Motorola Netopia 7000, Руководство администратора

Страница: 255 / 368

255
Domain Name System Settings
Domain Name System (DNS) is an information ser vice for TCP/IP networks that uses a hierarchical naming
system to identify network domains and the hosts associated with them. You can identify a primar y DNS
ser ver and one secondar y ser ver.
Common Commands
set dns domain-name domain-name
Specifies the default domain name for your network. When an application needs to resolve a host name, it
appends the default domain name to the host name and asks the DNS ser ver if it has an address for the
“fully qualified host name.”
set dns primary-address ip_address
Specifies the IP address of the primar y DNS name ser ver.
set dns proxy-enable
This allows you to disable the default behavior of acting as a DNS proxy. The default is
on
.
set dns secondary-address ip_address
Specifies the IP address of the secondar y DNS name ser ver. Enter
0.0.0.0
if your network does not have a
secondar y DNS name ser ver.
set dns configured-dns-priority [ 0 - 255 ]
Sets the configured DNS priority relative to acquired DNS. These ser ver addresses may be acquired via
DHCP (client), PPP, or statically configured. A “DNS learned-ser ver-priority” is assigned to each configured
inter face. By default, configured DNSes have the highest priority (lowest number), then PPP-acquired
DNSes, and DHCP-acquired DNSes have lowest priority (highest number).
The default priorities for each type are:
•
Configured DNSes: 10
•
PPP-acquired: 20
•
DHCP-acquired: 30