Event 3150

  • Thread starter Thread starter JC
  • Start date Start date
J

JC

anyone knows what controls the frequency in which DNS writes its memory
contents to disk ?
I'm getting this event every 5 minutes. Wierd thing is the version number
doesn't change.
 
In
JC said:
anyone knows what controls the frequency in which DNS writes its
memory contents to disk ?
I'm getting this event every 5 minutes. Wierd thing is the version
number doesn't change.
Click to expand...

See if this helps. But there is nor real explanation, unless someone else
may make a suggestion:

http://www.eventid.net/display.asp?eventid=3150&source=

I get them, but they are due to actual zone transfers.

Do you have secondaries configured from your primary or AD Integrated zones?


--
Regards,
Ace

Please direct all replies to the newsgroup so all can benefit.

Ace Fekay, MCSE 2000, MCSE+I, MCSA, MCT, MVP
Microsoft Windows MVP - Active Directory
 
Mr Ace,
you're right - not much beef in that document.
There are secondaries set up for the zones, but note that the errors happen
on the master server, not on the slaves.

"Ace Fekay [MVP]"
 
In
JC said:
Mr Ace,
you're right - not much beef in that document.
There are secondaries set up for the zones, but note that the errors
happen on the master server, not on the slaves.
Click to expand...

Actually they're informational and not "errors" since they are not the red
X's. I get them all the time, as I mentioned. I get many, but then again, I
have 25+ zones. I guess you can adjust some of the settings under the
Advanced tab to lessen the informational messages, such as TTLs, Retry
times, etc.

Unless you're saying they are coming up with Red X's?


--
Regards,
Ace

Please direct all replies to the newsgroup so all can benefit.

Ace Fekay, MCSE 2000, MCSE+I, MCSA, MCT, MVP
Microsoft Windows MVP - Active Directory
 
Ace,
they're not erross. I get them every 5 minutes - that looks abnormal to me.

"Ace Fekay [MVP]"
 
In
JC said:
Ace,
they're not erross. I get them every 5 minutes - that looks abnormal
to me.
Click to expand...

As I mentioned, you can change your settings for each zone. My "Minimum TTL"
and "TTL for this Record" are set to one hour instead of the default 5
minutes. So I get those informational messages every hour instead of every 5
minutes.

Cheers!

--
Regards,
Ace

Please direct all replies to the newsgroup so all can benefit.

Ace Fekay, MCSE 2000, MCSE+I, MCSA, MCT, MVP
Microsoft Windows MVP - Active Directory
 
In
Ace Fekay said:
In

As I mentioned, you can change your settings for each zone. My
"Minimum TTL" and "TTL for this Record" are set to one hour instead
of the default 5 minutes. So I get those informational messages every
hour instead of every 5 minutes.
Click to expand...

Sorry JC, misinformed you on this. If you check each 3150 entry, you should
see the version number changed. It's just notifying when the version
changes, that it wrote it to the .dns file. Now I see my 3150's every hour
since Netlogon is registering normally in Win2000 every 60 minutes, which is
default and normal, hence why I see it every 60 minutes.

You can squelch this loggin level by a reg entry, if you like. Check the
"LogLevel" section in this article. I would suggest to set it to 2 to just
log errors and warnings:
198408 - Microsoft DNS Server Registry Parameters, Part 1 of 3:
http://support.microsoft.com/?id=198408

Hope this helps you out.
 
Ace,
the version number is the same - it does not change.
I understand the part about LogLevel - I'm against changing to 2 , at least
until i understand the reason the zone is getting written to disk so often.

"Ace Fekay [MVP]"
 
In
JC said:
Ace,
the version number is the same - it does not change.
I understand the part about LogLevel - I'm against changing to 2 , at
least until i understand the reason the zone is getting written to
disk so often.
Click to expand...

JC, What zone is it, a reverse or a forward zone?

Do you have a Root zone configured?
http://www.microsoft.com/windows200...erver/help/sag_DNS_add_ServerLogReference.htm

Are you also getting ID 9999's? Is the zone AD Integrated or Primary?

I' also trying to find out more info from our private MVP groups to get a
better response and your extra info will help.

--
Regards,
Ace

Please direct all replies to the newsgroup so all can benefit.

Ace Fekay, MCSE 2000, MCSE+I, MCSA, MCT, MVP
Microsoft Windows MVP - Active Directory
 
Ace,
To answer your questoins:
- I see them on the forward zone, which is not ADI.
- I see no 9999 events.

Let me tell you what I found out last week.
Last Friday I saved a before and after copy of the zone file then compared
them.
Looks like the only difference between them was the placement of the 'A'
records for some DCs. In the 'after' zone file, they were at the beginning
of the "A records section", whereas in the 'before' zone file they were
somewhere in the middle of the file.
Did some reading about dynamic registration (from a non-MS book I must say).
Turns out there's a registry entry under tcpip/parameters called
DisableReplaceAddressesInConflicts which basically says that if enabled, a
w2k host will issue an update delete, then an update add request for it's
'A' and "PTR' records (essentially ignoring the results of the dynamic
pre-req query).
This must be what's causing all these events - everytime a host
re-registers, it's updating the zone file , even though it's 'A' and PTR
records are already there.
If I'm right, what's still bothering me is the version number not changing.
What do you think? Is MS DNS smart enough to realize that the zone is
really not changing therefore not chaning the serial number? .

By the way, when a DC tries to register its SRV records, does it also do a
pre-req check before adding them? I'd think it'd check and NOT go thru the
registration if the records are already in DNS. Can you verify? Where is
the SRV registration process documented in detail ?



"Ace Fekay [MVP]"
 
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