Network Settings for the SRX 210 Services Gateway
A Domain Name System (DNS) server on the network maintains a database for resolving hostnames and IP addresses. Network devices can query the DNS server by hostnames rather than IP addresses. The SRX 210 services gateway accesses the DNS servers that are added to the configuration to resolve hostnames in the order in which you list them.
If you plan to include your device in several domains, you can add these domains to the configuration so that they are included in a DNS search. When DNS searches are requested, the domain suffixes are appended to the hostnames.