Configuring Swap Rate on Zenconsole
The 'Health Check' functionality of Zenarmor facilitates an hourly, continuous examination of the system's swap utilization. Setting swap utilization in Zenarmor enables you to operate your next-generation firewall engine securely. In the event that the swap utilization percentage exceeds the user-specified value ( %60 by default), the engine is halted and an error message is displayed to the user.
By default, %60 of total swap usage is considered safe for Zenarmor operation. You can configure the Maximum Swap Utilization (% of total SWAP) by following the next steps:
- Select the firewall on on Zenconsole web UI.
- Navigate to the Settings > Health.
- Set the swap rate by scrolling left or right on the bar. When swap utilization on your system reaches this rate, the Zenarmor packet engine will be stopped.
Figure 1: Changing Maximum Allowed Swap Size For Zenarmor.
Please note that this is not Zenarmor` SWAP usage; rather it is the overall system SWAP usage and may be the result of other memory-intensive applications that are running on the system. To see which processes are using the resident memory, you can use the following command:
top -ao res