Chapter 37 System

Table 169 Command Summary: DNS (continued)

COMMAND

DESCRIPTION

[no] ip dns server mx-record domain_name

Sets a MX record that specifies a mail server that is responsible for

{w.x.y.zfqdn}

handling the mail for a particular domain. The no command

 

deletes a MX record.

ip dns server rule {<1..32>appendinsert

Sets a service control rule for DNS requests.

<1..32>} access-group {ALLaddress_object}

 

zone {ALLaddress_object} action {acceptdeny}

 

ip dns server rule move <1..32> to <1..32>

Changes the number of a service control rule.

[no] ip dns server zone-forwarder

Sets a domain zone forwarder record that specifies a fully qualified

{<1..32>appendinsert <1..32>}

domain name. You can also use a star (*) if all domain zones are

{domain_zone_name*} interface interface_name

served by the specified DNS server(s).

 

domain_zone_name: This is a domain zone, not a host. For

 

example, zyxel.com.tw is the domain zone for the

 

www.zyxel.com.tw fully qualified domain name. For example,

 

whenever the ZyWALL receives needs to resolve a zyxel.com.tw

 

domain name, it can send a query to the recorded name server IP

 

address.

 

interface_name: This is the interface through which the ISP

 

provides a DNS server. The interface should be activated and set

 

to be a DHCP client.

 

The no command deletes a zone forwarder record.

ip dns server zone-forwarder

Sets a domain zone forwarder record that specifies a DNS server’s

{<1..32>appendinsert <1..32>}

IP address.

{domain_zone_name*} user-definedw.x.y.z

private interface: Use private if the ZyWALL connects to

[private interface {interface_name auto}]

 

the DNS server through a VPN tunnel. Otherwise, use the

 

interface command to set the interface through which the

 

ZyWALL sends DNS queries to a DNS server. The auto means any

 

interface that the ZyWALL uses to send DNS queries to a DNS

 

server according to the routing rule.

 

 

ip dns server zone-forwarder move <1..32> to

Changes the index number of a zone forwarder record.

<1..32>

 

no ip dns server rule <1..32>

Deletes a service control rule.

show ip dns server

Displays all DNS entries.

show ip dns server database

Displays all configured records.

show ip dns server status

Displays whether this service is enabled or not.

37.6.3 DNS Command Example

This command sets an A record that specifies the mapping of a fully qualified domain name (www.abc.com) to an IP address (210.17.2.13).

Router# configure terminal

Router(config)# ip dns server a-record www.abc.com 210.17.2.13

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ZyWALL (ZLD) CLI Reference Guide