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1 adding an address record, Table 112 system dns – ZyXEL Communications ZyXEL ZyWALL 5 User Manual

Page 323

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ZyWALL 5 User’s Guide

322

Chapter 20 DNS

The following table describes the labels in this screen.

20.6.1 Adding an Address Record

Click Add in the System screen to add an address record.

Table 112 System DNS

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

Table 113 on page 323

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.

#

This is the index number of the name server record.

Domain Zone

A domain zone is a fully qualified domain name without the host. For example,

zyxel.com.tw is the domain zone for the www.zyxel.com.tw fully qualified

domain name.

From

This field displays whether the IP address of a DNS server is from a WAN

interface (and which it is) or specified by the user.

DNS Server

This is the IP address of a DNS server.

Modify

Click a triangle icon to move the record up or down in the list.
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.

Insert

Click Insert to open a screen where you can insert a new name server record.

Refer to

Table 114 on page 324

for information on the fields.