DNS Server

[dya]

Is it necessary to configure the DNS server to allow forward and reverse lookups for hosts and managers?

The "Application URL" specified during manager installation also proceeded without any issues by specifying the IP address. It seems there is nothing else that cannot be done even if you do not set up host and manager records on the DNS server.

*This is a machine translation, so I apologize if it is difficult to understand.

[dya]

https://support.hpe.com/hpesc/public/docDisplay?docId=sd00006560en_us&page=GUID-634760AA-7E46-42A7-AD08-85CCE4656873.html

From reading the documentation, is DNS name resolution only necessary to access the VM Essentials appliance and the Internet?

In other words, is it my understanding that HPE Morpheus VM Essentials does not require DNS name resolution, but rather recommends it because it is necessary in cases like the one above and can be useful in other cases as well?

It seems that IP addresses can be used for application URLs, so I thought that DNS might not be necessary in cases where access to the Internet is not required.

[dya]

Accessing the internet is necessary if you want to retrieve packages, but DNS is not required for HPE Morpheus VM Essentials.

Is this understanding correct?

[Arnout_Verbeken]

It works without name resolution.  It's always a best practice to setup forward/reverse DNS.

It's highly recommended (and I don't even know if it works without) if you want to add your vcenter to the config.