ZyXEL Communications ZyXEL ZyWALL USG-1000, User Manual

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Chapter 46 System
ZyWALL USG 2000 User’s Guide
710
46.5.3 Address Record
An address record contains 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 is a fully qualified domain name, where “www” is the host, “zyxel”
is the second-level domain, and “com” is the top level domain.
mail.myZyXEL.com.tw is also a FQDN, where “mail” is the host, “myZyXEL” is the
IP/FQDN This is the IP address or Fully-Qualified Domain Name (FQDN) of a mail
server that handles the mail for the domain specified in the field above.
Add icon Click the Add icon in the heading row to open a screen where you can
add a new MX record. Refer to
Table 229 on page 713 for information on
the fields.
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.
Service
Control This specifies from which computers and zones you can send DNS
queries to the ZyWALL.
# This the index number of the service control rule. The ordering of your
rules is important as rules are applied in sequence.
The entry with a hyphen (-) instead of a number is the ZyWALL’s (non-
configurable) default policy. The ZyWALL applies this to traffic that does
not match any other configured rule. It is not an editable rule. To apply
other behavior, configure a rule that traffic will match so the ZyWALL will
not have to use the default policy.
Zone This is the zone on the ZyWALL the user is allowed or denied to access.
Address This is the object name of the IP address(es) with which the computer is
allowed or denied to send DNS queries.
Action This displays whether the ZyWALL accepts DNS queries from the
computer with the IP address specified above through the specified zone
(Accept) or discards them (Deny).
Add icon Click the Add icon in the heading row to open a screen where you can
add a new rule. Refer to
Table 230 on page 714 for information on the
fields.
Click the Edit icon to go to the screen where you can edit the rule.
Click the Add icon in an entry to add a rule below the current entry.
Click the Delete icon to remove an existing rule. A window display
asking you to confirm that you want to delete the rule. Note that
subsequent rules move up by one when you take this action.
Click the Move to N icon to display a field to type a number for where
you want to put that rule and press [ENTER] to move the rule to the
number that you typed.
Table 226 System > DNS (continued)
LABEL DESCRIPTION