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| Chapter 43 System |
| Table 233 System > DNS (continued) | |
| LABEL | DESCRIPTION |
| Action | This displays whether the ZyWALL accepts DNS queries from the computer with |
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| the IP address specified above through the specified zone (Accept) or discards |
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| them (Deny). |
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| Add icon | Click the Add icon in the heading row to open a screen where you can add a new |
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| rule. Refer to Table 237 on page 676 for information on the fields. |
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| Click the Edit icon to go to the screen where you can edit the rule. |
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| Click the Add icon in an entry to add a rule below the current entry. |
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| Click the Delete icon to remove an existing rule. A window display asking you to |
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| confirm that you want to delete the rule. Note that subsequent rules move up by one |
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| when you take this action. |
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| Click the Move to N icon to display a field to type a number for where you want to |
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| put that rule and press [ENTER] to move the rule to the number that you typed. |
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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
The ZyWALL allows you to configure address records about the ZyWALL itself or another device. This way you can keep a record of DNS names and addresses that people on your network may use frequently. If the ZyWALL receives a DNS query for an FQDN for which the ZyWALL has an address record, the ZyWALL can send the IP address in a DNS response without having to query a DNS name server.
43.5.4 PTR RecordA PTR (pointer) record is also called a reverse record or a reverse lookup record. It is a mapping of an IP address to a domain name.
43.5.5 Adding an Address/PTR RecordClick the Add icon in the Address/PTR Record table to add an address/PTR record.
Figure 491 System > DNS > Address/PTR Record Edit
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ZyWALL USG 100/200 Series User’s Guide | |
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