system.log errors

[Zoron Tacker]

 Hi,

I am getting the below errors in 10.4.9 system.log.

"
Jun 28 10:15:55 MYSERVER mDNSResponder: Adding browse domain local.
Jun 28 10:15:59 MYSERVER mDNSResponder: Update
_kerberos._tcp.MYSERVER.XXX.XX.XXXXX. refused
Jun 28 10:15:59 MYSERVER mDNSResponder: Registration of record
_kerberos._tcp.MYSERVER.XXX.XX.XXXXX. type 33 failed with error -65553
Jun 28 10:15:59 MYSERVER mDNSResponder: Update
_kerberos._udp.MYSERVER.XXX.XX.XXXXX. refused
Jun 28 10:15:59 MYSERVER mDNSResponder: Registration of record
_kerberos._udp.MYSERVER.XXX.XX.XXXXX. type 33 failed with error -65553
Jun 28 10:15:59 MYSERVER mDNSResponder: ERROR: Only name server claiming
responsibility for "_kerberos.MYSERVER." is "."!
Jun 28 10:16:00 MYSERVER /usr/sbin/serialnumberd[247]: serialnumberd:
Firewall rule #1 added to allow port 626.
Jun 28 10:16:04 MYSERVER /usr/sbin/serveradmin: servermgr_ipfilter:ipfw
config:Notice:Disabled firewall
Jun 28 10:45:50 MYSERVER servermgrd: servermgr_dns: hostname and DNS entries
for this server are synchronized
"
Is this something I need to worry about?

Thanks for any help.
Regan.