Section B: Basic DNS configuration on a NetCache appliance

Required configuration to support DNS

The NetCache appliance uses DNS to resolve host names. The following information must be provided to ensure NetCache support of DNS:

NetCache host name
NetCache domain name
DNS nameservers to which NetCache can send requests for name resolution

The first time the NetCache appliance boots, NetCache broadcasts a request to the network to determine whether a DHCP server is available to provide specific information about the network. If a DHCP server replies, NetCache accepts the following information from the DHCP server, if the DHCP server has been configured to provide it:

IP address
Default gateway
NetCache domain name (Appliance domain name)
DNS nameservers

NetCache provides this information as default settings during the setup program.

If a DHCP server is not available, you are prompted for this DNS information during the NetCache setup program. You can change any of these settings later, if necessary, on the DNS - General page in the Appliance Manager. To access this page, select Setup tab > DNS > General.

Failover of nameservers

Entering multiple nameservers in the NetCache DNS configuration provides failover capability if a nameserver is unavailable.