To configure the DNS Cache

Steps

1. Access the Server Manager and click the Preferences tab.

2. Click the Configure DNS Cache link.

   The Configure DNS Cache page displays.

3. You can enable or disable DNS caching.

4. Select the number of entries from the DNS Cache Size drop-down list that can be stored in the DNS cache.

   The default size is 1024.

5. You can set the DNS cache expiration time.

   The Proxy Server purges DNS cache entries from the cache when it reaches a pre-set expiration time. The default DNS expiration time is 20 minutes.

6. You can enable or disable caching of errors when the host name is not found.

7. Click OK.

8. Click Restart Required.

   The Apply Changes page displays.

9. Click the Restart Proxy Server button to apply the changes.