Chapter 20 DNS
The following table describes the labels in this screen.
Table 114 ADVANCED > DNS > 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 |
| qualified domain name, where “www” is the host, “zyxel” is the |
| domain, and “com.tw” is the top level domain. |
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# | This is the index number of the address record. |
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FQDN | This is a host’s fully qualified domain name. |
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Wildcard | This column displays whether or not the DNS wildcard feature is enabled for |
| this domain name. |
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IP Address | This is the IP address of a host. |
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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. |
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Add | Click Add to open a screen where you can add a new address record. Refer to |
| Table 115 on page 369 for information on the fields. |
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Name Server | A name server record contains a DNS server’s IP address. The ZyWALL can |
Record | 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. |
| A name server record with a domain zone is always put before a record without |
| a domain zone. |
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# | This is the index number of the name server record. |
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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. |
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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. |
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DNS Server | This is the IP address of a DNS server. |
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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. |
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Insert | Enter the rule number where you want to put the record and click Insert to open |
| a screen where you can configure a new name server record. Refer to Table |
| 116 on page 370 for information on the fields. |
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Click Add in the System screen to open this screen. Use this screen to add an address record.
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ZyWALL 2 Plus User’s Guide |
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