D-Link NetDefendOS User Manual page 882

• Deleting Local Databases
Some technical problem in the operation of either IDP or the anti-virus modules may be
resolved by deleting the database and reloading. For IDP this is done with the command:
gw-world:/> updatecenter -removedb=idp
To remove the anti-virus database, use the command:
gw-world:/> updatecenter -removedb=antivirus
Once removed, NetDefendOS should be restarted and a database update initiated. Removing
the database is also recommended if either IDP or anti-virus is not used for long periods of
time.
Note: An equals sign or space can be used with updatecenter
In the updatecenter command options, the equals sign between the option and its
value can be a space or an equals sign. For example:
update center -update=antivirus
Can be written as:
update center -update antivirus
Subscription Expiry Behavior
The behavior on subscription expiry varies according to the subsystem. The following occurs:
• Anti-Virus
Subscription expiry results in anti-virus scanning operating normally but the signature
database will not be updated until the subscription is renewed.
• IDP
Subscription expiry results in the same behavior as for anti-virus. IDP scanning will operate
normally but the signature database will not be updated until the subscription is renewed.
• Dynamic Web Content Filtering
Subscription expiry results in the feature being disabled and all web sites being allowed. The
following log message is generated by NetDefendOS if the subscription expires:
content_filtering_disabled no_valid_license
• DCC in Email Filtering
i. The Web Interface will display the following message when displaying the Email Control
Profile definition:
Warning: No valid DCC License exists
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Appendix A: Subscribing to Updates