Chapter 33 System
NXC5200 User’s Guide
473
The NXC allows you to configure address records about the NXC itself or another
device. This way you can keep a record of DNS names and addresses that people
on your network may use frequently. If the NXC receives a DNS query for an FQDN
for which the NXC has an address record, the NXC can send the IP address in a
DNS response without having to query a DNS name server.
33.5.4 PTR Record
A PTR (pointer) record is also called a reverse record or a reverse lookup record. It
is a mapping of an IP address to a domain name.
33.5.5 Adding an Address/PTR Record
Click the Add icon in the Address/PTR Record table to add an address/PTR
record.
Figure 215
Configuration > System > DNS > Add Address/PTR Recordt
The following table describes the labels in this screen.
Table 180
Configuration > System > DNS > Add Address/PTR Record
LABEL
DESCRIPTION
FQDN
Type a Fully-Qualified Domain Name (FQDN) of a server. An FQDN starts
with a host name and continues all the way up to the top-level domain
name. For example, www.zyxel.com.tw is a fully qualified domain
name, where “www” is the host, “zyxel” is the third-level domain, “com”
is the second-level domain, and “tw” is the top level domain.
Underscores are not allowed.
Use "*." as a prefix in the FQDN for a wildcard domain name (for
example, *.example.com).
IP Address
Enter the IP address of the host in dotted decimal notation.
OK
Click OK to save your customized settings and exit this screen.
Cancel
Click Cancel to exit this screen without saving