Enabling and Disabling Reverse DNS Lookup

You can specify whether the Clearswift Gateway tries to match a host name (for example, in a Machine List) to its IP address by enabling or disabling the Reverse DNS Lookup setting.

To specify the Reverse DNS Lookup setting

1. From the Policy Center Home page, click Global Web Policy. The Global Web Policy page appears.
2. Move the mouse pointer over the Reverse DNS Lookup section and click Click here to change these settings.
3. Select or clear Enable Reverse DNS Lookup.

• If you select this option, the Gateway tries to match host names to their IP addresses.
• If you clear this option, the Gateway does not try to match host names to their IP addresses.

4. Click Save.
5. Apply the configuration.

Enabling reverse DNS lookup may degrade performance. Modifying this setting requires a proxy restart, which disconnects users from their current web sessions.

See also...

• Apply the new configuration