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10.5: Disable DHCP-specified DNS servers
Authored by: hamarkus on Jul 31, '08 08:40:11AM

As side-note, I recently changed employment and are now at work behind a rather limiting firewall. At first I still had the DNS servers of my old work place (a university which also hosts the regional internet backbone) noted down as DNS servers. Resolving any address took ages, ie, 10 to 15 seconds with no activity. Once I removed the DNS entries, things went back to normal.

My explanation was that the OS first tried to contact the listed DNS servers but those were blocked by the firewall. After 10 seconds, the OS gave up and asked the DHCP server for another DNS server.

So, from that I would conclude that listed DNS servers take preference, but maybe my guess of what caused the delays is also wrong.

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P.S.: I'm on 10.5
Authored by: hamarkus on Jul 31, '08 08:41:29AM

(I should have added that.)

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