Cache Request Trend

Prerequisites

The DNS static cache function has been enabled and configured. For details, see DNS Defense Policy.

Function

The DNS cache request trend collects statistics on external requests for domain names in the DNS cache. If domain names in the DNS cache are seldom requested, replace them with domain names that are frequently requested.

Parameter

**Table 1** Query parameters of Cache Request Trend
Parameter	Description
Device	Select a cleaning device from the drop-down list. The Total (Cleaning) indicates that traffic on all cleaning devices is queried.
Zone	Click , select a Zone on the Zone page that is displayed, and then click OK.
Service	Select a service or service group from the drop-down list. For details about service configuration, see (Optional) Creating a Service and a Defense Policy.
Time	Click to select the start time and end time of statistics. Or you can change the time values in corresponding text boxes. The end time should be later than the start time and the interval cannot be longer than one year. If the query interval is longer than or equal to seven days and shorter than one year, statistics are collected daily. If the query interval is longer than or equal to one day and shorter than seven days, statistics are collected hourly. If the query interval is shorter than one day, statistics are collected every five minutes.

Example

If the Device is set to Total (Cleaning) and the Zone to Total, Figure 1 shows the analysis results of the cache request trend within a period of time.

Figure 1 Cache request trend

Procedure

Choose Report > Report > DNS Analysis.
Click the Cache Request Trend tab.
Set query parameters.
Click Search.
The analysis results of the cache request trend are displayed.
Optional: Open or save the query results as files, or send queried reports to the specified email address.
- Click to open or save the query results as PDF files. A maximum of 10,000 entries can be displayed.
- Click to open or save the query results as EXCEL files. A maximum of 10,000 entries can be displayed.
- Click to open or save the query results as CSV files. All data except figures can be displayed.
- Click to enter a recipient mail address and select an attachment format. Then click OK.