Archive for the 'Monitoring' Category

 

 

May 16 2009

Graph Number of Freeradius Sessions in MRTG

Published by dave under Freeradius,Monitoring

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 [...]

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Apr 10 2009

Monitor AS400 Resources with MRTG

Published by dave under AS400,Monitoring

It is recommended to monitor AS400 CPU load with OID .1.3.6.1.4.1.2.6.4.5.1.0 that returns a value based on 10,000. It needs then to be divided by 100 to get a percentage. The 2nd disadvantage is that the result is slightly wrong, the integer part only being returned. OID HOST-RESOURCES-MIB::hrProcessorLoad.2 from an IBM i5 520 gives the [...]

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Mar 19 2009

Graph Only One Value in MRTG

Published by dave under Monitoring

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 [...]

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