I am running Windows 2000 server v5.0, Svc. Pack 4.

My DNS event log is filling up with Event 5504. "The DNS server encountered an invalid domain name in a packet from 206.13.31.12. The packet is rejected. " I have seen some sites recommending that I turn off my DNS forwarding service. How do I do this and is it even advisable? If not what should I do?

In case anyone is interested, here is a dcdiag log:


DC Diagnosis

Performing initial setup:
Done gathering initial info.

Doing initial non skippeable tests

Testing server: Default-First-Site-Name\DOMAIN
Starting test: Connectivity
DOMAIN's server GUID DNS name could not be resolved to an
IP address. Check the DNS server, DHCP, server name, etc
Although the Guid DNS name

(4e4a1657-760e-4637-a5d5-63ca01e543a5._msdcs.KVCS.LOCAL) couldn't be

resolved, the server name (DOMAIN.KVCS.LOCAL) resolved to the IP

address (192.168.1.15) and was pingable. Check that the IP address is

registered correctly with the DNS server.
......................... DOMAIN failed test Connectivity

Doing primary tests

Testing server: Default-First-Site-Name\DOMAIN
Skipping all tests, because server DOMAIN is
not responding to directory service requests

Running enterprise tests on : KVCS.LOCAL
Starting test: Intersite
......................... KVCS.LOCAL passed test Intersite
Starting test: FsmoCheck
......................... KVCS.LOCAL passed test FsmoCheck

5504's are based on an illegal character. No undrescores, spaces, etc are
allowed. You'll have to find the offending machine that has that IP and
rename it.