Date: Thu, 18 Jul 2002 12:18:35 -0400 From: Forsetti <matt@forsetti.com> To: Ross Lippert <ripper@eskimo.com> Cc: vetter_david@sbcglobal.net, steve@velosystems.net, freebsd-questions@FreeBSD.ORG Subject: Re: MS Dynamic DNS problems Message-ID: <3D36EA5B.2070407@forsetti.com> References: <200207181550.IAA27294@eskimo.com>
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Are you using a special Dynamic DNS update client, or relying on some
functionality in dhclient? Is the DHCP server a MS DHCP server, that
could update AD/DNS for you? It seems from your ping that the DNS entry
which your Win2k side registers lingers for a little while, long enough
for you to reboot into FreeBSD. On Win2k shutdown, the address is
de-registered (unless configured differently) from DDNS, so unless you
are using a DDNS update client to re-register on the FreeBSD side, the
registration won't work for too long. But the deregistration can take a
few minutes, depending on how busy the server is, so you might get
response from your entry for a few minutes after Win2k shutdown.
-Matt
Ross Lippert wrote:
>OK, here is /etc/resolv.conf:
>search celera.com ad.celera.com rkv.ad.celera.com rkv.celera.com applera.com pe-c.com ssf.ad.celera.com fc.celera.com
>nameserver 172.20.7.10
>nameserver 172.20.7.11
>
>The search line there appears to be the result of adding a supercede
>line to the dhclient.conf, which is as follows:
>interface "ep0" {
> supersede domain-name "celera.com ad.celera.com rkv.ad.celera.com rkv.celera.com applera.com pe-c.com ssf.ad.celera.com fc.celera.com";
> request subnet-mask, broadcast-address, time-offset, routers,
> domain-name, domain-name-servers, host-name;
>}
>
>The above contents are just a total guess based on what the
>Win-support person seemed to be doing.
>
>I visited the win2k side again, to check my name list and so forth,
>and did
>CMD> ipconfig /all
>The primary name is lipperra-p1, and the connection specific one is
>rkv.ad.celera.com.
>
>I am not sure if that is reflected in my resolv.conf or my dhclient.conf.
>
>Finally, on the boot back to FreeBSD, I ran a ping from my desktop machine
>and watched the disappearance from DNS:
> cglwadministrator@LIPPERRA-W1 ~
> $ ping lipperra-p1.rkv.ad.celera.com
>
> Pinging lipperra-p1.rkv.ad.celera.com [172.20.168.104] with 32 bytes of data:
> Reply from 172.20.168.104: bytes=32 time<10ms TTL=128
> Request timed out.
> Request timed out.
> Reply from 172.20.168.104: bytes=32 time<10ms TTL=64
> Request timed out.
>
> cglwadministrator@LIPPERRA-W1 ~
> $ ping lipperra-p1.rkv.ad.celera.com
> Bad IP address lipperra-p1.rkv.ad.celera.com.
>
>which may be of interest because it shows the DNS entry being persistent
>right up until just after FreeBSD's dhclient starts, and then the DNS
>entry disappears.
>
>-r
>
>
>
>>From: "David" <vetter_david@sbcglobal.net>
>>To: "Ross Lippert" <ripper@eskimo.com>, <steve@velosystems.net>
>>Cc: <freebsd-questions@freebsd.org>
>>References: <200207181507.IAA24424@eskimo.com>
>>Subject: Re: MS Dynamic DNS problems
>>Date: Thu, 18 Jul 2002 08:11:59 -0700
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>>
>>----- Original Message -----
>>
>>
>>>Thanks for the quick reply, Steve.
>>>
>>>I suspect that since they were about to modify my laptop's win2k install
>>>so that it started showing up in DNS, that there must be something doable
>>>on the client-side alone, if only I knew what that was.
>>>
>>>I have since rebooted to win2k to look at the configuration panel that was
>>>changed to get the fix. It is the "advanced" popup under the DNS tab in
>>>
>>>
>>the
>>
>>
>>>TCP/IP properties (gosh why can't people just use directories).
>>>
>>>The suffix list used to be empty, and unchecked, and now it is
>>>populated and checked, as previously described. Secondly, I have
>>>noticed a checkbox at the bottom of this panel of the form "use suffix
>>>in registration" which might have also been checked during the fix.
>>>
>>>While win2k was up, I was able to ping the laptop. Then I rebooted to
>>>FreeBSD (getting the same IP addr from DHCP) and pinged again and my DNS
>>>entry had disappeared, no ping. Though pings by raw IP addr work fine.
>>>
>>>
>>>
>>There are a couple palces in your /etc directory you may want to look.
>>
>>For example, the settings you indicate they added are usually stored in the
>>/etc/resolv.conf file. Make sure you have the proper domain specified
>>there. Also make sure your fully-qualified domain name includes the
>>appropriate domain, and the same name as the Win2k side of your machine.
>>
>>David
>>
>>
>>
>>
>>
>
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