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Services
Repeat this step to list additional IP addresses or networks.
n
To limit access to hosts connected through a specified interface on the IX40 device:
(config)> add service dns acl interface end value
(config)>
Where value is an interface defined on your device.
Repeat this step to list additional interfaces.
n
To limit access based on firewall zones:
(config)> add service dns acl zone end value
(config)>
Where value is a firewall zone defined on your device, or the any keyword.
Repeat this step to include 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
IX40 User Guide
Display a list of available interfaces:
Use ... network interface ?to display interface information:
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)>
Configure DNS
540
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