Chapter 29 System
NXC Series User’s Guide
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29.6 DNS Overview
DNS (Domain Name System) is for mapping a domain name to its corresponding IP address and vice
versa. The DNS server is extremely important because without it, you must know the IP address of a
machine before you can access it.
29.6.1 DNS Server Address Assignment
The NXC can get the DNS server addresses in the following ways.
• The ISP tells you the DNS server addresses, usually in the form of an information sheet, when you sign
up. If your ISP gives you DNS server addresses, manually enter them in the DNS server fields.
• If your ISP dynamically assigns the DNS server IP addresses (along with the NXC’s WAN IP address), set
the DNS server fields to get the DNS server address from the ISP.
• You can manually enter the IP addresses of other DNS servers.
29.6.2 Configuring the DNS Screen
Click Configuration > System > DNS to change your NXC’s DNS settings. Use the DNS screen to configure
the NXC to use a DNS server to resolve domain names for NXC system features like the time server. You
can also configure the NXC to accept or discard DNS queries. Use the Network > Interface screens to
configure the DNS server information that the NXC sends to the specified DHCP client devices.
Figure 200 Configuration > System > DNS
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