Chapter 43 System
ZyWALL/USG Series User’s Guide
831
The following table describes the labels in this screen.
Table 349 Configuration > System > DNS
LABEL DESCRIPTION
Address/PTR
Record
This record specifies the mapping of a Fully-Qualified Domain Name (FQDN) to an IP
address. An FQDN consists of a host and 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.
Add Click this to create a new entry.
Edit Double-click an entry or select it and click Edit to be able to modify the entry’s settings.
Remove To remove an entry, select it and click Remove. The ZyWALL/USG confirms you want to
remove it before doing so. Note that subsequent entries move up by one when you take
this action.
# This is the index number of the address/PTR record.
FQDN This is a host’s fully qualified domain name.
IP Address This is the IP address of a host.
CNAME Record This record specifies an alias for a FQDN. Use this record to bind all subdomains with the
same IP address as the FQDN without having to update each one individually, which
increases chance for errors. See CNAME Record (Section 43.6.6 on page 834) for more
details.
Add Click this to create a new entry.
Edit Double-click an entry or select it and click Edit to be able to modify the entry’s settings.
Remove To remove an entry, select it and click Remove. The ZyWALL/USG confirms you want to
remove it before doing so. Note that subsequent entries move up by one when you take
this action.
# This is the index number of the domain zone forwarder record. The ordering of your rules
is important as rules are applied in sequence.
A hyphen (-) displays for the default domain zone forwarder record. The default record is
not configurable. The ZyWALL/USG uses this default record if the domain zone that
needs to be resolved does not match any of the other domain zone forwarder records.
Alias Name Enter an Alias name. Use “*.” as prefix for a wildcard domain name. For example,
*.example.com.
FQDN Enter the Fully Qualified Domain Name (FQDN).
Domain Zone
Forwarder
This specifies a DNS server’s IP address. The ZyWALL/USG can query the DNS server to
resolve domain zones for features like VPN, DDNS and the time server.
When the ZyWALL/USG needs to resolve a domain zone, it checks it against the domain
zone forwarder entries in the order that they appear in this list.
Add Click this to create a new entry. Select an entry and click Add to create a new entry after
the selected entry.
Edit Double-click an entry or select it and click Edit to be able to modify the entry’s settings.
Remove To remove an entry, select it and click Remove. The ZyWALL/USG confirms you want to
remove it before doing so. Note that subsequent entries move up by one when you take
this action.
Move To change an entry’s position in the numbered list, select the method and click Move to
display a field to type a number for where you want to put it and press [ENTER] to move
the rule to the number that you typed.
# This is the index number of the domain zone forwarder record. The ordering of your rules
is important as rules are applied in sequence.
A hyphen (-) displays for the default domain zone forwarder record. The default record is
not configurable. The ZyWALL/USG uses this default record if the domain zone that
needs to be resolved does not match any of the other domain zone forwarder records.
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