Domain Name System
The Domain Name System (DNS) resolver is a feature in a Layer 2 or Layer 3 device that sends and receives queries to and from the DNS server on behalf of a client.
You can create a list of domain names that can be used to resolve host names. This list can have more than one domain name. When a client sends a DNS query, all hosts within the domains in the list can be recognized and queries can be sent to any domain on the list.
After you define a domain name, the RUCKUS device automatically appends the appropriate domain to a host and forwards it to the DNS servers for resolution.
For example, if the domain "ds.company.com" is defined on a Layer 2 or Layer 3 switch and you want to initiate a ping to "mary", you must reference only the host name instead of the host name and its domain name. For example, you could use the following command to initiate the ping.
device:> ping mary
The device qualifies the host name by appending a domain name (for example, mary.ds1.company.com). This qualified name is sent to the DNS server for resolution. If there are four DNS servers configured, it is sent to the first DNS server. If the host name is not resolved, it is sent to the second DNS server. If a match is found, a response is sent back to the client with the host IP address. If no match is found, an "unknown host" message is returned.
