[nEdge] Make Traffic Quota persistent after service restart

[cory-usap]

Environment:

• OS name: Ubuntu
• OS version: 20.04
• Architecture: amd64
• ntopng version/revision: v.6.2.241209

What happened:

If we restart the server or do a systemctl restart nedge then the traffic quota gets reset to 0

How did you reproduce it?

Set a users daily/weekly/monthly traffic quota to a > 0 value.

Download items that put them over the threshold.

Restart server/service. User now shows 0 quota and can download again.

Notes

I noticed this issue #8706 which is in-relation to RADIUS however we do not have RADIUS configured.

Is the only way to persist traffic bandwidth accounting is with a RADIUS server?

[cardigliano]

@cory-usap this is expected with the current implementation/design