Guest swu30@hotmail.com Posted October 17, 2007 Posted October 17, 2007 I've searched around it seems W2K Server has issues with its DNS cache. I have two W2K servers running AD + DNS/DHCP/WINS. They will occasionally stop resolving external DNS queries, this does not seem load related, but I could be wrong. They do not stop at the same time, and one server may stop more than the other. What stops is the ability to resolve internet names, even if they are in the cache. Resolving for internal resources continues to work fine while resolving for external names fails. The outage may last from a few seconds to a few minutes. While the outage is occuring, I can be right on the DNS server and do nslookups for something on the outside and I will get "request timed out" errors. Even though the entry is in the cache. Without doing anything else, DNS will "come back" and resolve just fine. The quick fix is to clear the DNS cache from the DNS GUI. W2k Server SP4 patched according to Windows Upate. Is there a fix for this? I've heard W2K3 has a much improved DNS server. So my thought is to build a W2K3 server just for DNS and point everyone (after testing) to it as the primary, and then one of the W2K servers for secondary. I'd rather not put up another box, but if there is no fix for W2K, then I'll go for the stability. Thx for any advice or tips!
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