Enabling The Dns Resolver; Verifying Login Settings; For More Information About - Alcatel OmniSwitch 6624 Management Manual

Logging Into the Switch

Enabling the DNS Resolver

A Domain Name System (DNS) resolver is an optional internet service that translates host names into IP
addresses. Every time you enter a host name when logging into the switch, a DNS service must look up
the name on a server and resolve the name to an IP address. You can configure up to three domain name
servers that will be queried in turn to resolve the host name. If all servers are queried and none can resolve
the host name to an IP address, the DNS fails. If the DNS fails, you must either enter an IP address in
place of the host name or specify the necessary lookup tables on one of the specified servers.
Note. You do not need to enable the DNS resolver service unless you want to communicate with the
switch by using a host name. If you use an IP address rather than a host name, the DNS resolver service is
not needed.
You must perform three steps on the switch to enable the DNS resolver service.
1
Set the default domain name for DNS lookups with the
-> ip domain-name mycompany1.com
2
Specify the IP addresses of up to three servers with the
will be queried when a host lookup is requested.
-> ip name-server 189.202.191.14 189.202.191.15 189.255.19.1
3
Use the ip domain-lookup
-> ip domain-lookup
You can disable the DNS resolver by using the
refer to the OmniSwitch CLI Reference Guide.

Verifying Login Settings

To display information about login sessions, use the following CLI commands.
who
whoami
show session config
show dns
For more information about these commands, refer to the OmniSwitch CLI Reference Guide.
OmniSwitch 6600 Family Switch Management Guide
CLI command to enable the DNS resolver service.
no ip domain-lookup
Displays all active login sessions (e.g., console, Telnet, FTP, HTTP,
Secure Shell, Secure Shell FTP).
Displays the current user session.
Displays session configuration information (e.g., default prompt, ban-
ner file name, inactivity timer, login timer, login attempts).
Displays the current DNS resolver configuration and status
April 2006

Enabling the DNS Resolver

ip domain-name CLI command.
ip name-server CLI command. These servers
command. For more information,
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