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I have a windows 2008 system and it always keep ::1 in first of the dns setting.

I can see the following in "ipconfig /all":

DNS Servers . . . . . . . . . . . . : ::1

and "Obtain dns server address automatically" option in network interface setting is disabled.

I installed active directory once and uninstalled now, I think it's the reason.

But I can't find any answer from google or bing how to fix.

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Did you try removing it from the list of DNS servers? – Michael Hampton Jun 9 '14 at 0:37
I can't find any way to remove it, I can remove and but then DNS Servers only show ::1. – user3085220 Jun 9 '14 at 0:49
It's an IPv6 address, you have to remove it from the list of IPv6 DNS servers, not the IPv4 list. – Michael Hampton Jun 9 '14 at 0:50
Ok, thank you! I can removed it now, can you reply and let me mask your answer? It's a fool question but hard to find some information from google. – user3085220 Jun 9 '14 at 0:53
up vote 3 down vote accepted

::1 is an IPv6 address, so you have to remove it from the list of IPv6 DNS servers, not the IPv4 list. Windows unfortunately keeps two separate lists...

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