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I have a Windows Server 2008 R2 with single network adapter. For this adapter I created two IP addresses and registered DNS aliases for each one: => =>

The server itself is included in domain as (i.e. domain is

Then I created a shared folder with Read/Write permissions to Everyone.

I can access both shares via IP addresses. I can access both shares via DNS-aliases from outside of the server.
But when I try to access shares via DNS-aliases (\\\myshare) from inside of the server then I'm prompted for credentials.

How to fix this?

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Have you tried it by turning off the firewall? Where did you register the DNS addresses (domain DNS?), and what type of environment are you in? Is the server on a domain? How are you logging in? To a domain or to your local computer? – KCotreau Jul 21 '11 at 11:35
@KCotreau, I've updated the Q with details. – Shrike Jul 21 '11 at 12:11
What are the server's DNS entries, same server or a different one? If on the same server are they set to the IP (recommended by Microsoft), or to the loopback ( Can you browse to the share and does it still request credentials? I have to say, this is a strange one. – KCotreau Jul 21 '11 at 13:40
@KCotreau, sorry, but I don't fully understand what do you mean by "server's DNS entries: same server or a different one". I asked our administrators to create DNS names for particular IP-addresses (one-to-one). DNS entites are made not on the server itself, but somewhere in domain. So they should point to the IP. I can check this by "nslookup" tool: "nslookup" return "". – Shrike Jul 21 '11 at 14:01
Same server, network properties>the LAN connection>TCP/IP properties, what are the settings for the DNS server? Is the DNS server on the same server we are talking about or on another one? – KCotreau Jul 21 '11 at 14:07

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