Cisco Cisco Email Security Appliance C680 Technical References
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CLI Reference Guide for AsyncOS 9.6 for Cisco Email Security Appliances
Chapter 3 The Commands: Reference Examples
DNS
3. Require IPv4
4. Require IPv6
[2]> 3
Choose the operation you want to perform:
- NEW - Add new domain override.
- SETDEFAULT - Set the default behavior.
[]> setdefault
How should the appliance sort IP addresses?
1. Prefer IPv4
2. Prefer IPv6
3. Require IPv4
4. Require IPv6
[2]> 1
Choose the operation you want to perform:
- NEW - Add new domain override.
- SETDEFAULT - Set the default behavior.
[]>
dnslistconfig
Description
Configure DNS List services support
Usage
Commit: This command requires a ‘commit’.
Cluster Management: This command is restricted to machine mode.
Batch Command: This command does not support a batch format
Example
mail3.example.com> dnslistconfig
Current DNS List Settings:
Negative Response TTL: 1800 seconds
DNS List Query Timeout: 3 seconds
Choose the operation you want to perform:
- SETUP - Configure general settings.
[]> setup
Enter the cache TTL for negative responses in seconds:
[1800]> 1200
Enter the query timeout in seconds:
[3]>
Settings updated.