DNS SUFFIX ENTRIES IN SEARCH ORDER


E

Eldingo

Hello All:

I need to add a new string in DNS search order, can someone please tell me
how to add a new DNS suffix to DNS search order via DHCP. I need to push
this to all of our client. I am trying to do this on a Windows Server 2003.

Thansk.
 
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J

J de Boyne Pollard

E> can someone please tell me how to add a new
E> DNS suffix to DNS search order via DHCP.

No.

E> I need to push this to all of our client.

Tough. It's not possible. Option 119 can be set on the DHCP server,
but it's largely ignored by most Microsoft DHCP clients. They only
respect option 15. This task cannot be done with DHCP. So put down
the chocolate-covered banana and step away from the European currency
systems. Pick up a group policy, instead.
 
A

Ace Fekay [MCT]

J de Boyne Pollard said:
E> can someone please tell me how to add a new
E> DNS suffix to DNS search order via DHCP.

No.

E> I need to push this to all of our client.

Tough. It's not possible. Option 119 can be set on the DHCP server,
but it's largely ignored by most Microsoft DHCP clients. They only
respect option 15. This task cannot be done with DHCP. So put down
the chocolate-covered banana and step away from the European currency
systems. Pick up a group policy, instead.

Option 015 does give the Connection Specific suffix, however I agree the
group policy option is better.

The following article should help.

Configure the DNS Suffix Search List for a Disjoint Namespace ...You can use
the Group Policy Management console (GPMC) to configure the Domain Name
System (DNS) suffix search list. In some Microsoft Exchange Server 2007 ...
http://technet.microsoft.com/en-us/library/bb847901.aspx

Ace
 
J

J de Boyne Pollard

AF> The following article should help.

Dat's der bunny, as they say. There's also MSKB Q275553.

Of course, in classic left-hand-doesn't-know-what-the-right-hand-is-
doing style, the Microsoft Office Communications Server people don't
know that this DHCP option doesn't actually work, or are just assuming
that it's a defect in Microsoft's DHCP client that's going to be
fixed, and document it as the official mechanism for doing this:

<URL:http://technet.microsoft.com/en-us/library/dd572752(office.
13).aspx>

It *is* a defect that needs fixing, of course. ISC's DHCP client has
supported this option since version 3.1.0. It's also supported by the
MacOS 10.5 DHCP client. So recent releases of MacOS 10 and of most
Linux distributions have this functionality. But Microsoft's
operating systems do not. The RFC documenting this option has been
around for seven years, and was co-authored by Bernard Aboba of
Microsoft.
 
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A

Ace Fekay [MCT]

J de Boyne Pollard said:
AF> The following article should help.

Dat's der bunny, as they say. There's also MSKB Q275553.

Of course, in classic left-hand-doesn't-know-what-the-right-hand-is-
doing style, the Microsoft Office Communications Server people don't
know that this DHCP option doesn't actually work, or are just assuming
that it's a defect in Microsoft's DHCP client that's going to be
fixed, and document it as the official mechanism for doing this:

<URL:http://technet.microsoft.com/en-us/library/dd572752(office.
13).aspx>

It *is* a defect that needs fixing, of course. ISC's DHCP client has
supported this option since version 3.1.0. It's also supported by the
MacOS 10.5 DHCP client. So recent releases of MacOS 10 and of most
Linux distributions have this functionality. But Microsoft's
operating systems do not. The RFC documenting this option has been
around for seven years, and was co-authored by Bernard Aboba of
Microsoft.

I haven't tried it, so I can't comment on it. But the GPO works nicely in a
domain scenario with Windows clients. There must have been a reason Option
119 functionality was left out.

Ace
 

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