Configuring Domain Name Server Information - 3Com 3C10402B Administrator's Manual

230 C 9: NBX M
HAPTER
Configuring Domain
Name Server
Information
ESSAGING
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 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 Click System-Wide Settings > IP Settings.
2 In the Primary DNS, Secondary DNS, and Tertiary DNS fields, 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 field. If you have the IP address
of only two servers, type them in the Primary and Secondary DNS fields.
Click OK.