bind9 strange logging what does it mean?

[Thomas Drottvik]

Hi

I'm pretty new to bind and bind9 ....
I have installed Bind 9.1.0 and I get some strange logging it seems
to me that some dynamic "stuff" is trying to update or do something? 
This machine is just a clean DNS server nothing else.
No dhcp-service is provided or any DDNS.

I get this in my syslog-file:

Feb 28 18:12:17 ns1 /usr/local/sbin/named[9801]: client
63.207.84.6#1113:update denied
Feb 28 18:23:31 ns1 /usr/local/sbin/named[9801]: dynamic update
failed:'RRset exists (value dependent)' prerequisite not satisfied (NXRRSET)

****snip*********
Feb 25 04:43:46 ns1 /usr/local/sbin/named[13328]: client
165.121.199.78#2699: update denied
Feb 25 04:58:13 ns1 /usr/local/sbin/named[13328]: client
195.184.33.51#13256: update denied
Feb 25 04:58:13 ns1 /usr/local/sbin/named[13328]: client
195.184.33.51#13257: update denied
Feb 25 05:43:51 ns1 /usr/local/sbin/named[13328]: dynamic update failed:
'RRset exists (value dependent)' prerequisite not satisfied (NXRRSET)
****snip*********

Need help... hope this list can give me some help....



//Thomas Drottvik