Cisco Cisco FirePOWER Appliance 7010
50-16
FireSIGHT System User Guide
Chapter 50 Managing System Policies
Configuring a System Policy
The Database page appears.
Step 4
For each of the databases, enter the number of records you want to store.
For information on how many records each database can maintain, see the
table.
Step 5
Optionally, in the
Data Pruning Notification Address
field, enter the email address you want to receive
notifications when intrusion events, discovery events, audit records, security intelligence data, or URL
filtering data are pruned from the appliance’s database.
filtering data are pruned from the appliance’s database.
Note that you must also configure an email server. See
for more information.
Step 6
Click
Save Policy and Exit
.
The system policy is updated. Your changes do not take effect until you apply the system policy. See
Configuring DNS Cache Properties
License:
Any
If you have a DNS server configured on the Network page, you can configure the appliance to resolve
IP addresses automatically on the event view pages. As a user assigned the Administrator role, you can
also configure basic properties for DNS caching performed by the appliance. Configuring DNS caching
allows you to identify IP addresses you previously resolved without performing additional lookups. This
can reduce the amount of traffic on your network and speed the display of event pages when IP address
resolution is enabled.
IP addresses automatically on the event view pages. As a user assigned the Administrator role, you can
also configure basic properties for DNS caching performed by the appliance. Configuring DNS caching
allows you to identify IP addresses you previously resolved without performing additional lookups. This
can reduce the amount of traffic on your network and speed the display of event pages when IP address
resolution is enabled.
To configure the DNS cache properties:
Access:
Admin
Step 1
Select
System > Local > System Policy
.
The System Policy page appears.
Step 2
You have the following options:
•
To modify the DNS cache settings in an existing system policy, click the edit icon (
) next to the
system policy.
•
To configure the DNS cache settings as part of a new system policy, click
Create Policy
.
Provide a name and description for the system policy as described in
, and click
Save
.
In either case, the Access List page appears.
Step 3
Click
DNS Cache
.
The DNS Cache page appears.
Step 4
Select
Enabled
from the
DNS Resolution Caching
drop-down list to enable caching. Select
Disabled
to disable
it.