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13 DNS COMMANDSOverview A Domain Name Server (DNS) Server provides an IP address for a host computer ina given Domain.A DNS Proxy receives requests and attempts to find an entry in its local tables, andif one is not found, forwards the request to a remote server. The remote DNSServer can be learned dynamically through PPP or via a DHCP client, or can bestatically assigned.The DNS Proxy feature or the OfficeConnect Gateway enables you to configureremote DNS Servers for specific Domains. For instance, assume you have tworemote sites configured, one to the Internet and the other to a corporate sitewhich has a domain name of 3com.com. Two DNS remote servers can beconfigured, one which uses the corporate site for 3com.com and the other to usethe Internet as the default.The DNS Proxy feature of the OfficeConnect Gateway also enables you toconfigure Static Host entries. The static table is checked first before the DNSrequest is forwarded on to the remote server.This chapter identifies and describes the DNS commands accessible from theOfficeConnect Gateway CLI. The following table identifies these DNS commands:CommandTypeCommand NameAdd add dns host address add dns server preference nameDelete delete dns cache delete dns host delete dns ncache delete dns server preference Enable enable dns host_rotationenable dns round_robinDisable disable dns host_rotationdisable dns round_robinHost host
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