system log fillling with dns related messages

Question

system log fillling with dns related messages

Hi,

My system.log is filling up with lots of this error message below. ("spenser" is hostname).

Anyone seen this before? Know how to stop it?

Thanks in advance for any help.

Rowan.

Dec 2 10:26:34 spenser mDNSResponder[16]: DNS Message too short
Dec 2 10:27:04: --- last message repeated 4 times ---
Dec 2 10:27:04 spenser mDNSResponder[16]: DNS Message too short
Dec 2 10:27:34: --- last message repeated 4 times ---
Dec 2 10:27:34 spenser mDNSResponder[16]: DNS Message too short
Dec 2 10:28:04: --- last message repeated 4 times ---

iMac Intel, Mac OS X (10.5.1)

Posted on Dec 1, 2007 4:22 PM

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Answer 1

Landi

Level 1

148 points

Dec 10, 2007 4:45 AM in response to Rowan McCammon

Yeah I'm getting it too.

Are you using Internet Sharing? That's the only "new" thing I'm doing that seemed to cause this message.

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Answer 2

Dec 12, 2007 11:36 AM in response to Landi

No. I'm not using Internet Sharing but thanks for responding.

My understanding to date is that this may be a Bonjour message.

I have a fairly simple wireless set-up. One wireless router with an HP Network Printer attached.

Two physical machines connect: iMac & iBook.

And one virtual - VMware Fusion Windows XP Home Edition.

Maybe it's the printer or VMWare causing the problem.

Do you have either of those components in your system?

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Answer 3

Dec 15, 2007 4:20 PM in response to Rowan McCammon

mDNSResponder is BonJour, it has nothing to do with DNS.

Roger

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Answer 4

Dec 15, 2007 6:31 PM in response to Community User

Thanks Roger.

mDNSResponder is logging this same error/warning message every 6 seconds when connected to my wireless network at home.

Do you know how I can stop this behaviour? Or what I can do to try (or who I can ask) to help diagnose the problem?

Rowan.

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Answer 5

Dec 16, 2007 9:06 AM in response to Community User

Bonjour is itself a DNS (technically, a component of DNS Service Discovery that uses multicast DNS) though it is not user-configurable in the sense that, say, BIND is.

The error message Bonjour is receiving is "DNS message too short." While I understand this may have little to do with a queryable DNS like BIND (though Bonjour is in fact a queryable DNS in an entirely different sense), Bonjour has everything to do with DNS.

That said, I will be the first to admit that my ignorance on this topic is vast.

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Answer 6

Dec 16, 2007 9:52 AM in response to Rowan McCammon

Rowan McCammon wrote:
Do you know how I can stop this behaviour? Or what I can do to try (or who I can ask) to help diagnose the problem?

<shrug> It's harmless... that's what logs are for... I'm surprised you think it bothers you.

Of course the correct answer is to figure out what other machine is sending the bum zeroconf messages.

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