Cisco Cisco Email Security Appliance C160 Références techniques

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CLI Reference Guide for AsyncOS 9.7 for Cisco Email Security Appliances
 
Chapter 3      The Commands: Reference Examples
  DNS
Do you want the Gateway to use the Internet's root DNS servers or would you like
it to use your own DNS servers?
1. Use Internet root DNS servers
2. Use own DNS cache servers
[1]> 1
Choose the IP interface for DNS traffic.
1. Auto
2. Management (10.92.149.70/24: mail3.example.com)
[1]> 
Enter the number of seconds to wait before timing out reverse DNS lookups.
[20]> 
Enter the minimum TTL in seconds for DNS cache.
[1800]> 
Currently using the Internet root DNS servers.
Alternate authoritative DNS servers:
1. com: dns.example.com (10.1.10.9)
Choose the operation you want to perform:
- NEW - Add a new server.
- EDIT - Edit a server.
- DELETE - Remove a server.
- SETUP - Configure general settings.
[]> 
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.
mail3.example.com> dnsconfig
Currently using the Internet root DNS servers.
No alternate authoritative servers configured.
Choose the operation you want to perform:
- NEW - Add a new server.
- SETUP - Configure 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 address of dns.example.com.
[]> 10.1.10.9
Currently using the Internet root DNS servers.
Alternate authoritative DNS servers:
1. com: dns.example.com (10.1.10.9)