ZyXEL Communications 5 Series User Manual

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Chapter 26 DNS Screens
ZyWALL 5/35/70 Series User’s Guide
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Figure 274   ADVANCED > DNS > System DNS
The following table describes the labels in this screen.
LABEL
DESCRIPTION
Address Record
An address record specifies the mapping of a fully qualified domain name 
(FQDN) to an IP address. An FQDN consists of a host and domain name and 
includes the top-level domain. For example, www.zyxel.com.tw is a fully 
qualified domain name, where “www” is the host, “zyxel” is the second-level 
domain, and “com.tw” is the top level domain. 
#
This is the index number of the address record.
FQDN
This is a host’s fully qualified domain name.
Wildcard
This column displays whether or not the DNS wildcard feature is enabled for 
this domain name.
IP Address
This is the IP address of a host.
Modify
Click the edit icon to go to the screen where you can edit the record.
Click the delete icon to remove an existing record. A window display asking you 
to confirm that you want to delete the record. Note that subsequent records 
move up by one when you take this action.
Add
Click Add to open a screen where you can add a new address record. Refer to 
 for information on the fields.
Name Server 
Record
A name server record contains a DNS server’s IP address. The ZyWALL can 
query the DNS server to resolve domain names for features like VPN, DDNS 
and the time server. 
When the ZyWALL needs to resolve a domain name, it checks it against the 
name server record entries in the order that they appear in this list. 
A “*” indicates a name server record without a domain zone. The default record 
is grayed out. The ZyWALL uses this default record if the domain name that 
needs to be resolved does not match any of the other name server records.
A name server record with a domain zone is always put before a record without 
a domain zone. 
#
This is the index number of the name server record.