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Sidewinder G2 6.1.1 Administration Guide - Glossary of Technical ...

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Figure 10-7. DNS Zones<br />

window<br />

Configuring hosted DNS servers<br />

About the Zones tab This tab is used to define zone information about the name server.<br />

Follow the steps below.<br />

Note: To completely reconfigure your DNS settings (for example, change from <strong>Sidewinder</strong><br />

hosted single server to split server), click Reconfigure DNS.<br />

1. In the Modify Server For field, select the name server that you want to<br />

modify.<br />

2. The Zones list defines the zones for which the name server is<br />

authoritative. This list initially contains a zone entry for each domain and<br />

each network interface defined to the <strong>Sidewinder</strong> <strong>G2</strong>. You can add or<br />

delete zone entries as follows:<br />

To add a new zone to the list, click New and see “About the Zone<br />

List window” on page 10-19 for details.<br />

To delete a zone, highlight a zone and click Delete.<br />

Secure Computing strongly recommends against deleting or modifying<br />

the following entries:<br />

Any 127 reverse zones (for example, 0.1.127.in-addr.arpa). These<br />

zones represent local loopback addresses and are required.<br />

The zone with 192.239 in its name. This zone provides multicast<br />

support for the <strong>Sidewinder</strong> <strong>G2</strong> failover feature.<br />

Domain Name System (DNS) 10-17

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