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I am getting inconsistent name resolution locally with DNS

I have 3 2012 Standard servers and some weirdness on 1.

It is a standard install with IIS role added.

TEST01 is a dev server. 192.119.1.220 with a host header of TEST01.

DATA01 runs internal DNS on .240 and all servers and clients point here for DNS. There is a forward in DNS to 192.119.1.1 (router) with ISP external DNS #s mapped.

if I ping TEST01 from a non AD machine, it I get "Could not find Host TEST01"

If I ping TEST01 from a domain machine(another server), it resolves the IP but does not respond.

if I ping TEST01.AD.local, DNS resolves the IP, but times out.

I can access IIS by entering http://test.WWWDOMAIN.com and I can RDP to it, just not ping.

Any idea where I should start?

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1 Answer 1

You can't ping because Windows firewall is blocking ICMP. Allow ICMP if you'd like it to respond to pings.

Your non-domain joined computer can't reach it by the short name, because your domain-joined machines are automatically appending their suffix to queries. You can manually configure search suffixes in the network adapter's properties if you'd like.

All of this is working as expected.

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1  
When there's somethin' strange... in the neighborhood... who ya' gonna call... @MDMarra –  Ryan Ries Jul 3 '13 at 2:33
    
Actually the non-joined computer can see and ping the other 2 servers by the short name as well as the IP. –  user1431356 Jul 3 '13 at 3:15
1  
Then why did you say "if I ping TEST01 from a non AD machine, it I get "Could not find Host TEST01" ? –  Ryan Ries Jul 3 '13 at 3:18
    
Because I can't, but APP01 and DATA01 work fine. –  user1431356 Jul 3 '13 at 5:06
    
Well, I went back in after taking a break and its all responding normally again except for the sortname I created for TEST01 as "test". now I also have a shortname on DATA01 called "intranet" that works. I am wondering if there is another cache I need to clear other than flushing dns and restarting the DNS service. –  user1431356 Jul 3 '13 at 5:54

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