DNS related errors on Exchange

Hi

I'm running Exchange 2007 SP2 on Windows 2008 Server. We use a UNIX based DNS system.

I have a couple of Exchange clusters - SCC - Active/Active/Passive.

On each of them, within the System Log, I see the following errors:

Error - Event ID 1196 - Failover Clustering
Cluster network name resource "Network name (Exch1SCC)" failed registration of one or more associated DNS names for the following reasons:
DNS signature failed to verify"

And

Warning - Event ID 1119 - Failover Clustering
Cluster network name resource "Network name (Exch1SCC)" failed to register DNS name Exch1SCC.domain.com over adaptor NIC1 for the following reason
DNS Signature failed to verify"

However, the servers themselves seem to be working fine.

Can anyone shed any light?
chuckp2010Asked:
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craig_j_LawrenceConnect With a Mentor Commented:
Does your Unix DNS system allow dynamic DNS? if not the warning is mostly caused by that fact. you can disable the dns registration on the network adapter that this cluster resource is using:

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chuckp2010Author Commented:
Hi Craig

Thanks, so this won't actually cause a problem long term?

Also, question - how does register this connection's address in DNS tie in with the ipconfig/registerdns command? Do they effectively do the same thing? Does the UNIX system have to support Dynamic DNS in order to run ipconfig/registerdns? If not, can we just run /registerdns to fix this problem?
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JokingConnect With a Mentor Commented:
/registerdns requires dynamic DNS support to work. That is a dynamic registration.
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craig_j_LawrenceCommented:
Hi Chuck

ipconfig /registerdns is just the manual way to undertake the same task. The DNS server must support dynamic registration to support either method of registering DNS records. If not, you must manually add DNS entries to your DNS system
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