Nortel Networks 4050 manual Managing DNS servers, Cfg/sys/dns/servers followed by

Chapter 10 Configuring system settings 479

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 “Captive portal and Exclude List” on page 386.)

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.
del <index number>	Removes the specified DNS server from the system
	configuration. The index numbers of the remaining
	entries adjust accordingly.
	To view the index numbers of all configured DNS
	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.
	You can add up to three DNS servers to the
	configuration.
insert <index number>	Inserts a server at a particular position in the list of
<IPaddr>	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.

Nortel Secure Network Access Switch 4050 User Guide