Monday, August 17, 2015

domain name system - DNS CNAME Record windows 2003 R2 server by IP address



I am trying to add a CNAME record to point to an ip address. I have added the CNAME record to the primary DNS server that looks like this:



foobar Alias(CNAME) 192.168.50.11



I restarted the DNS server service. When I ping the new name I get the following:




+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++



ping foobar



Pinging 192.168.50.11 [67.215.75.132] with 32 bytes of data:



Request timed out.



Request timed out.




Request timed out.



Request timed out.



Ping statistics for 67.215.75.132:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++



I have no idea where it is getting the 67.215.75.132 address.




nslookup returns:



+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++



nslookup foobar



Server: 1server



Address: 192.168.10.10




Name: 192.168.50.11



Address: 67.215.75.132



Aliases: foobar



+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++



1server is the machine with the DNS server service.



Answer



You should set a CNAME to point to the host name defined in the ADDRESS (A) record of the target host instead of the IP. So whatever hostname 192.168.50.11 is is what goes in the record, not the IP.



foobar Alias(CNAME) targetmachine


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