Cisco Cisco Email Security Appliance C390 Riferimenti tecnici

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CLI Reference Guide for AsyncOS 9.8 for Cisco Email Security Appliances
 
Chapter 3      The Commands: Reference Examples
  DNS
Note
Cannot be used when using Internet root nameservers.
Command arguments:
<ns_ip>
 - The IP address of the nameserver. Separate multiple IP addresses with commas.
<domains>
 - A comma separated list of domains.
Deleting the alternate DNS cache for a specific domain:
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.
Note
You can override certain domains by specifying an alternate name server for that domain.
Deleting nameservers:
Note
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.
Example
Each user-specified DNS server requires the following information:
Hostname 
IP address
Domain authoritative for (alternate servers only)
dnsconfig alt delete <domain>
dnsconfig roots new <ns_domain> <ns_name> <ns_ip>
dnsconfig roots delete <ns_domain> [ns_name]
dnsconfig roots
dnsconfig print