Nortel Networks 4050 Manuel D’Utilisation
Chapter 10 Configuring system settings 479
Nortel Secure Network Access Switch 4050 User Guide
Managing DNS servers
You can add up to three DNS servers to the system configuration. The DNS server
is used by the captive portal when it forwards queries on the Exclude List. (For
more information about the captive portal and the Exclude List, see
is used by the captive portal when it forwards queries on the Exclude List. (For
more information about the captive portal and the Exclude List, see
.)
To configure the cluster to use external DNS servers, use the following command:
/cfg/sys/dns/servers
The DNS Servers menu displays.
The DNS Servers menu includes the following options:
/cfg/sys/dns/servers
followed by:
list
Lists the IP addresses of currently configured DNS
servers, by index number.
servers, by index number.
del <index number>
Removes the specified DNS server from the system
configuration. The index numbers of the remaining
entries adjust accordingly.
configuration. The index numbers of the remaining
entries adjust accordingly.
To view the index numbers of all configured DNS
servers, use the
servers, use the
list
command.
add <IPaddr>
Adds a DNS server to the system configuration.
•
IPaddr
— the IP address of the DNS server
The system automatically assigns the next available
index number to the server.
index number to the server.
You can add up to three DNS servers to the
configuration.
configuration.
insert <index number>
<IPaddr>
<IPaddr>
Inserts a server at a particular position in the list of
DNS servers in the configuration.
DNS servers in the configuration.
•
index number
— the index number you want
the server to have
•
IPaddr
— the IP address of the DNS server you
are adding
The index number you specify must be in use. The
index numbers of existing servers with this index
number and higher are incremented by 1.
index numbers of existing servers with this index
number and higher are incremented by 1.