Services Configure DNS
Digi Connect EZ Mini User Guide
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The Configuration window is displayed.
3. Click Services > DNS.
4. Click Access control list to configure access control:
n To limit access to specified IPv4 addresses and networks:
a. Click IPv4 Addresses.
b. For Add Address, click .
c. For Address, enter the IPv4 address or network that can access the device's DNS
service. Allowed values are:
l A single IP address or host name.
l A network designation in CIDR notation, for example, 192.168.1.0/24.
l any: No limit to IPv4 addresses that can access the DNS service.
d. Click again to list additional IP addresses or networks.
n To limit access to specified IPv6 addresses and networks:
a. Click IPv6 Addresses.
b. For Add Address, click .
c. For Address, enter the IPv6 address or network that can access the device's DNS
service. Allowed values are:
l A single IP address or host name.
l A network designation in CIDR notation, for example, 2001:db8::/48.
l any: No limit to IPv6 addresses that can access the DNS service.
d. Click again to list additional IP addresses or networks.
n To limit access to hosts connected through a specified interface on the Connect EZ
device:
a. Click Interfaces.
b. For Add Interface, click .
c. For Interface, select the appropriate interface from the dropdown.
d. Click again to allow access through additional interfaces.
n To limit access based on firewall zones:
a. Click Zones.
b. For Add Zone, click .
c. For Zone, select the appropriate firewall zone from the dropdown.
See Firewall configuration for information about firewall zones.
d. Click again to allow access through additional firewall zones.
5. (Optional) Cache negative responses is enabled by default. Disabling this option may improve
performance on networks with transient DNS results, when one or more DNS servers may
have positive results. To disable, click to toggle off Cache negative responses.
6. (Optional) Query all servers is enabled by default. This option is useful when only some DNS
servers will be able to resolve hostnames. To disable, click to toggle off Query all servers.
7. (Optional) Rebind protection, if enabled, prevents upstream DNS servers from returning
private IP addresses. To enable, click Rebind protection.
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