Cisco Cisco Packet Data Gateway (PDG)
cache ttl
Configures the DNS cache time to live (TTL) for positive and negative responses.
Product
MME
SCM
SGSN
Privilege
Security Administrator, Administrator
Command Modes
Exec > Global Configuration > Context Configuration > DNS Client Configuration
configure > context context_name > dns-client client_name
Entering the above command sequence results in the following prompt:
[
context_name
]
host_name
(config-dns-client)#
Syntax Description
cache ttl { negative | positive } seconds
default cache ttl { negative | positive }
no cache [ ttl { negative | positive } ]
default cache ttl { negative | positive }
no cache [ ttl { negative | positive } ]
no
Disables any or all configured DNS cache parameters.
default
Sets the DNS cache time to live for positive and negative responses to the default setting.
{ negative | positive } seconds
negative seconds: Specifies the time to live for negative responses as an integer from 60 through 86400.
Default: 60.
Default: 60.
positive seconds: Specifies the time to live for positive responses. as an integer from 60 through 86400.
Default: 86400 (1 day).
Default: 86400 (1 day).
Usage Guidelines
Use this command to adjust the DNS cache time to live.
Command Line Interface Reference, Modes C - D, StarOS Release 19
1894
DNS Client Configuration Mode Commands
cache ttl