Dns Proxy Tab - McAfee SG310 Administration Manual

Network Setup menu options
DNS
• Static Hosts tab
The DNS configuration information is stored in /etc/config/dnsmasq.conf. For a complete list of options that
can be stored in this file, run the following command from the command line interface:
# dnsmasq --help

DNS Proxy tab

Use this tab to configure the UTM Firewall appliance to run a Domain Name Server (DNS) proxy. In the
default configuration for DNS, the appliance passes incoming DNS requests from internal clients to an
external DNS server, and forwards the reply back to the internal client. When the DNS proxy is enabled, all
the computers on the LAN can specify the IP address of the UTM Firewall appliance as their DNS server. The
DNS Proxy is enabled by default.
The DNS Proxy Server page is shown in
Figure 119 DNS Proxy Server page
Enabling DNS proxy server
From the Network Setup menu, click Network Setup, select the DNS tab, and then select the DNS
1
Proxy tab. The DNS Proxy Server page appears.
[Enabled by default] To enable the DNS Proxy and allow caching of DNS requests, select the Enable DNS
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Proxy checkbox. DNS caching is especially useful for improving response time when Internet access is
through dialup, cable modem, or ADSL.
[Optional if using DHCP server] To enable forward and reverse lookups for hosts with DHCP leases from
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the UTM Firewall appliance, select the Update DNS with local DHCP leases checkbox. For information
on configuring DHCP, see
[Optional] If the LAN connection has a statically assigned IP address, select this option have the hostname
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resolve as the IP address on the main LAN port.
Click Submit.
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Disabling DNS proxy server
From the Network Setup menu, click Network Setup, select the DNS tab, and then select the DNS
1
Proxy tab. The DNS Proxy Server page appears.
Clear the Enable DNS Proxy checkbox.
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Click Submit.
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118 McAfee UTM Firewall 4.0.4 Administration Guide
Figure 119.
DHCP Server.