How to configure sending traps

Hi there,

I've been trying to configure net-snmp to send a trap when the disk utilisation on any mount point reaches a certain threshold, say 80% of total capacity.

I've read the documentation here:

https://access.redhat.com/documentation ... eving.html<https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Deployment_Guide/sect-System_Monitoring_Tools-Net-SNMP-Retrieving.html>

but when I attempt to review the available parameters in HOST-RESOURCES-MIB::hrStorage by issuing the following command, I get an error suggesting the table is not recognised:

> snmptable -Cb localhost HOST-RESOURCES-MIB::hrStorage
Was that a table? HOST-RESOURCES-MIB::hrStorage

Can anyone advise how I go about doing this with a 'monitor' statement inside of /etc/snmp/snmpd.conf? I also read the wiki here:

http://www.net-snmp.org/wiki/index.php/ ... Monitoring<http://www.net-snmp.org/wiki/index.php/TUT:DisMan_Monitoring>

But although there is a subsection on disk montioring, there is no related content to explain how to do this!

Eventually I need to get traps working for:


·         memory utilisation (send trap when memory utilisation > 80%)

·         cpu load averages (send trap when 5 minute load average is >= 100%)

·         process not running (send trap when httpd is no longer running).

·         Disk utilisation (send trap when any mount point is utilised > 80%)

Would appreciate some advice on how to do this as information online appears to be surprisingly scant and I'd expect this would be a very common requirement?

Many thanks,

James

====
Versions:

CentOS Linux release 7.1.1503 (Core)

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Installed Packages
net-snmp.x86_64 1:5.7.2-20.el7 @0-base
net-snmp-agent-libs.x86_64 1:5.7.2-20.el7 @0-base
net-snmp-libs.x86_64 1:5.7.2-20.el7 @0-base
net-snmp-utils.x86_64 1:5.7.2-20.el7 @0-base
Available Packages
net-snmp-agent-libs.i686 1:5.7.2-20.el7 0-base
net-snmp-devel.i686 1:5.7.2-20.el7 0-base
net-snmp-devel.x86_64 1:5.7.2-20.el7 0-base
net-snmp-gui.x86_64 1:5.7.2-20.el7 0-base
net-snmp-libs.i686 1:5.7.2-20.el7 0-base
net-snmp-perl.x86_64 1:5.7.2-20.el7 0-base
net-snmp-python.x86_64 1:5.7.2-20.el7 0-base
net-snmp-sysvinit.x86_64 1:5.7.2-20.el7 0-base

James McGuire
Infrastructure Support Engineer

redcentric
business technology. managed

Support: 0345 120 7070 or +44 1189 711582 from abroad
Email: [email protected]
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