Product Documentation

Creating a DNS Load Balancing Virtual Server

Aug 23, 2013
The DNS virtual server enables the forward proxy to perform DNS resolution before forwarding a client request to an origin server. The DNS load balancing virtual server is associated with the DNS service that represents the physical DNS server on the network.

To create a DNS load balancing virtual server by using the command line interface

At the command line, type the following commands to create a DNS load balancing virtual server and verify the configuration:

  • add lb vserver <name> <serviceType>
  • show lb vserver [<name>]


> add lb vserver Vserver-DNS-1 DNS 
> show lb vserver Vserver-DNS-1 
        Vserver-DNS-1 ( - DNS Type: ADDRESS 
        State: DOWN 
        Last state change was at Fri Jul  2 10:32:28 2010 
        Time since last state change: 0 days, 00:00:08.10 
        Effective State: DOWN  ARP:DISABLED 
        Client Idle Timeout: 120 sec 
        Down state flush: ENABLED 
        Disable Primary Vserver On Down : DISABLED 
        No. of Bound Services :  0 (Total)       0 (Active) 
        Configured Method: LEASTCONNECTION 
        Mode: IP 
        Persistence: NONE 

To create a DNS load balancing virtual server by using the configuration utility

  1. Navigate to Traffic Management > Load Balancing > Virtual Servers.
  2. In the details pane, click Add.
  3. In the Create Virtual Server (Load Balancing) dialog box, in the Name box, type a name for the virtual server.
  4. In the Protocol* drop down list, select a supported protocol (for example, DNS).
  5. Click Create, and then click Close. The DNS Virtual Servers pane displays the new virtual server.