User manual

Network Services
Cobalt Qube 3 User Manual 145
Network Services
In the Network section, you can enter the network configuration settings for the
Qube 3. The network settings make the Qube 3 visible to other computers.
There are three ways to set up the Qube 3 network access:
• Both intranet and Internet communication is provided through the primary
network interface.
• Intranet access is provided through the primary network interface; Internet
access is provided through the secondary network interface. The Qube 3 acts
as a gateway.
• Intranet access is provided through the primary network interface; Internet
access is provided by an analog modem or an ISDN terminal adapter
connected to the high-speed serial port. Modem settings are covered in
“Configuration for an analog modem or ISDN” on page 169
DNS server
The Domain Name System (DNS) is a vital and integral part of the Internet.
Setting up DNS correctly on your Qube 3 is very important. For this reason, we
have created an appendix solely for explaining DNS. See Appendix E, “Domain
Name System,” on page 227.
The appendix covers the following items:
• basic DNS issues
• advanced DNS issues
• a quick start guide detailing a sample setup of DNS for a Qube 3
• a brief history of the DNS service
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Important: Coordinate any changes to the network configuration
information with your Internet service provider (ISP) to ensure the
integrity of your network. If your Qube 3 is integrated into a larger
network, consult with your network administrator for this
information.
Incorrect network settings can result in a loss of connectivity.