| Author |
Message |
Nathan Guidry
Guest
|
 Posted:
Tue Dec 14, 2004 10:50 pm Post subject:
DNS as a Generic Cluster Service |
|
|
| Is it possible to add DNS as a Generic Service to a Cluster group? |
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|
 |
Rodney R. Fournier [MVP]
Guest
|
| Posted:
Wed Dec 15, 2004 3:14 am Post subject:
Re: DNS as a Generic Cluster Service |
|
|
Technically yes. Have I tried it, NO. Will I ever? NO way. Do I see a need
to do this NO!
If you use Active Directory Integrated DNS, then each DC will have DNS and
you are good to go. If you are not, you should have one or more secondary
copies (which you can click on and make primaries), so you are good to go.
I just don't see the business need to cluster DNS, when you other supported
choices.
Cheers,
Rod
MVP - Windows Server - Clustering
http://www.nw-america.com - Clustering
http://www.msmvps.com/clustering - Blog
"Nathan Guidry" <nguidry@jjma.com> wrote in message
news:Ope27zf4EHA.252@TK2MSFTNGP10.phx.gbl...
| Quote: | Is it possible to add DNS as a Generic Service to a Cluster group?
|
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|
| Back to top |
|
|
Ramon Jiménez
Guest
|
| Posted:
Wed Dec 15, 2004 9:06 am Post subject:
Re: DNS as a Generic Cluster Service |
|
|
Although I fully agree with most of your statements I would like to raise
the following concerns...
If I want to have high availability on DNS service...Why should I rely on
Domain controllers? I'd rather go with a dedicated DNS server without the
overload of being a DC
Once said that, and bearing in mind that a user could require dedicated DNS
service (without) not dependant on DC's...what do not make possible ( by
default in MSCS) to clusterize DNS Service (as you can do with DHCP)?
That way, the Primary Zone would have high availability...
I have always wondered why MS did not DNS clustering by default...because I
agree that AD relies on DNS...but if your intention is only to provide with
a reliable and highly available DNS service, why mandatory DC's?
Just my 0.02 cents....and acting as devil lawyer...
--
Saludos
Ramon
PMP, ITIL Certified
MCSE & MCSA 2000/2003, CCA
"Rodney R. Fournier [MVP]" <rod@die.spam.die.nw-america.com> wrote in
message news:%23c7QdHi4EHA.1264@TK2MSFTNGP12.phx.gbl...
| Quote: | Technically yes. Have I tried it, NO. Will I ever? NO way. Do I see a need
to do this NO!
If you use Active Directory Integrated DNS, then each DC will have DNS and
you are good to go. If you are not, you should have one or more secondary
copies (which you can click on and make primaries), so you are good to go.
I just don't see the business need to cluster DNS, when you other
supported choices.
Cheers,
Rod
MVP - Windows Server - Clustering
http://www.nw-america.com - Clustering
http://www.msmvps.com/clustering - Blog
"Nathan Guidry" <nguidry@jjma.com> wrote in message
news:Ope27zf4EHA.252@TK2MSFTNGP10.phx.gbl...
Is it possible to add DNS as a Generic Service to a Cluster group?
|
|
|
| Back to top |
|
|
Rodney R. Fournier [MVP]
Guest
|
| Posted:
Wed Dec 15, 2004 9:46 am Post subject:
Re: DNS as a Generic Cluster Service |
|
|
Great points, let me try and give my take on the matter...
"Ramon Jiménez" <rjimenezm.athome@my.hotmail.com> wrote in message
news:%23ayYkMl4EHA.2124@TK2MSFTNGP15.phx.gbl...
| Quote: | Although I fully agree with most of your statements I would like to raise
the following concerns...
If I want to have high availability on DNS service...Why should I rely on
Domain controllers? I'd rather go with a dedicated DNS server without the
overload of being a DC
|
Note I stated that having a Primary and Secondaries would also work - those
could be UNIX boxes :) 99.999% of the installs would never benefit from a
dedicated DNS server. The Root servers, ISPs, etc. yes, the rest of the
world, no way. Running on a DC in a Microsoft shop, is the way to go.
| Quote: | Once said that, and bearing in mind that a user could require dedicated
DNS service (without) not dependant on DC's...what do not make possible
( by default in MSCS) to clusterize DNS Service (as you can do with DHCP)?
That way, the Primary Zone would have high availability...
|
Again why? AD integrated makes ALL the server Primaries for the zones. Way
cool. UNIX does not have that. You want HA, use your DC's :) DNS traffic is
about 1% of all network traffic, it won't hurt your DC's.
| Quote: | I have always wondered why MS did not DNS clustering by default...because
I agree that AD relies on DNS...but if your intention is only to provide
with a reliable and highly available DNS service, why mandatory DC's?
|
My take, and this is 100% me here. 1) They don't want you too. They want and
firmly believe that AD integrated is the way to go, all primaries are great
HA. 2) If you could cluster DNS, many would. Seems like a DUH right? Nope,
cause those that did many not get greater value from clustering. Having
DC/DNS servers all over the place is a way better design for most. 3)
Additional product to support. MS already has to do a ton of DNS support. As
you know, everything needs DNS today, adding clustering to the mix would
make more work for the DNS team, and to what end?
| Quote: | Just my 0.02 cents....and acting as devil lawyer...
|
Always buddy, these topics make us all think out of the box. Like I tell
most of my MCT classes, in the world of Microsoft, if there is not 6 ways to
something, it can't be done. If you already know 2 or 3, you are missing 50%
of what is out there.
| Quote: | --
Saludos
Ramon
PMP, ITIL Certified
MCSE & MCSA 2000/2003, CCA
"Rodney R. Fournier [MVP]" <rod@die.spam.die.nw-america.com> wrote in
message news:%23c7QdHi4EHA.1264@TK2MSFTNGP12.phx.gbl...
Technically yes. Have I tried it, NO. Will I ever? NO way. Do I see a
need to do this NO!
If you use Active Directory Integrated DNS, then each DC will have DNS
and you are good to go. If you are not, you should have one or more
secondary copies (which you can click on and make primaries), so you are
good to go.
I just don't see the business need to cluster DNS, when you other
supported choices.
Cheers,
Rod
MVP - Windows Server - Clustering
http://www.nw-america.com - Clustering
http://www.msmvps.com/clustering - Blog
"Nathan Guidry" <nguidry@jjma.com> wrote in message
news:Ope27zf4EHA.252@TK2MSFTNGP10.phx.gbl...
Is it possible to add DNS as a Generic Service to a Cluster group?
|
|
|
| Back to top |
|
|
Nathan Guidry
Guest
|
| Posted:
Wed Dec 15, 2004 7:05 pm Post subject:
Re: DNS as a Generic Cluster Service |
|
|
I have only 1 DC. That is why I am asking. My 2 servers that are nodes in
the cluster are not AD because I'm installing WUS on them which does not go
on a server with AD. How do I cluster DNS???
"Rodney R. Fournier [MVP]" <rod@die.spam.die.nw-america.com> wrote in
message news:el6QVjl4EHA.1204@TK2MSFTNGP10.phx.gbl...
| Quote: | Great points, let me try and give my take on the matter...
"Ramon Jiménez" <rjimenezm.athome@my.hotmail.com> wrote in message
news:%23ayYkMl4EHA.2124@TK2MSFTNGP15.phx.gbl...
Although I fully agree with most of your statements I would like to
raise
the following concerns...
If I want to have high availability on DNS service...Why should I rely
on
Domain controllers? I'd rather go with a dedicated DNS server without
the
overload of being a DC
Note I stated that having a Primary and Secondaries would also work -
those
could be UNIX boxes :) 99.999% of the installs would never benefit from a
dedicated DNS server. The Root servers, ISPs, etc. yes, the rest of the
world, no way. Running on a DC in a Microsoft shop, is the way to go.
Once said that, and bearing in mind that a user could require dedicated
DNS service (without) not dependant on DC's...what do not make possible
( by default in MSCS) to clusterize DNS Service (as you can do with
DHCP)?
That way, the Primary Zone would have high availability...
Again why? AD integrated makes ALL the server Primaries for the zones. Way
cool. UNIX does not have that. You want HA, use your DC's :) DNS traffic
is
about 1% of all network traffic, it won't hurt your DC's.
I have always wondered why MS did not DNS clustering by
default...because
I agree that AD relies on DNS...but if your intention is only to provide
with a reliable and highly available DNS service, why mandatory DC's?
My take, and this is 100% me here. 1) They don't want you too. They want
and
firmly believe that AD integrated is the way to go, all primaries are
great
HA. 2) If you could cluster DNS, many would. Seems like a DUH right? Nope,
cause those that did many not get greater value from clustering. Having
DC/DNS servers all over the place is a way better design for most. 3)
Additional product to support. MS already has to do a ton of DNS support.
As
you know, everything needs DNS today, adding clustering to the mix would
make more work for the DNS team, and to what end?
Just my 0.02 cents....and acting as devil lawyer...
Always buddy, these topics make us all think out of the box. Like I tell
most of my MCT classes, in the world of Microsoft, if there is not 6 ways
to
something, it can't be done. If you already know 2 or 3, you are missing
50%
of what is out there.
--
Saludos
Ramon
PMP, ITIL Certified
MCSE & MCSA 2000/2003, CCA
"Rodney R. Fournier [MVP]" <rod@die.spam.die.nw-america.com> wrote in
message news:%23c7QdHi4EHA.1264@TK2MSFTNGP12.phx.gbl...
Technically yes. Have I tried it, NO. Will I ever? NO way. Do I see a
need to do this NO!
If you use Active Directory Integrated DNS, then each DC will have DNS
and you are good to go. If you are not, you should have one or more
secondary copies (which you can click on and make primaries), so you
are
good to go.
I just don't see the business need to cluster DNS, when you other
supported choices.
Cheers,
Rod
MVP - Windows Server - Clustering
http://www.nw-america.com - Clustering
http://www.msmvps.com/clustering - Blog
"Nathan Guidry" <nguidry@jjma.com> wrote in message
news:Ope27zf4EHA.252@TK2MSFTNGP10.phx.gbl...
Is it possible to add DNS as a Generic Service to a Cluster group?
|
|
|
| Back to top |
|
|
Rodney R. Fournier [MVP]
Guest
|
| Posted:
Wed Dec 15, 2004 7:17 pm Post subject:
Re: DNS as a Generic Cluster Service |
|
|
I am sorry, I can't give you steps for what I don't have.
Rod
"Nathan Guidry" <nguidry@jjma.com> wrote in message
news:OVM7Vaq4EHA.4072@TK2MSFTNGP10.phx.gbl...
| Quote: | I have only 1 DC. That is why I am asking. My 2 servers that are nodes in
the cluster are not AD because I'm installing WUS on them which does not
go
on a server with AD. How do I cluster DNS???
"Rodney R. Fournier [MVP]" <rod@die.spam.die.nw-america.com> wrote in
message news:el6QVjl4EHA.1204@TK2MSFTNGP10.phx.gbl...
Great points, let me try and give my take on the matter...
"Ramon Jiménez" <rjimenezm.athome@my.hotmail.com> wrote in message
news:%23ayYkMl4EHA.2124@TK2MSFTNGP15.phx.gbl...
Although I fully agree with most of your statements I would like to
raise
the following concerns...
If I want to have high availability on DNS service...Why should I rely
on
Domain controllers? I'd rather go with a dedicated DNS server without
the
overload of being a DC
Note I stated that having a Primary and Secondaries would also work -
those
could be UNIX boxes :) 99.999% of the installs would never benefit from a
dedicated DNS server. The Root servers, ISPs, etc. yes, the rest of the
world, no way. Running on a DC in a Microsoft shop, is the way to go.
Once said that, and bearing in mind that a user could require dedicated
DNS service (without) not dependant on DC's...what do not make possible
( by default in MSCS) to clusterize DNS Service (as you can do with
DHCP)?
That way, the Primary Zone would have high availability...
Again why? AD integrated makes ALL the server Primaries for the zones.
Way
cool. UNIX does not have that. You want HA, use your DC's :) DNS traffic
is
about 1% of all network traffic, it won't hurt your DC's.
I have always wondered why MS did not DNS clustering by
default...because
I agree that AD relies on DNS...but if your intention is only to
provide
with a reliable and highly available DNS service, why mandatory DC's?
My take, and this is 100% me here. 1) They don't want you too. They want
and
firmly believe that AD integrated is the way to go, all primaries are
great
HA. 2) If you could cluster DNS, many would. Seems like a DUH right?
Nope,
cause those that did many not get greater value from clustering. Having
DC/DNS servers all over the place is a way better design for most. 3)
Additional product to support. MS already has to do a ton of DNS support.
As
you know, everything needs DNS today, adding clustering to the mix would
make more work for the DNS team, and to what end?
Just my 0.02 cents....and acting as devil lawyer...
Always buddy, these topics make us all think out of the box. Like I tell
most of my MCT classes, in the world of Microsoft, if there is not 6 ways
to
something, it can't be done. If you already know 2 or 3, you are missing
50%
of what is out there.
--
Saludos
Ramon
PMP, ITIL Certified
MCSE & MCSA 2000/2003, CCA
"Rodney R. Fournier [MVP]" <rod@die.spam.die.nw-america.com> wrote in
message news:%23c7QdHi4EHA.1264@TK2MSFTNGP12.phx.gbl...
Technically yes. Have I tried it, NO. Will I ever? NO way. Do I see a
need to do this NO!
If you use Active Directory Integrated DNS, then each DC will have DNS
and you are good to go. If you are not, you should have one or more
secondary copies (which you can click on and make primaries), so you
are
good to go.
I just don't see the business need to cluster DNS, when you other
supported choices.
Cheers,
Rod
MVP - Windows Server - Clustering
http://www.nw-america.com - Clustering
http://www.msmvps.com/clustering - Blog
"Nathan Guidry" <nguidry@jjma.com> wrote in message
news:Ope27zf4EHA.252@TK2MSFTNGP10.phx.gbl...
Is it possible to add DNS as a Generic Service to a Cluster group?
|
|
|
| Back to top |
|
|
Gerald Aigenbauer
Guest
|
| Posted:
Wed Dec 15, 2004 7:23 pm Post subject:
Re: DNS as a Generic Cluster Service |
|
|
hi nathan!
you can "cluster" it as a "generic service". so create a generic service
resource and write the dns-server service name in the service field. then go
to both cluster nodes and set dns server to manual. now it´s working...
BUT... as rodney mentioned it makes no real sense for me...
gerald aigenbauer.
"Nathan Guidry" <nguidry@jjma.com> schrieb im Newsbeitrag
news:OVM7Vaq4EHA.4072@TK2MSFTNGP10.phx.gbl...
| Quote: | I have only 1 DC. That is why I am asking. My 2 servers that are nodes in
the cluster are not AD because I'm installing WUS on them which does not
go
on a server with AD. How do I cluster DNS???
"Rodney R. Fournier [MVP]" <rod@die.spam.die.nw-america.com> wrote in
message news:el6QVjl4EHA.1204@TK2MSFTNGP10.phx.gbl...
Great points, let me try and give my take on the matter...
"Ramon Jiménez" <rjimenezm.athome@my.hotmail.com> wrote in message
news:%23ayYkMl4EHA.2124@TK2MSFTNGP15.phx.gbl...
Although I fully agree with most of your statements I would like to
raise
the following concerns...
If I want to have high availability on DNS service...Why should I rely
on
Domain controllers? I'd rather go with a dedicated DNS server without
the
overload of being a DC
Note I stated that having a Primary and Secondaries would also work -
those
could be UNIX boxes :) 99.999% of the installs would never benefit from a
dedicated DNS server. The Root servers, ISPs, etc. yes, the rest of the
world, no way. Running on a DC in a Microsoft shop, is the way to go.
Once said that, and bearing in mind that a user could require dedicated
DNS service (without) not dependant on DC's...what do not make possible
( by default in MSCS) to clusterize DNS Service (as you can do with
DHCP)?
That way, the Primary Zone would have high availability...
Again why? AD integrated makes ALL the server Primaries for the zones.
Way
cool. UNIX does not have that. You want HA, use your DC's :) DNS traffic
is
about 1% of all network traffic, it won't hurt your DC's.
I have always wondered why MS did not DNS clustering by
default...because
I agree that AD relies on DNS...but if your intention is only to
provide
with a reliable and highly available DNS service, why mandatory DC's?
My take, and this is 100% me here. 1) They don't want you too. They want
and
firmly believe that AD integrated is the way to go, all primaries are
great
HA. 2) If you could cluster DNS, many would. Seems like a DUH right?
Nope,
cause those that did many not get greater value from clustering. Having
DC/DNS servers all over the place is a way better design for most. 3)
Additional product to support. MS already has to do a ton of DNS support.
As
you know, everything needs DNS today, adding clustering to the mix would
make more work for the DNS team, and to what end?
Just my 0.02 cents....and acting as devil lawyer...
Always buddy, these topics make us all think out of the box. Like I tell
most of my MCT classes, in the world of Microsoft, if there is not 6 ways
to
something, it can't be done. If you already know 2 or 3, you are missing
50%
of what is out there.
--
Saludos
Ramon
PMP, ITIL Certified
MCSE & MCSA 2000/2003, CCA
"Rodney R. Fournier [MVP]" <rod@die.spam.die.nw-america.com> wrote in
message news:%23c7QdHi4EHA.1264@TK2MSFTNGP12.phx.gbl...
Technically yes. Have I tried it, NO. Will I ever? NO way. Do I see a
need to do this NO!
If you use Active Directory Integrated DNS, then each DC will have DNS
and you are good to go. If you are not, you should have one or more
secondary copies (which you can click on and make primaries), so you
are
good to go.
I just don't see the business need to cluster DNS, when you other
supported choices.
Cheers,
Rod
MVP - Windows Server - Clustering
http://www.nw-america.com - Clustering
http://www.msmvps.com/clustering - Blog
"Nathan Guidry" <nguidry@jjma.com> wrote in message
news:Ope27zf4EHA.252@TK2MSFTNGP10.phx.gbl...
Is it possible to add DNS as a Generic Service to a Cluster group?
|
|
|
| Back to top |
|
|
Rodney R. Fournier [MVP]
Guest
|
| Posted:
Wed Dec 15, 2004 7:34 pm Post subject:
Re: DNS as a Generic Cluster Service |
|
|
I have been thinking more about this. If you only have 1 DC, I would worry
about that before I even looked at clustering. If that one DC goes down, no
Forest, Domain, or Tree. A true single point of failure.
Cheers,
Rod
MVP - Windows Server - Clustering
http://www.nw-america.com - Clustering
http://www.msmvps.com/clustering - Blog
"Gerald Aigenbauer" <ga@ntc.at> wrote in message
news:OlCpAlq4EHA.3236@TK2MSFTNGP15.phx.gbl...
| Quote: | hi nathan!
you can "cluster" it as a "generic service". so create a generic service
resource and write the dns-server service name in the service field. then
go to both cluster nodes and set dns server to manual. now it´s working...
BUT... as rodney mentioned it makes no real sense for me...
gerald aigenbauer.
"Nathan Guidry" <nguidry@jjma.com> schrieb im Newsbeitrag
news:OVM7Vaq4EHA.4072@TK2MSFTNGP10.phx.gbl...
I have only 1 DC. That is why I am asking. My 2 servers that are nodes
in
the cluster are not AD because I'm installing WUS on them which does not
go
on a server with AD. How do I cluster DNS???
"Rodney R. Fournier [MVP]" <rod@die.spam.die.nw-america.com> wrote in
message news:el6QVjl4EHA.1204@TK2MSFTNGP10.phx.gbl...
Great points, let me try and give my take on the matter...
"Ramon Jiménez" <rjimenezm.athome@my.hotmail.com> wrote in message
news:%23ayYkMl4EHA.2124@TK2MSFTNGP15.phx.gbl...
Although I fully agree with most of your statements I would like to
raise
the following concerns...
If I want to have high availability on DNS service...Why should I rely
on
Domain controllers? I'd rather go with a dedicated DNS server without
the
overload of being a DC
Note I stated that having a Primary and Secondaries would also work -
those
could be UNIX boxes :) 99.999% of the installs would never benefit from
a
dedicated DNS server. The Root servers, ISPs, etc. yes, the rest of the
world, no way. Running on a DC in a Microsoft shop, is the way to go.
Once said that, and bearing in mind that a user could require
dedicated
DNS service (without) not dependant on DC's...what do not make
possible
( by default in MSCS) to clusterize DNS Service (as you can do with
DHCP)?
That way, the Primary Zone would have high availability...
Again why? AD integrated makes ALL the server Primaries for the zones.
Way
cool. UNIX does not have that. You want HA, use your DC's :) DNS traffic
is
about 1% of all network traffic, it won't hurt your DC's.
I have always wondered why MS did not DNS clustering by
default...because
I agree that AD relies on DNS...but if your intention is only to
provide
with a reliable and highly available DNS service, why mandatory DC's?
My take, and this is 100% me here. 1) They don't want you too. They want
and
firmly believe that AD integrated is the way to go, all primaries are
great
HA. 2) If you could cluster DNS, many would. Seems like a DUH right?
Nope,
cause those that did many not get greater value from clustering. Having
DC/DNS servers all over the place is a way better design for most. 3)
Additional product to support. MS already has to do a ton of DNS
support.
As
you know, everything needs DNS today, adding clustering to the mix would
make more work for the DNS team, and to what end?
Just my 0.02 cents....and acting as devil lawyer...
Always buddy, these topics make us all think out of the box. Like I tell
most of my MCT classes, in the world of Microsoft, if there is not 6
ways
to
something, it can't be done. If you already know 2 or 3, you are missing
50%
of what is out there.
--
Saludos
Ramon
PMP, ITIL Certified
MCSE & MCSA 2000/2003, CCA
"Rodney R. Fournier [MVP]" <rod@die.spam.die.nw-america.com> wrote in
message news:%23c7QdHi4EHA.1264@TK2MSFTNGP12.phx.gbl...
Technically yes. Have I tried it, NO. Will I ever? NO way. Do I see a
need to do this NO!
If you use Active Directory Integrated DNS, then each DC will have
DNS
and you are good to go. If you are not, you should have one or more
secondary copies (which you can click on and make primaries), so you
are
good to go.
I just don't see the business need to cluster DNS, when you other
supported choices.
Cheers,
Rod
MVP - Windows Server - Clustering
http://www.nw-america.com - Clustering
http://www.msmvps.com/clustering - Blog
"Nathan Guidry" <nguidry@jjma.com> wrote in message
news:Ope27zf4EHA.252@TK2MSFTNGP10.phx.gbl...
Is it possible to add DNS as a Generic Service to a Cluster group?
|
|
|
| Back to top |
|
|
Ramon Jiménez
Guest
|
| Posted:
Wed Dec 15, 2004 7:41 pm Post subject:
Re: DNS as a Generic Cluster Service |
|
|
Totally agree. It makes no sense having a High availability cluster
providing any service on it if the **MAIN** authentication provider (DC) has
no redundancy
--
Saludos
Ramon
PMP, ITIL Certified
MCSE & MCSA 2000/2003, CCA
"Rodney R. Fournier [MVP]" <rod@die.spam.die.nw-america.com> wrote in
message news:%23y%23rhrq4EHA.3092@TK2MSFTNGP10.phx.gbl...
| Quote: | I have been thinking more about this. If you only have 1 DC, I would worry
about that before I even looked at clustering. If that one DC goes down, no
Forest, Domain, or Tree. A true single point of failure.
Cheers,
Rod
MVP - Windows Server - Clustering
http://www.nw-america.com - Clustering
http://www.msmvps.com/clustering - Blog
"Gerald Aigenbauer" <ga@ntc.at> wrote in message
news:OlCpAlq4EHA.3236@TK2MSFTNGP15.phx.gbl...
hi nathan!
you can "cluster" it as a "generic service". so create a generic service
resource and write the dns-server service name in the service field. then
go to both cluster nodes and set dns server to manual. now it´s
working... BUT... as rodney mentioned it makes no real sense for me...
gerald aigenbauer.
"Nathan Guidry" <nguidry@jjma.com> schrieb im Newsbeitrag
news:OVM7Vaq4EHA.4072@TK2MSFTNGP10.phx.gbl...
I have only 1 DC. That is why I am asking. My 2 servers that are nodes
in
the cluster are not AD because I'm installing WUS on them which does not
go
on a server with AD. How do I cluster DNS???
"Rodney R. Fournier [MVP]" <rod@die.spam.die.nw-america.com> wrote in
message news:el6QVjl4EHA.1204@TK2MSFTNGP10.phx.gbl...
Great points, let me try and give my take on the matter...
"Ramon Jiménez" <rjimenezm.athome@my.hotmail.com> wrote in message
news:%23ayYkMl4EHA.2124@TK2MSFTNGP15.phx.gbl...
Although I fully agree with most of your statements I would like to
raise
the following concerns...
If I want to have high availability on DNS service...Why should I
rely
on
Domain controllers? I'd rather go with a dedicated DNS server without
the
overload of being a DC
Note I stated that having a Primary and Secondaries would also work -
those
could be UNIX boxes :) 99.999% of the installs would never benefit from
a
dedicated DNS server. The Root servers, ISPs, etc. yes, the rest of the
world, no way. Running on a DC in a Microsoft shop, is the way to go.
Once said that, and bearing in mind that a user could require
dedicated
DNS service (without) not dependant on DC's...what do not make
possible
( by default in MSCS) to clusterize DNS Service (as you can do with
DHCP)?
That way, the Primary Zone would have high availability...
Again why? AD integrated makes ALL the server Primaries for the zones.
Way
cool. UNIX does not have that. You want HA, use your DC's :) DNS
traffic
is
about 1% of all network traffic, it won't hurt your DC's.
I have always wondered why MS did not DNS clustering by
default...because
I agree that AD relies on DNS...but if your intention is only to
provide
with a reliable and highly available DNS service, why mandatory DC's?
My take, and this is 100% me here. 1) They don't want you too. They
want
and
firmly believe that AD integrated is the way to go, all primaries are
great
HA. 2) If you could cluster DNS, many would. Seems like a DUH right?
Nope,
cause those that did many not get greater value from clustering. Having
DC/DNS servers all over the place is a way better design for most. 3)
Additional product to support. MS already has to do a ton of DNS
support.
As
you know, everything needs DNS today, adding clustering to the mix
would
make more work for the DNS team, and to what end?
Just my 0.02 cents....and acting as devil lawyer...
Always buddy, these topics make us all think out of the box. Like I
tell
most of my MCT classes, in the world of Microsoft, if there is not 6
ways
to
something, it can't be done. If you already know 2 or 3, you are
missing
50%
of what is out there.
--
Saludos
Ramon
PMP, ITIL Certified
MCSE & MCSA 2000/2003, CCA
"Rodney R. Fournier [MVP]" <rod@die.spam.die.nw-america.com> wrote in
message news:%23c7QdHi4EHA.1264@TK2MSFTNGP12.phx.gbl...
Technically yes. Have I tried it, NO. Will I ever? NO way. Do I see
a
need to do this NO!
If you use Active Directory Integrated DNS, then each DC will have
DNS
and you are good to go. If you are not, you should have one or more
secondary copies (which you can click on and make primaries), so you
are
good to go.
I just don't see the business need to cluster DNS, when you other
supported choices.
Cheers,
Rod
MVP - Windows Server - Clustering
http://www.nw-america.com - Clustering
http://www.msmvps.com/clustering - Blog
"Nathan Guidry" <nguidry@jjma.com> wrote in message
news:Ope27zf4EHA.252@TK2MSFTNGP10.phx.gbl...
Is it possible to add DNS as a Generic Service to a Cluster group?
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Russ Kaufmann [MCT]
Guest
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| Posted:
Tue Dec 21, 2004 4:59 am Post subject:
Re: DNS as a Generic Cluster Service |
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"Nathan Guidry" <nguidry@jjma.com> wrote in message
news:OVM7Vaq4EHA.4072@TK2MSFTNGP10.phx.gbl...
| Quote: | I have only 1 DC. That is why I am asking. My 2 servers that are nodes in
the cluster are not AD because I'm installing WUS on them which does not
go
on a server with AD. How do I cluster DNS???
|
So, when your one DC goes down, so does your cluster and you lose
everything, right?
I am not trying to poke holes in your environment, but one DC just doesn't
cut it.
There is no "best practice" that I am aware of for clustering DNS. You can
get fault tolerance without clustering. |
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