Resolution Of Host Names; Enabling Dynamic Resolution Of Host Names; Specifying The Local System Domain And A List Of Domains - Dell Force10 Z9000 Configuration Manual

To view the configuration, use the show config command in INTERFACE mode.

Resolution of Host Names

Domain name service (DNS) maps host names to IP addresses. This feature simplifies such commands as Telnet and FTP by allowing
you to enter a name instead of an IP address.
Dynamic resolution of host names is disabled by default. Unless you enable the feature, the system resolves only host names entered
into the host table with the ip host command.
The following sections describe DNS and the resolution of host names.
•

Enabling Dynamic Resolution of Host Names

•

Specifying the Local System Domain and a List of Domains

• Configuring DNS with Traceroute
Enabling Dynamic Resolution of Host Names
By default, dynamic resolution of host names (DNS) is disabled.
To enable DNS, use the following commands.
• Enable dynamic resolution of host names.
CONFIGURATION mode
ip domain-lookup
• Specify up to six name servers.
CONFIGURATION mode
ip name-server ip-address [ip-address2 ... ip-address6]
The order you entered the servers determines the order of their use.
Example of the show hosts Command
To view current bindings, use the show hosts command.
Dell>show host
Default domain is force10networks.com
Name/address lookup uses domain service
Name servers are not set
Host Flags TTL
-------- ----- ----
ks (perm, OK) -
patch1 (perm, OK) -
tomm-3 (perm, OK) -
gxr (perm, OK) -
f00-3 (perm, OK) -
Dell>
To view the current configuration, use the show running-config resolve command.
Specifying the Local System Domain and a List of Domains
If you enter a partial domain, Dell Networking OS can search different domains to finish or fully qualify that partial domain.
A fully qualified domain name (FQDN) is any name that is terminated with a period/dot. Dell Networking OS searches the host table
first to resolve the partial domain. The host table contains both statically configured and dynamically learnt host and IP addresses. If
Dell Networking OS cannot resolve the domain, it tries the domain name assigned to the local system. If that does not resolve the
partial domain, Dell Networking OS searches the list of domains configured.
To configure a domain name or a list of domain names, use the following commands.
322
IPv4 Routing
Type Address
---- -------
IP 2.2.2.2
IP 192.68.69.2
IP 192.68.99.2
IP 192.71.18.2
IP 192.71.23.1