topic ONTAP is unable to contact the name server in ONTAP Discussions

ONTAP is unable to contact the name server

prawin — Wed, 30 Sep 2020 19:42:40 GMT

vserver services name-service dns create -vserver vs1 -domains <my-domain-name> -timeout 2 -attempts 1 -name-servers <my-IP-address>

I have got the below error while I executed the above command. What is the reason for it? Please help. Urgent!!

Error: command failed: Failed to verify the specified DNS configuration.
<my IP address>: Network is unreachable.
Verify that the network configuration is correct and that DNS servers
are available. Specify "-skip-config-validation" to skip the
configuration validation.

Re: ONTAP is unable to contact the name server

scottgelb — Wed, 30 Sep 2020 19:56:16 GMT

It is likely a network issue or routing issue... is the dns server or gateway available with "network ping -lif lif-name -vserver svm_name -destination gw-or-dnsserver" ...also check "net route show" to make sure there is an outbound route for the SVM but probably there is one.. ONTAP checks for a valid dns server that can be reached so it is unavailable from the LIF reaching out to dns.

Re: ONTAP is unable to contact the name server

parisi — Thu, 01 Oct 2020 14:03:08 GMT

Along with what scottygelb said, make sure your DNS servers allow standard A queries over port 53 to example.YOURDOMAIN.COM and that port 53 is open between the cluster LIF and DNS server.

"dns check" is used when you configure DNS.

TR-4835 details the dns check command on page 104:

https://www.netapp.com/us/media/tr-4835.pdf

You can also try the -skip-validation true option, which skips DNS check and then test name service lookups with the example on page 34 of the same TR.

Re: ONTAP is unable to contact the name server

wareer — Thu, 31 Oct 2024 08:52:27 GMT

Network connectivity issue between storage and DNS server

You can refer to the official case below to help you：

https://kb-cn.netapp.com/on-prem/ontap/da/NAS/NAS-KBs/DNS_create_fails_due_to_lack_of_network_reachability