Services
Configure DNS
Digi Connect IT® 16/48 User Guide
358
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
---------------------------------------------------------
----------------------
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:
(config)> service dns query_all_servers false
(config>
6. (Optional) Rebind protection
By default, rebind protection is disabled. If enabled, this prevents upstream DNS servers from
returning private IP addresses. To enable:
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Страница 157: ...Interfaces Bridging Digi Connect IT 16 48 User Guide 157 8 Click Apply to save the configuration and apply the change ...
Страница 440: ...Services Configure the ping responder service Digi Connect IT 16 48 User Guide 440 iperf Done ...