In order to check the DNS functionality using the nslookup command

please look at the example and the short explanation.

1. from the command prompt write the command:

    [root@eran /root]# nslookup

    You will get a response similar to:

    Default Server: gold.sphera.com

    Address: 172.16.1.231

    Which is the default DNS server of the machine.

2. Then write the command: server [IP of Domain Director]

    > server 172.16.1.84

    The response will be something like:

    Default Server: [172.16.1.84]

    Address: 172.16.1.84

    Now - as we know the Domain Director is the DNS server of the Sphera

    so the VDS's which are located on a Sphera which is connected to the cluster with

    this Domain Director should resolve.

3. Enter a domain name of a VDS which should be resolving you will get something like:

    > eran1.com

    Server: [172.16.1.84]

    Address: 172.16.1.84

    Name: eran1.com

    Address: 172.16.156.20

    Which means that the Domain Director has recognized the domain you have entered,

    and replied with the IP of that VDS.