3Com SuperStack 3 NBX, Administrator'S Manual

Page: 87 / 496

Configuring VPIM Parameters Using the NBX NetSet Utility 87
Configuring Domain
Name Server
Information
When the SMTP utility attempts to send e-mail, it must be able to resolve
a host name within an e-mail address and determine the proper IP
address from that name. Domain Name Servers on the Internet perform
this function. You can configure up to three DNS entries with the NBX
NetSet utility. The NBX system uses the second and third entries if the first
or second cannot be reached. To configure DNS information in the NBX
NetSet utility:
1 In the NBX NetSet - Main Menu window, click System Configuration .
2 Click the System Settings tab and the System-wide button. The System
Settings dialog box (Figure 27) appears.
Figure 27 System Settings Dialog Box
3 In the Primary DNS , Secondary DNS , and T ertiary DNS text boxes, type the
IP addresses of three Domain Name Servers. If you have the IP address of
only one server, type it in the
Primary DNS text box. If you have the IP
address of only two servers, type them in the Primary and Secondary DNS
text boxes. Click OK .