Hi I have followed the article http://support.microsoft.com/kb/318803 and made the changes to the registry so that resolved DNS names are not cached on the server. If I do a ipconfig /displaydns all I see are entries for localhost.
If I ping the FQDN I get the correct resolved address. If I ping just the netbios name of the machine I get the wrong IP address returned. I have checked my WINS server and DNS servers and they have recorded the correct IP address of my laptop connected over the VPN. What else on the server could be caching the Netbios name of my laptop. I did a nbtstat -R but that made no difference. Really looking for help on this if you or anyone else have anything else to suggest. Kevan Dickinson Network Manager NSF-CMI 23 Lodge Road Hanborough Business Park, Long Hanborough, Oxford, OX29 8SJ, UK T:+44 01993 885661 E:[email protected] W:www.nsf-cmi.com -----Original Message----- From: Steph Balog [mailto:[email protected]] Sent: 28 February 2009 11:38 To: NT System Admin Issues Subject: RE: DNS / WINS Issue? Ahhh, (i see say the blind man as he tripped over is cane and saw) ;-) You issue isnt really sql at all, nor is it dns so much. You are a victim of one of MS's better TCP/IP stack designs (no really, it is a better design). MS did a great thing is the use of caches when it does its network lookups, it ALWAYS looks at the cache first. Simply flushing the DNS cache won't get rid of your issue, you need to tell those clients not to keep that info cached for so long. You can first try to stop your dnscache doing a net stop dnscache and then try to recreate your problem. You need your dns client running though so you will need to hack the registry of the client and set down the maxpositive TTL and maxmegtive TTL (time to live) values. Default for positive is like a day (measured in seconds) and default value for negative reponse is 15 mins. All that can be found here http://support.microsoft.com/kb/318803 Good luck! ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ ******************************************************************************** ***Disclaimer*** The contents of this Email may be privileged and are confidential. If you are not the intended recipient, any disclosure, copying, distribution or any action taken or omitted to be taken in reliance on it, is prohibited and may be unlawful. Should you wish to use Email as a mode of communication, NSF-CMi Ltd and its subsidiaries are unable to guarantee the security of Email content outside of our own computer systems. This footnote also confirms that this Email message has been checked by MailMarshal for the presence of computer viruses. Whilst we run anti-virus software, you are solely responsible for ensuring that any Email or attachment you receive is virus free. We disclaim any liability for any damage you suffer as a consequence of receiving any virus. NSF-CMi Ltd Registered in England No: 1899857 Registered Office 4th Floor, 35 New Bridge Street, London, EC4V 6BW ********************************************************************************** ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~
