Netexpertise

You can easily graph your Freeradius number of active sessions with a simple shell script if you store accounting data in a SQL database.
Use the script below for Mysql:
 

#!/bin/bash

SQL_USERNAME=radius_username
SQL_DATABASE=radius
SQL_PASSWORD=your_password
SQL_SERVER=127.0.0.1
SQL_ACCOUNTING_TABLE=radacct
BACK_DAYS=5

SESSIONS=`mysql -BN -u$SQL_USERNAME -p$SQL_PASSWORD -h $SQL_SERVER $SQL_DATABASE -e \
“SELECT COUNT(*) FROM $SQL_ACCOUNTING_TABLE \
WHERE acctstoptime IS NULL \
AND Acctstarttime > NOW() – [...]

Tags: active, Freeradius, graph, monitor, mrtg, number, session

MRTG needs at least 2 values to generate graphs. Thus, Most configurations contain the same OID twice in the target line.
This leads to 2 problems:
- The same data is collected twice which requires more bandwidth, especially when a large number of hosts is monitored

- The value may vary during this very short lap, producing 2 [...]

Tags: CPU, graph, memory, mrtg, OID, one, snmp, snmpget, value

Radius servers generate a lot of accounting records. Is it worth keeping them? Damn yeah! Beside the fact they could be used to check if a customer was connected at a given date, or find out who got IP address X.X.X.X that same day, the most interesting is to generate traffic reports and show customers [...]

Tags: accounting, billing system, Freeradius, graph, linux, Mysql, Oracle, Postgresql, radius, report, reporting, SQL, traffic