Ptr Record; Adding An Address/Ptr Record; Domain Zone Forwarder - ZyXEL Communications ZyWall USG 2000 User Manual

third-level domain, "com" is the second-level domain, and "tw" is the top level
domain.
The ZyWALL allows you to configure address records about the ZyWALL 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 ZyWALL receives a DNS query
for an FQDN for which the ZyWALL has an address record, the ZyWALL can send
the IP address in a DNS response without having to query a DNS name server.

46.5.4 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.

46.5.5 Adding an Address/PTR Record

Click the Add icon in the Address/PTR Record table to add an address/PTR
record.
Figure 466 System > DNS > Address/PTR Record Edit
The following table describes the labels in this screen.
Table 227 System > DNS > Address/PTR Record Edit
LABEL
FQDN
IP Address
OK
Cancel

46.5.6 Domain Zone Forwarder

A domain zone forwarder contains a DNS server's IP address. The ZyWALL can
query the DNS server to resolve domain zones for features like VPN, DDNS and
the time server. A domain zone is a fully qualified domain name without the host.
ZyWALL USG 2000 User's Guide
DESCRIPTION
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.
Enter the IP address of the host in dotted decimal notation.
Click OK to save your customized settings and exit this screen.
Click Cancel to exit this screen without saving
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