Services
Configure DNS
IX14 User Guide
351
loopback
Loopback
modem
Modem
config)>
Repeat this step to list additional interfaces.
n
To limit access based on firewall zones:
(config)> add service dns acl zone end
value
Where
value
is a firewall zone defined on your device, or the
any
keyword.
Display a list of available firewall zones:
Type
... firewall zone ?
at the config prompt:
(config)> ... firewall zone ?
Zones: A list of groups of network interfaces that can be
referred to by packet
filtering rules and access control lists.
Additional Configuration
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any
dynamic_routes
edge
external
internal
ipsec
loopback
setup
(config)>
Repeat this step to list additional firewall zones.
4. (Optional) Cache negative responses
By default, the device's DNS server caches negative responses. Disabling this option may
improve performance on networks with transient DNS results, when one or more DNS servers
may have positive results. To disable:
(config)> service dns cache_negative_responses false
(config>
5. (Optional) Query all servers
By default, the device's DNS server queries all available DNS servers. Disabling this option may
improve performance on networks with transient DNS results, when one or more DNS servers
may have positive results. To disable: