Services
Configure DNS
LR54 User Guide
616
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 LR54 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
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
.
8. (Optional)
Allow localhost rebinding
is enabled by default if
Rebind protection
is enabled.
This is useful for Real-time Black List (RBL) servers.
9. (Optional) To add additional DNS servers:
Содержание TransPort LR54
Страница 1: ...LR54 User Guide Firmware version 22 8 ...
Страница 506: ...Virtual Private Networks VPN OpenVPN LR54 User Guide 506 5 Click Apply to save the configuration and apply the change ...
Страница 628: ...Services Simple Network Management Protocol SNMP LR54 User Guide 628 The SNMP page is displayed 4 Click Download ...
Страница 1050: ...Command line interface Execute a command from the web interface LR54 User Guide 1050 The Admin CLI prompt appears ...
Страница 1095: ...Command line interface Command line reference LR54 User Guide 1095 reboot Reboot the system Parameters None ...