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IMPORTANT
SNS 3.x versions have reached End of Maintenance since July 1st, 2024.
We recommend that you update your SNS firewalls to a version with maintenance to guarantee the protection of your infrastructure.

# System

## "Real time" tab

This module presents various indicators on the firewall's operation in the form of graphs or tables:

- CPU load,
- Memory use,
- CPU consumption of each service enabled on the firewall,
- System date and time,
- Uptime since the last startup.

### Possible operations

Collapse | The button allows all graphs on the page to be collapsed at once.
Expand | The button allows all graphs on the page to be expanded at once.
Add a column | This button makes it possible to increase the number of columns to be displayed for curves and other information.
Remove a column | This button makes it possible to reduce the number of columns to be displayed for curves and other information.
Go to monitoring configuration | This link allows you to go directly to the monitoring configuration module (refreshment intervals).

### Interactive features

- Clicking on an indicator listed in the legend allows hiding/showing the corresponding data on the graph,
- Scrolling over a curve with a mouse will display the value of the indicator and corresponding time in a tooltip.

## “History” tab

This tab shows a history graph of the firewall's CPU consumption.

### Possible operations

Time scale | This field allows selecting the time scale: last hour, views by day, last 7 days and last 30 days. The last hour is calculated from the minute before the current minute. The view by day covers the whole day, except for the current day in which data run up to the previous minute. The last 7 and 30 days refer to the period that has ended the day before at midnight. The button allows the displayed data to be refreshed.
Display the | In the case of a view by day, this field offers a calendar allowing you to select the date.

### Interactive features

- Clicking on an indicator listed in the legend allows hiding/showing the corresponding data on the graph,
- Scrolling over a curve with a mouse will display the value of the indicator and corresponding time in a tooltip.
- Clicking on the button to the right of each graph will prepare graph data for printing. Comments can be added before you confirm printing (Print button).