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 TracerouteName server, Domain name, and Domain list are VRF specific. The maximum number of Name servers and Domain lists per VRF is six.Enabling Dynamic Resolution of Host NamesBy default, dynamic resolution of host names (DNS) is disabled.To enable DNS, use the following commands.• Enable dynamic resolution of host names.CONFIGURATION modeip domain-lookup• Specify up to six name servers.CONFIGURATION modeip 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 CommandTo view current bindings, use the show hosts command.Dell>show hostDefault domain is force10networks.comName/address lookup uses domain serviceName servers are not setHost Flags TTL Type Address-------- ----- ---- ---- -------ks (perm, OK) - IP 2.2.2.2patch1 (perm, OK) - IP 192.68.69.2tomm-3 (perm, OK) - IP 192.68.99.2gxr (perm, OK) - IP 192.71.18.2f00-3 (perm, OK) - IP 192.71.23.1Dell>To view the current configuration, use the show running-config resolve command.Specifying the Local System Domain and a List ofDomainsIf 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 toresolve the partial domain. The host table contains both statically configured and dynamically learnt host and IP addresses. If DellNetworking OS cannot resolve the domain, it tries the domain name assigned to the local system. If that does not resolve the partialdomain, Dell Networking OS searches the list of domains configured.To configure a domain name or a list of domain names, use the following commands.• Enter up to 63 characters to configure one domain name.CONFIGURATION modeip domain-name name• Enter up to 63 characters to configure names to complete unqualified host names.CONFIGURATION mode440 IPv4 Routing
