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How many ways to timestamp a DNS record

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Vieux 03/01/2007, 21h06   #1
JimyJohn
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Par défaut How many ways to timestamp a DNS record

Looking at serval of our customer domains (all ADI 2003) that have Scavenging
turned off, I see most all records have recent time stamps. Therefor I tend
to conclude;

1. All DDNS updates time stamp records (by default) regardless of whether
scavenging is turned on or not.

2. All DHCP'd clients will have thier DNS records time stamped(by default)
via DHCP cause it uses DDNS.

3. After Scavenging is turned on, in ADI-DNS, all records (manual too) added
will have time stamps according to when they were added, but will only be
scavenged if the box is checked.

4. Really, all records in ADI-DNS have a time stamp, but the ones with
timestamp dated 1/1/1601 are considered not to be timestamped.

Are these valid points? Thanks.
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Vieux 05/01/2007, 02h49   #2
Kevin D. Goodknecht Sr. [MVP]
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Par défaut Re: How many ways to timestamp a DNS record

JimyJohn wrote:
> Looking at serval of our customer domains (all ADI 2003) that have
> Scavenging turned off, I see most all records have recent time
> stamps. Therefor I tend to conclude;
>
> 1. All DDNS updates time stamp records (by default) regardless of
> whether scavenging is turned on or not.


Yes.

>
> 2. All DHCP'd clients will have thier DNS records time stamped(by
> default) via DHCP cause it uses DDNS.


Yes.

>
> 3. After Scavenging is turned on, in ADI-DNS, all records (manual
> too) added will have time stamps according to when they were added,
> but will only be scavenged if the box is checked.


If you simply enable scavenging, no time stamps are changed, and records
that have been set to be deleted when they become stale will have the time
stmp of the last time they were updated. Manual records that did not have
the box checked will not get a time stamp in the GUI, but dnscmd will show
the time stamp in hours 0 ([ 0: 0: 0] [ 1/ 1/1601])

>
> 4. Really, all records in ADI-DNS have a time stamp, but the ones with
> timestamp dated 1/1/1601 are considered not to be timestamped.
>
> Are these valid points? Thanks.


Pretty much but mostly trivial.

--
Best regards,
Kevin D. Goodknecht Sr. [MVP]
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Vieux 05/01/2007, 19h41   #3
JimyJohn
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Par défaut Re: How many ways to timestamp a DNS record

Kevin,

Thanks for your answers, the are very ful.
A couple more questions;

1. For clients with fixed IP addresses, say member servers, where the DHCP
client service is performing the DDNS updates, how often does it perform the
updates?

2. For devices with fixed IP addresses, say printers, that have thier
addresses registered as "Reserved" in DHCP, is their any process provided by
DHCP to perform DDNS updates and if so how often does it happen?

Best regards,
John


"Kevin D. Goodknecht Sr. [MVP]" wrote:

> JimyJohn wrote:
> > Looking at serval of our customer domains (all ADI 2003) that have
> > Scavenging turned off, I see most all records have recent time
> > stamps. Therefor I tend to conclude;
> >
> > 1. All DDNS updates time stamp records (by default) regardless of
> > whether scavenging is turned on or not.

>
> Yes.
>
> >
> > 2. All DHCP'd clients will have thier DNS records time stamped(by
> > default) via DHCP cause it uses DDNS.

>
> Yes.
>
> >
> > 3. After Scavenging is turned on, in ADI-DNS, all records (manual
> > too) added will have time stamps according to when they were added,
> > but will only be scavenged if the box is checked.

>
> If you simply enable scavenging, no time stamps are changed, and records
> that have been set to be deleted when they become stale will have the time
> stmp of the last time they were updated. Manual records that did not have
> the box checked will not get a time stamp in the GUI, but dnscmd will show
> the time stamp in hours 0 ([ 0: 0: 0] [ 1/ 1/1601])
>
> >
> > 4. Really, all records in ADI-DNS have a time stamp, but the ones with
> > timestamp dated 1/1/1601 are considered not to be timestamped.
> >
> > Are these valid points? Thanks.

>
> Pretty much but mostly trivial.
>
> --
> Best regards,
> Kevin D. Goodknecht Sr. [MVP]
> Hope This s
> ===================================
> When responding to posts, please "Reply to Group"
> via your newsreader so that others may learn and
> benefit from your issue, to respond directly to
> me remove the nospam. from my email address.
> ===================================
> http://www.lonestaramerica.com/
> http://support.wftx.us/
> http://message.wftx.us/
> ===================================
> Use Outlook Express?... Get OE_Quotefix:
> It will strip signature out and more
> http://home.in.tum.de/~jain/software/oe-quotefix/
> ===================================
> Keep a back up of your OE settings and folders
> with OEBackup:
> http://www.oe.com/OEBackup/Default.aspx
> ===================================
>
>
>

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