Article number
000004643
Affected Versions
8.5
8.5 Update 1
Source Hypervisor
VMware
Target Hypervisor
Hyper-V

How To View DNS Configuration for VRA VM

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Description

This article explains how Domain Name System (DNS) settings are configured for a Virtual Replication Appliance (VRA) VM and why this configuration has been added to the product.

Summary

This article explains how Domain Name System (DNS) settings are configured for a Virtual Replication Appliance (VRA) VM and why this configuration has been added to the product.

The VRA VM now connects directly to servers such as those that host a Long Term Retention (LTR) repository. In order for the VRA to resolve a server name, a DNS server must be used. Public cloud resources often do not use static IP addresses, and name resolution is required to maintain a connection after an IP address has changed.

This feature applies to Zerto for vSphere, and Zerto for Hyper-V.

Steps

Starting with Zerto 8.5, upon VRA deployment, the DNS server configuration used by the Windows Server that hosts the Zerto Virtual Manager (ZVM) will be used to configure DNS on the VRA VM. The settings a particular VRA is using can be found by connecting via SSH and running the command below:

less /etc/resolv.conf

The output of this command will be similar to the example below:

# ZeRTO IP settings
nameserver 192.168.111.254
/etc/resolv.conf (END)


The DNS server(s) used by the ZVM must be accessible to each VRA VM deployed by this ZVM. If it is not, then server addresses cannot be resolved and functions such as LTR that depend on this will fail.