the first server is offline you need to change your AD clients to use
the second DNS server as the "preferred" DNS server.
hth
DDS
"mastermind" <mastermind[ at ]discussions.microsoft.com> wrote in message
news:9E49841D-9032-4C46-9379-95B87C92E2E8[ at ]microsoft.com...
> Hi,
> I have 2 Windows 2003 Servers with ONE running DNS, i am thinking of
> putting
> a second DNS internally to handle requests if the first goes offline or
> gets
> rebooted, can i just install a second DNS server on one of the other
> servers
> and configure them both to replicate info between them, then give all my
> clients both dns server address's.
> Are there any performance issues in doing this, is there anything i need
> to
> be aware of before i start this if i can indeed do it ?
>
> Also I hav made GC to my other DC.
> To TEST i Have shut down my main DC .so that my additonal DC shld take
> charge .
>
> But eas not able to my DOMAIN using my add. DC
> Alo I am getting error that : Active directory unable to find GC. "
>
> wHY I AM GETTING THIS ERROR.
>
> HOW TO RESOLVE MY ISSUE.
|
|
"Danny Sanders" <DSanders[ at ]NOSPAMciber.com> wrote in message
news:%23PaHAWrhHHA.4076[ at ]TK2MSFTNGP06.phx.gbl...
[Quoted Text] >> Hi,
>> I have 2 Windows 2003 Servers with ONE running DNS, i am thinking of
>> putting
>> a second DNS internally to handle requests if the first goes offline or
>> gets
>> rebooted, can i just install a second DNS server on one of the other
>> servers
>> and configure them both to replicate info between them, then give all my
>> clients both dns server address's.
>
> When the first server is offline you need to change your AD clients to use
> the second DNS server as the "preferred" DNS server.
Let's recommend he do it slightly differently: Set all of the DNS clients,
including the DCs, to use BOTH of the the DNC-DCs so that when
one is down the fail over is automatic.
|
|
|
[Quoted Text] > Let's recommend he do it slightly differently: Set all of the DNS
> clients,
> including the DCs, to use BOTH of the the DNC-DCs so that when
> one is down the fail over is automatic.
Have you actually gotten this to work? Because I haven't.
I was hoping it would work this way but I haven't had any luck getting it to
work that way.
Not on a Win 2k domain or a Win 2k3 domain w/ Win 2k Sp 4 and XP SP 2
clients.
What's the secret?
TIA
"Herb Martin" <news[ at ]learnquick.com> wrote in message
news:eWnx15rhHHA.4296[ at ]TK2MSFTNGP05.phx.gbl...
>
> "Danny Sanders" <DSanders[ at ]NOSPAMciber.com> wrote in message
> news:%23PaHAWrhHHA.4076[ at ]TK2MSFTNGP06.phx.gbl...
>>> Hi,
>>> I have 2 Windows 2003 Servers with ONE running DNS, i am thinking of
>>> putting
>>> a second DNS internally to handle requests if the first goes offline or
>>> gets
>>> rebooted, can i just install a second DNS server on one of the other
>>> servers
>>> and configure them both to replicate info between them, then give all my
>>> clients both dns server address's.
>>
>> When the first server is offline you need to change your AD clients to
>> use the second DNS server as the "preferred" DNS server.
>
>
> Let's recommend he do it slightly differently: Set all of the DNS
> clients,
> including the DCs, to use BOTH of the the DNC-DCs so that when
> one is down the fail over is automatic.
>
>
|
|
It should work so long as the primary DNS server is completely offline. Is
DNS is running but not responding with the right info it wont fail over to
the secondary.
"Danny Sanders" <DSanders[ at ]NOSPAMciber.com> wrote in message
news:%23PaHAWrhHHA.4076[ at ]TK2MSFTNGP06.phx.gbl...
[Quoted Text] >> Hi,
>> I have 2 Windows 2003 Servers with ONE running DNS, i am thinking of
>> putting
>> a second DNS internally to handle requests if the first goes offline or
>> gets
>> rebooted, can i just install a second DNS server on one of the other
>> servers
>> and configure them both to replicate info between them, then give all my
>> clients both dns server address's.
>
> When the first server is offline you need to change your AD clients to use
> the second DNS server as the "preferred" DNS server.
>
> hth
> DDS
>
> "mastermind" <mastermind[ at ]discussions.microsoft.com> wrote in message
> news:9E49841D-9032-4C46-9379-95B87C92E2E8[ at ]microsoft.com...
>> Hi,
>> I have 2 Windows 2003 Servers with ONE running DNS, i am thinking of
>> putting
>> a second DNS internally to handle requests if the first goes offline or
>> gets
>> rebooted, can i just install a second DNS server on one of the other
>> servers
>> and configure them both to replicate info between them, then give all my
>> clients both dns server address's.
>> Are there any performance issues in doing this, is there anything i need
>> to
>> be aware of before i start this if i can indeed do it ?
>>
>> Also I hav made GC to my other DC.
>> To TEST i Have shut down my main DC .so that my additonal DC shld take
>> charge .
>>
>> But eas not able to my DOMAIN using my add. DC
>> Alo I am getting error that : Active directory unable to find GC. "
>>
>> wHY I AM GETTING THIS ERROR.
>>
>> HOW TO RESOLVE MY ISSUE.
>
>
|
|
Hi My Web
My Both server are DC
mY Root DC was GC as well as PRIMARY DNS server.
For backup & fail over senario i have made my add. DC as dns server for for
my client it have to DNS.
For the testing perpose i shut down my root dc to verify that my client
still able to login using my add. dc with secondry DNS.
bUT Login was unsussessfull. I got error in event viewr that
""Active Directory was unable to establish a connection with the global
catalog. ""
So that I made my add. DC as GC but still it didnt work.I got same error on
my event
viewer.
Tell me how i can i configure fail over senario.
Let me know where did wrong...
why it is not working...
Regards
Mastermind
"Myweb" wrote:
[Quoted Text] > Hello mastermind,
>
> Just to become clear:
> - both 2003 are DC
> - one of them is DNS/GC
> - the other is only GC
>
> your thoughts are ok for a second DNS. Is the first DNS Active Directory
> integrated? If not make it, then it will replicate over AD to other DNS server,
> no additional configuration is needed.
> If you install DNS to the second DC make sure that the server points only
> to the first DNS server. After installation it take time for replication
> (min.15 minutes) so give it time.
>
> If the second server is also DNS server, the error you get, should disappear.
> The DC/GC has NO DNS in the moment, but minimum one DNS is also needed for
> the domain to run. And if you shut down your first DNS for testing no DNS
> is available.
>
> Also take care that the clients get also the second DNS server address for
> their NIC settings.
>
> Best regards
>
> Myweb
> Disclaimer: This posting is provided "AS IS" with no warranties, and confers
> no rights.
>
> > Hi,
> > I have 2 Windows 2003 Servers with ONE running DNS, i am thinking of
> > putting
> > a second DNS internally to handle requests if the first goes offline
> > or gets
> > rebooted, can i just install a second DNS server on one of the other
> > servers
> > and configure them both to replicate info between them, then give all
> > my
> > clients both dns server address's.
> > Are there any performance issues in doing this, is there anything i
> > need to
> > be aware of before i start this if i can indeed do it ?
> > Also I hav made GC to my other DC.
> > To TEST i Have shut down my main DC .so that my additonal DC shld take
> > charge .
> > But eas not able to my DOMAIN using my add. DC
> > Alo I am getting error that : Active directory unable to find GC. "
> > wHY I AM GETTING THIS ERROR.
> >
> > HOW TO RESOLVE MY ISSUE.
> >
>
>
>
|
|
"Danny Sanders" <DSanders[ at ]NOSPAMciber.com> wrote in message
news:eLSFj$rhHHA.392[ at ]TK2MSFTNGP06.phx.gbl...
[Quoted Text] >> Let's recommend he do it slightly differently: Set all of the DNS
>> clients,
>> including the DCs, to use BOTH of the the DNC-DCs so that when
>> one is down the fail over is automatic.
> Have you actually gotten this to work? Because I haven't.
Of course -- this is the normal way that most everyone does it.
Unless of course we have somehow miscommunicated and you are
talking about something else.
Each of the internal DNS servers SHOULD be in the DNC Client
properties as Preferred with Alternate(s) until you have 2-5 or
so at least.
All DNS servers listed must however return the EXACT SAME
set of answers. You cannot have one server return some zones and
expect another server to return others.
> I was hoping it would work this way but I haven't had any luck getting it
> to work that way.
> Not on a Win 2k domain or a Win 2k3 domain w/ Win 2k Sp 4 and XP SP 2
> clients.
>
> What's the secret?
What's you problem when you try it?
--
Herb Martin, MCSE, MVP
http://www.LearnQuick.Com
(phone on web site)
|
|
"Jeremy" <jeremy[ at ]discussions.microsoft.com> wrote in message
news:74833721-562A-42F8-8421-0ED4A996F8DE[ at ]microsoft.com...
[Quoted Text] > It should work so long as the primary DNS server is completely offline.
> Is DNS is running but not responding with the right info it wont fail over
> to the secondary.
All DNS Server used by the clients must return all of the correct answers
the
clients will ever legitimately need.
--
Herb Martin, MCSE, MVP
http://www.LearnQuick.Com
(phone on web site)
> "Danny Sanders" <DSanders[ at ]NOSPAMciber.com> wrote in message
> news:%23PaHAWrhHHA.4076[ at ]TK2MSFTNGP06.phx.gbl...
>>> Hi,
>>> I have 2 Windows 2003 Servers with ONE running DNS, i am thinking of
>>> putting
>>> a second DNS internally to handle requests if the first goes offline or
>>> gets
>>> rebooted, can i just install a second DNS server on one of the other
>>> servers
>>> and configure them both to replicate info between them, then give all my
>>> clients both dns server address's.
>>
>> When the first server is offline you need to change your AD clients to
>> use the second DNS server as the "preferred" DNS server.
>>
>> hth
>> DDS
>>
>> "mastermind" <mastermind[ at ]discussions.microsoft.com> wrote in message
>> news:9E49841D-9032-4C46-9379-95B87C92E2E8[ at ]microsoft.com...
>>> Hi,
>>> I have 2 Windows 2003 Servers with ONE running DNS, i am thinking of
>>> putting
>>> a second DNS internally to handle requests if the first goes offline or
>>> gets
>>> rebooted, can i just install a second DNS server on one of the other
>>> servers
>>> and configure them both to replicate info between them, then give all my
>>> clients both dns server address's.
>>> Are there any performance issues in doing this, is there anything i need
>>> to
>>> be aware of before i start this if i can indeed do it ?
>>>
>>> Also I hav made GC to my other DC.
>>> To TEST i Have shut down my main DC .so that my additonal DC shld take
>>> charge .
>>>
>>> But eas not able to my DOMAIN using my add. DC
>>> Alo I am getting error that : Active directory unable to find GC. "
>>>
>>> wHY I AM GETTING THIS ERROR.
>>>
>>> HOW TO RESOLVE MY ISSUE.
>>
>>
>
|
|
Read inline please.
In news:E1A4AADD-EECF-452D-96B2-689C59225131[ at ]microsoft.com,
mastermind <mastermind[ at ]discussions.microsoft.com> typed:
[Quoted Text] > Hi My Web
>
> My Both server are DC
> mY Root DC was GC as well as PRIMARY DNS server.
> For backup & fail over senario i have made my add. DC as dns server
> for for
> my client it have to DNS.
>
> For the testing perpose i shut down my root dc to verify that my
> client
> still able to login using my add. dc with secondry DNS.
> bUT Login was unsussessfull. I got error in event viewr that
>
> ""Active Directory was unable to establish a connection with the
> global
> catalog. ""
>
> So that I made my add. DC as GC but still it didnt work.I got same
> error on
> my event
> viewer.
>
> Tell me how i can i configure fail over senario.
> Let me know where did wrong...
> why it is not working...
nslookup gc.msdcs.<forestrootdomain> should return the IP addresses of
Global Catalogs, does it?
nslookup -qtype=srv _gc._tcp.<ForestRootDomain> should return Global Catalog
names in the forest, does it?
--
Best regards,
Kevin D. Goodknecht Sr. [MVP]
Hope This Helps
Send IM: http://www.icq.com/people/webmsg.php?to=296095728
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|
|
I'm talking about just the 1 AD integrated DNS zone. Each DNS server listed
on the client are participating in the AD integrated DNS.
Take the "preferred" DNS server down and the client does not seem to roll
over to the "alternate".
Put the alternate as preferred on the client and things work as expected.
I've tested with Win 2k SP 4 servers and Win 2k and XP clients and Win 2k3
servers with Win 2k and XP clients, the "roll over" never seems to happen.
DDS
"Herb Martin" <news[ at ]learnquick.com> wrote in message
news:%23r9HSyzhHHA.4676[ at ]TK2MSFTNGP02.phx.gbl...
[Quoted Text] > > "Danny Sanders" <DSanders[ at ]NOSPAMciber.com> wrote in message > news:eLSFj$rhHHA.392[ at ]TK2MSFTNGP06.phx.gbl... >>> Let's recommend he do it slightly differently: Set all of the DNS >>> clients, >>> including the DCs, to use BOTH of the the DNC-DCs so that when >>> one is down the fail over is automatic. >> Have you actually gotten this to work? Because I haven't. > > Of course -- this is the normal way that most everyone does it. > > Unless of course we have somehow miscommunicated and you are > talking about something else. > > Each of the internal DNS servers SHOULD be in the DNC Client > properties as Preferred with Alternate(s) until you have 2-5 or > so at least. > > All DNS servers listed must however return the EXACT SAME > set of answers. You cannot have one server return some zones and > expect another server to return others. > >> I was hoping it would work this way but I haven't had any luck getting it >> to work that way. >> Not on a Win 2k domain or a Win 2k3 domain w/ Win 2k Sp 4 and XP SP 2 >> clients. >> >> What's the secret? > > What's you problem when you try it? > > > -- > Herb Martin, MCSE, MVP > http://www.LearnQuick.Com> (phone on web site) >
|
|
"Danny Sanders" <DSanders[ at ]NOSPAMciber.com> wrote in message
news:uQkHA20hHHA.4520[ at ]TK2MSFTNGP02.phx.gbl...
[Quoted Text] > I'm talking about just the 1 AD integrated DNS zone. Each DNS server
> listed on the client are participating in the AD integrated DNS.
No of zones is irrelevant -- clients are using a DNS server (set) to find
all zones.
Participating is NOT even DIRECTLY required. All that is required is
that every DNS server listed (as preferred OR alternate) be able to
resolve every name the users will ever need.
> Take the "preferred" DNS server down and the client does not seem to roll
> over to the "alternate".
>
> Put the alternate as preferred on the client and things work as expected.
> I've tested with Win 2k SP 4 servers and Win 2k and XP clients and Win 2k3
> servers with Win 2k and XP clients, the "roll over" never seems to happen.
>
> DDS
>
> "Herb Martin" <news[ at ]learnquick.com> wrote in message
> news:%23r9HSyzhHHA.4676[ at ]TK2MSFTNGP02.phx.gbl...
>>
>> "Danny Sanders" <DSanders[ at ]NOSPAMciber.com> wrote in message
>> news:eLSFj$rhHHA.392[ at ]TK2MSFTNGP06.phx.gbl...
>>>> Let's recommend he do it slightly differently: Set all of the DNS
>>>> clients,
>>>> including the DCs, to use BOTH of the the DNC-DCs so that when
>>>> one is down the fail over is automatic.
>>> Have you actually gotten this to work? Because I haven't.
>>
>> Of course -- this is the normal way that most everyone does it.
>>
>> Unless of course we have somehow miscommunicated and you are
>> talking about something else.
>>
>> Each of the internal DNS servers SHOULD be in the DNC Client
>> properties as Preferred with Alternate(s) until you have 2-5 or
>> so at least.
>>
>> All DNS servers listed must however return the EXACT SAME
>> set of answers. You cannot have one server return some zones and
>> expect another server to return others.
>>
>>> I was hoping it would work this way but I haven't had any luck getting
>>> it to work that way.
>>> Not on a Win 2k domain or a Win 2k3 domain w/ Win 2k Sp 4 and XP SP 2
>>> clients.
>>>
>>> What's the secret?
>>
>> What's you problem when you try it?
>>
>>
>> --
>> Herb Martin, MCSE, MVP
>> http://www.LearnQuick.Com
>> (phone on web site)
>>
>
>
|
|
|
[Quoted Text] > No of zones is irrelevant -- clients are using a DNS server (set) to find
> all zones.
I only said 1 zone to indicate there were no stub zones or anything fancy.
Just the AD integrated DNS zone for the domain.
> Participating is NOT even DIRECTLY required. All that is required is
> that every DNS server listed (as preferred OR alternate) be able to
> resolve every name the users will ever need.
I said it was participating in the AD integrated zone as a way to indicate
that it has the same zone information as the preferred DNS server. It
*should* be able to resolve the same information as the preferred.
Just say it's a flat domain, 2 AD integrated DNS servers been replicating
with each other for a year with no errors. Take the preferred DNS server off
line and the client does not "roll over" to use the alternate DNS server in
my experience.
DDS
"Herb Martin" <news[ at ]learnquick.com> wrote in message
news:OKcc2s1hHHA.4704[ at ]TK2MSFTNGP06.phx.gbl...
>
> "Danny Sanders" <DSanders[ at ]NOSPAMciber.com> wrote in message
> news:uQkHA20hHHA.4520[ at ]TK2MSFTNGP02.phx.gbl...
>> I'm talking about just the 1 AD integrated DNS zone. Each DNS server
>> listed on the client are participating in the AD integrated DNS.
>
> No of zones is irrelevant -- clients are using a DNS server (set) to find
> all zones.
>
> Participating is NOT even DIRECTLY required. All that is required is
> that every DNS server listed (as preferred OR alternate) be able to
> resolve every name the users will ever need.
>
>> Take the "preferred" DNS server down and the client does not seem to roll
>> over to the "alternate".
>>
>> Put the alternate as preferred on the client and things work as expected.
>> I've tested with Win 2k SP 4 servers and Win 2k and XP clients and Win
>> 2k3 servers with Win 2k and XP clients, the "roll over" never seems to
>> happen.
>>
>> DDS
>>
>> "Herb Martin" <news[ at ]learnquick.com> wrote in message
>> news:%23r9HSyzhHHA.4676[ at ]TK2MSFTNGP02.phx.gbl...
>>>
>>> "Danny Sanders" <DSanders[ at ]NOSPAMciber.com> wrote in message
>>> news:eLSFj$rhHHA.392[ at ]TK2MSFTNGP06.phx.gbl...
>>>>> Let's recommend he do it slightly differently: Set all of the DNS
>>>>> clients,
>>>>> including the DCs, to use BOTH of the the DNC-DCs so that when
>>>>> one is down the fail over is automatic.
>>>> Have you actually gotten this to work? Because I haven't.
>>>
>>> Of course -- this is the normal way that most everyone does it.
>>>
>>> Unless of course we have somehow miscommunicated and you are
>>> talking about something else.
>>>
>>> Each of the internal DNS servers SHOULD be in the DNC Client
>>> properties as Preferred with Alternate(s) until you have 2-5 or
>>> so at least.
>>>
>>> All DNS servers listed must however return the EXACT SAME
>>> set of answers. You cannot have one server return some zones and
>>> expect another server to return others.
>>>
>>>> I was hoping it would work this way but I haven't had any luck getting
>>>> it to work that way.
>>>> Not on a Win 2k domain or a Win 2k3 domain w/ Win 2k Sp 4 and XP SP 2
>>>> clients.
>>>>
>>>> What's the secret?
>>>
>>> What's you problem when you try it?
>>>
>>>
>>> --
>>> Herb Martin, MCSE, MVP
>>> http://www.LearnQuick.Com
>>> (phone on web site)
>>>
>>
>>
>
>
|
|
"Danny Sanders" <DSanders[ at ]NOSPAMciber.com> wrote in message
news:e3vX6T2hHHA.4296[ at ]TK2MSFTNGP05.phx.gbl...
[Quoted Text] >> No of zones is irrelevant -- clients are using a DNS server (set) to find
>> all zones.
>
> I only said 1 zone to indicate there were no stub zones or anything fancy.
> Just the AD integrated DNS zone for the domain.
Still doesn't matter.
>> Participating is NOT even DIRECTLY required. All that is required is
>> that every DNS server listed (as preferred OR alternate) be able to
>> resolve every name the users will ever need.
>
> I said it was participating in the AD integrated zone as a way to indicate
> that it has the same zone information as the preferred DNS server. It
> *should* be able to resolve the same information as the preferred.
>
> Just say it's a flat domain, 2 AD integrated DNS servers been replicating
> with each other for a year with no errors. Take the preferred DNS server
> off line and the client does not "roll over" to use the alternate DNS
> server in my experience.
Sure it will. Happens all the time -- were this not the case then
people would be complaining all of the time and also there would
be no reason for the multiple DNS servers on the client config.
You have some other problem in there someplace.
--
Herb Martin, MCSE, MVP
http://www.LearnQuick.Com
(phone on web site)
> DDS
>
> "Herb Martin" <news[ at ]learnquick.com> wrote in message
> news:OKcc2s1hHHA.4704[ at ]TK2MSFTNGP06.phx.gbl...
>>
>> "Danny Sanders" <DSanders[ at ]NOSPAMciber.com> wrote in message
>> news:uQkHA20hHHA.4520[ at ]TK2MSFTNGP02.phx.gbl...
>>> I'm talking about just the 1 AD integrated DNS zone. Each DNS server
>>> listed on the client are participating in the AD integrated DNS.
>>
>> No of zones is irrelevant -- clients are using a DNS server (set) to find
>> all zones.
>>
>> Participating is NOT even DIRECTLY required. All that is required is
>> that every DNS server listed (as preferred OR alternate) be able to
>> resolve every name the users will ever need.
>>
>>> Take the "preferred" DNS server down and the client does not seem to
>>> roll over to the "alternate".
>>>
>>> Put the alternate as preferred on the client and things work as
>>> expected. I've tested with Win 2k SP 4 servers and Win 2k and XP clients
>>> and Win 2k3 servers with Win 2k and XP clients, the "roll over" never
>>> seems to happen.
>>>
>>> DDS
>>>
>>> "Herb Martin" <news[ at ]learnquick.com> wrote in message
>>> news:%23r9HSyzhHHA.4676[ at ]TK2MSFTNGP02.phx.gbl...
>>>>
>>>> "Danny Sanders" <DSanders[ at ]NOSPAMciber.com> wrote in message
>>>> news:eLSFj$rhHHA.392[ at ]TK2MSFTNGP06.phx.gbl...
>>>>>> Let's recommend he do it slightly differently: Set all of the DNS
>>>>>> clients,
>>>>>> including the DCs, to use BOTH of the the DNC-DCs so that when
>>>>>> one is down the fail over is automatic.
>>>>> Have you actually gotten this to work? Because I haven't.
>>>>
>>>> Of course -- this is the normal way that most everyone does it.
>>>>
>>>> Unless of course we have somehow miscommunicated and you are
>>>> talking about something else.
>>>>
>>>> Each of the internal DNS servers SHOULD be in the DNC Client
>>>> properties as Preferred with Alternate(s) until you have 2-5 or
>>>> so at least.
>>>>
>>>> All DNS servers listed must however return the EXACT SAME
>>>> set of answers. You cannot have one server return some zones and
>>>> expect another server to return others.
>>>>
>>>>> I was hoping it would work this way but I haven't had any luck getting
>>>>> it to work that way.
>>>>> Not on a Win 2k domain or a Win 2k3 domain w/ Win 2k Sp 4 and XP SP 2
>>>>> clients.
>>>>>
>>>>> What's the secret?
>>>>
>>>> What's you problem when you try it?
>>>>
>>>>
>>>> --
>>>> Herb Martin, MCSE, MVP
>>>> http://www.LearnQuick.Com
>>>> (phone on web site)
>>>>
>>>
>>>
>>
>>
>
>
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I'm not sure what your comment means. My understanding is that a DNS client
wont query the secondary if it doesn't get the info it need from an online
primary. It will only query the secondary if the primary doesn't respond.
"Herb Martin" <news[ at ]learnquick.com> wrote in message
news:e1cZpyzhHHA.3960[ at ]TK2MSFTNGP02.phx.gbl...
[Quoted Text] > > "Jeremy" <jeremy[ at ]discussions.microsoft.com> wrote in message > news:74833721-562A-42F8-8421-0ED4A996F8DE[ at ]microsoft.com... >> It should work so long as the primary DNS server is completely offline. >> Is DNS is running but not responding with the right info it wont fail >> over to the secondary. > > All DNS Server used by the clients must return all of the correct answers > the > clients will ever legitimately need. > > > -- > Herb Martin, MCSE, MVP > http://www.LearnQuick.Com> (phone on web site) > > >> "Danny Sanders" <DSanders[ at ]NOSPAMciber.com> wrote in message >> news:%23PaHAWrhHHA.4076[ at ]TK2MSFTNGP06.phx.gbl... >>>> Hi, >>>> I have 2 Windows 2003 Servers with ONE running DNS, i am thinking of >>>> putting >>>> a second DNS internally to handle requests if the first goes offline or >>>> gets >>>> rebooted, can i just install a second DNS server on one of the other >>>> servers >>>> and configure them both to replicate info between them, then give all >>>> my >>>> clients both dns server address's. >>> >>> When the first server is offline you need to change your AD clients to >>> use the second DNS server as the "preferred" DNS server. >>> >>> hth >>> DDS >>> >>> "mastermind" <mastermind[ at ]discussions.microsoft.com> wrote in message >>> news:9E49841D-9032-4C46-9379-95B87C92E2E8[ at ]microsoft.com... >>>> Hi, >>>> I have 2 Windows 2003 Servers with ONE running DNS, i am thinking of >>>> putting >>>> a second DNS internally to handle requests if the first goes offline or >>>> gets >>>> rebooted, can i just install a second DNS server on one of the other >>>> servers >>>> and configure them both to replicate info between them, then give all >>>> my >>>> clients both dns server address's. >>>> Are there any performance issues in doing this, is there anything i >>>> need to >>>> be aware of before i start this if i can indeed do it ? >>>> >>>> Also I hav made GC to my other DC. >>>> To TEST i Have shut down my main DC .so that my additonal DC shld take >>>> charge . >>>> >>>> But eas not able to my DOMAIN using my add. DC >>>> Alo I am getting error that : Active directory unable to find GC. " >>>> >>>> wHY I AM GETTING THIS ERROR. >>>> >>>> HOW TO RESOLVE MY ISSUE. >>> >>> >> > >
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"Jeremy" <jeremy[ at ]discussions.microsoft.com> wrote in message
news:CC5CB8E8-F66B-460E-B300-0D5EC2B392C8[ at ]microsoft.com...
[Quoted Text] > I'm not sure what your comment means. My understanding is that a DNS
> client wont query the secondary if it doesn't get the info it need from an
> online primary.
DNS Clients have no concept of "Primary" or "Secondary" for
resolution -- they use one DNS server as "Preferred" and others
as Alternate(s).
> It will only query the secondary if the primary doesn't respond.
That is true -- I have been saying that all along explicitly.
It is INCORRECT to configure a DNS Client with multiple DNS
servers which don't return the SAME information, that is, which
cannot resolve EVERY request the DNS Client will ever legimately
make.
--
Herb Martin, MCSE, MVP
http://www.LearnQuick.Com
(phone on web site)
> "Herb Martin" <news[ at ]learnquick.com> wrote in message
> news:e1cZpyzhHHA.3960[ at ]TK2MSFTNGP02.phx.gbl...
>>
>> "Jeremy" <jeremy[ at ]discussions.microsoft.com> wrote in message
>> news:74833721-562A-42F8-8421-0ED4A996F8DE[ at ]microsoft.com...
>>> It should work so long as the primary DNS server is completely offline.
>>> Is DNS is running but not responding with the right info it wont fail
>>> over to the secondary.
>>
>> All DNS Server used by the clients must return all of the correct answers
>> the
>> clients will ever legitimately need.
>>
>>
>> --
>> Herb Martin, MCSE, MVP
>> http://www.LearnQuick.Com
>> (phone on web site)
>>
>>
>>> "Danny Sanders" <DSanders[ at ]NOSPAMciber.com> wrote in message
>>> news:%23PaHAWrhHHA.4076[ at ]TK2MSFTNGP06.phx.gbl...
>>>>> Hi,
>>>>> I have 2 Windows 2003 Servers with ONE running DNS, i am thinking of
>>>>> putting
>>>>> a second DNS internally to handle requests if the first goes offline
>>>>> or gets
>>>>> rebooted, can i just install a second DNS server on one of the other
>>>>> servers
>>>>> and configure them both to replicate info between them, then give all
>>>>> my
>>>>> clients both dns server address's.
>>>>
>>>> When the first server is offline you need to change your AD clients to
>>>> use the second DNS server as the "preferred" DNS server.
>>>>
>>>> hth
>>>> DDS
>>>>
>>>> "mastermind" <mastermind[ at ]discussions.microsoft.com> wrote in message
>>>> news:9E49841D-9032-4C46-9379-95B87C92E2E8[ at ]microsoft.com...
>>>>> Hi,
>>>>> I have 2 Windows 2003 Servers with ONE running DNS, i am thinking of
>>>>> putting
>>>>> a second DNS internally to handle requests if the first goes offline
>>>>> or gets
>>>>> rebooted, can i just install a second DNS server on one of the other
>>>>> servers
>>>>> and configure them both to replicate info between them, then give all
>>>>> my
>>>>> clients both dns server address's.
>>>>> Are there any performance issues in doing this, is there anything i
>>>>> need to
>>>>> be aware of before i start this if i can indeed do it ?
>>>>>
>>>>> Also I hav made GC to my other DC.
>>>>> To TEST i Have shut down my main DC .so that my additonal DC shld take
>>>>> charge .
>>>>>
>>>>> But eas not able to my DOMAIN using my add. DC
>>>>> Alo I am getting error that : Active directory unable to find GC. "
>>>>>
>>>>> wHY I AM GETTING THIS ERROR.
>>>>>
>>>>> HOW TO RESOLVE MY ISSUE.
>>>>
>>>>
>>>
>>
>>
>
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