Prior to performing any installation, confirm that the hostname and fully qualified domain name are reachable from the CommCell network, and that the IP addresses and host names resolve correctly by the DNS.
Computers in a network use the DNS to determine the IP address associated with a host/domain name. This process is also known as forward DNS resolution. Reverse DNS lookup is the inverse process (that is, resolving an IP address to its associated host/domain name). For network communication to work reliably and efficiently, forward DNS and reverse DNS resolution must work correctly. If reverse DNS lookup is not enabled on a client computer, it will not be able to communicate with the remote computer using its host name.
Use the following procedure to perform a reverse lookup on an IP address:
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Log on to the client computer as an Administrator.
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Click Start, and then click Run.
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In the Open box, type cmd, and then click OK.
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From the command prompt, run:
nslookup remote_computer_ip_address
Example:
C:\>nslookup 172.16.1.244
Server: ingpdc01.gp.cv.company.com
Address: 172.16.2.27
Name: faraday.gp.cv.company.com
Address: 172.16.1.244
In the above example, the first two lines returned show the server that provided the domain name, and that server's IP address. The next two lines shows the host name associated with the IP address that you passed to nslookup, and that host's IP address.
If the DNS service is not running on the setup, the above command returns one of the following error messages:
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No Response from Server -
Timed Out -
No Records -
Server Failure