Slow internet/DNS issue and SERVFAIL response using 10.6.4

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Slow internet/DNS issue and SERVFAIL response using 10.6.4

Internet is slow since upgrading the older intel-based macs to 10.6.4 and since I received this new iMac with Snow pre-loaded.

nslookup, > scutil --dns and > dig -t soa local all return the same result

;; Got SERVFAIL reply from 172.16.16.251, trying next server
;; Got SERVFAIL reply from 172.16.16.17, trying next server
Server: 172.16.16.254
Address: 172.16.16.254#53

We can't change our .local configuration and have tried everything else on the forum we could find. Any other solutions?

27" iMac late 2009, Mac OS X (10.6.4)

Posted on Jun 29, 2010 3:04 PM

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Dogcow-Moof

Level 8

36,239 points

Jun 29, 2010 7:52 PM in response to corinnemc

Not really.

Your local DNS server appears to be incorrectly configured, as it should be generating NXDOMAIN replies, not SERVFAIL.

Unfortunately, SERVFAIL responses tell DNS to try another DNS server, not just give up:

NOERROR NOERROR indicates that the domain does exist according to the root name servers and that the authoritative name servers are answering queries correctly for that domain.

SERVFAIL SERVFAIL means that the domain does exist and the root name servers have information on this domain, but that the authoritative name servers are not answering queries for this domain.

NXDOMAIN NXDOMAIN can means that the root name servers are not providing any authoritative name servers for this domain. This can be because the domain does not exist or that the domain is on-hold. Make sure that you use whois when you see an NXDOMAIN.

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