On Sat, Oct 30, 2010 at 7:10 PM, Martin Blackstone <[email protected]> wrote: > When one of the servers is down DNS becomes totally unreachable until they > are both available. So two DC’s both hosting DNS. Shut down one, and the > other stops serving DNS and DHCP.
Anything in the logs of either DC or the clients? If you try doing a DNS query with NSLOOKUP to the IP address of the unresponsive DC, do you get a response? What's the local DNS topology look like? Try a network sniffer, filtering on UDP ports 53, 66, and 67. -- Ben ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected] with the body: unsubscribe ntsysadmin
