Cisco Cisco Email Security Appliance C160 Références techniques

Configuring DNS to use the Internet root nameservers:

Nameserver arguments:

<ns_domain>

 - The domain to override.

<ns_name>

 - The name of the nameserver.

<ns_ip>

 - The IP address of the nameserver.

You can override certain domains by specifying an alternate name server for that domain.

Deleting nameservers:

When deleting, if you do not specify an 

ns_name

, then all nameservers for that domain will be removed.

Clearing all DNS settings and automatically configuring the system to use the Internet root servers:

Displaying the current DNS settings.

Each user-specified DNS server requires the following information:

Hostname 

IP address

Domain authoritative for (alternate servers only)

Four subcommands are available within the 

dnsconfig

 command:

dnsconfig roots new <ns_domain> <ns_name> <ns_ip>

dnsconfig roots delete <ns_domain> [ns_name]

dnsconfig roots

dnsconfig print

new

Add a new alternate DNS server to use for specific domains or local 
DNS server.

delete

Remove an alternate server or local DNS server.

edit

Modify an alternate server or local DNS server.

setup

Switch between Internet root DNS servers or local DNS servers.