Cisco Cisco Email Security Appliance C170 Referências técnicas

D N S C O N F I G

C H A P T E R 3 : T H E C O M M A N D S : R E F E R E N C E E X A M P L E S

Adding an Alternate DNS Server for Specific Domains

You can configure the appliance to use the Internet root servers for all DNS queries except
specific local domains.

Code Example 3-23

dnsconfig

-Adding Alternate DNS Servers

mail3.example.com> dnsconfig

Currently using the Internet root DNS servers.

No alternate authoritative servers configured.

Enter "NEW" to add a server, "DELETE" to remove, "EDIT" to modify,

or "SETUP" for general settings.

[]> new

Please enter the domain this server is authoritative for. (Ex: "com").

[]> example.com

Please enter the fully qualified hostname of the DNS server for

the domain "example.com".

(Ex: "dns.example.com").

[]> dns.example.com

Please enter the IP of dns.example.com.

[]> 10.1.10.9

Enter the number of seconds to wait before timing out reverse DNS

lookups.

[20]>

Currently using the Internet root DNS servers.

Alternate authoritative DNS servers:

1. example.com: dns.example.com (10.10.200.1)

Choose the operation you want to perform:

- NEW - Add a new server.

- EDIT - Edit a server.

- DELETE - Remove a server.

- SETUP - Configure general settings.

[]>

mail3.example.com>