Chapter 45 System

The following table describes the labels in this screen.

Table 213 Configuration > System > DNS

LABEL

DESCRIPTION

Address/PTR

This record specifies the mapping of a Fully-Qualified Domain Name

Record

(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 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.

 

 

Domain Zone

This specifies a DNS server’s IP address. The ZyWALL can query the

Forwarder

DNS server to resolve domain zones for features like VPN, DDNS and

 

the time server.

 

When the ZyWALL 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 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 uses this default

 

record if the domain zone that needs to be resolved does not match

 

any of the other domain zone forwarder records.

 

 

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.

 

A “*” means all domain zones.

 

 

Type

This displays whether the DNS server IP address is assigned by the ISP

 

dynamically through a specified interface or configured manually

 

(User-Defined).

 

 

 

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ZyWALL USG 50 User’s Guide