Devon IT OptiPlex VDI Blaster Edition Administration Manual page 23

Alternative Configuration for Environments Without DNS
If you don't have access to a DNS server, you can add the IP address of the
server to your thin client by following these steps.
Follow these steps on each thin client you want to manage with Echo.
1
In the System Tray, double-click on the Echo Agent icon.
2
In the System Information window, click Change Management Server.
Enter the IP address instead of the domain name ws-broker and click
3
OK.
Virtual Appliance Installation & Setup | 23