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Fix a DNS resolution failure
Authored by: JuanCab on Dec 21, '09 12:08:16PM
I had this same problem after upgrading my MacBook Pro to Snow Leopard (but not by Mac Pro or iMac). I determined that using the campus' DNS server (which is BIND) caused the DNS resolution to go wonky seemingly at random. Pointing to OpenDNS DNS servers fixed the problem on the laptop. I did report this to Apple and even after escalating it several stages and running Apple's diagnostic software for them to collect data from my machine, we could not find the root cause. I suspect some incompatibility between some version of BIND and how Snow Leopard does its DNS caching. See more details on the error in my blog post (look at the section on "Ethernet Issues").

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