Amer Networks E5Web GUI - Manual (Page 748)

Appendix A: Update Subscriptions
Overview
A number of cOS Core features function by accessing the Clavister Service Provisioning Network
(CSPN) which consists of a number of servers distributed geographically around the globe. The
following cOS Core modules make use of this network:
• Intrusion Detection and Prevention (IDP)
A database of known threat signatures is stored locally in the Clavister Security Gateway. This
local database needs to be updated regularly with the latest threat signatures by
automatically downloading updates from the CSPN.
• Anti-Virus Scanning
Like IDP, a database of known virus signatures is stored locally. This local database also needs
to be updated regularly with the latest virus signatures by automatically downloading
updates from the CSPN.
• Web Content Filtering
Queries the database available through the CSPN for each website accessed in order to
categorize them and implement the chosen filtering policy. cOS Core caches already
looked-up websites locally to maximize look-up performance.
• Application Control
This is also part of a Clavister subscription agreement but does not currently make use of the
CSPN.
To make use of these cOS Core features, a subscription agreement must be entered into. This is
an addition to the standard cOS Core license. Subscribing is done by:
1. Purchasing the required subscription from a Clavister reseller. This can be purchased with a
lifetime of 1 year or 3 years and is recorded in the central Clavister customer license
database so it becomes associated with the overall Clavister license.
2. Once the purchase is logged, use the Clavister Customer Web to update the current cOS
Core license. This will cause the central Clavister database to be checked and the local cOS
Core license will be updated with the subscription information.
Important: DNS servers need to be configured
Make sure at least one external DNS server is correctly configured in cOS Core (see
Section 3.10, “DNS”) so that the Clavister network servers that provide updates can be
located by cOS Core.
Subscription renewal
When a subscription is approaching its expiry date, a notification is received in the following
ways:
• A reminder email will be sent by Clavister to the email address associated with the license.
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