Devmon / MRTG
mv652 at softhome.net
mv652 at softhome.net
Tue Aug 18 09:55:27 CEST 2009
That's helped to explain things very nicely, thank you.
I am, in fact using CENTOS, so should have it setup quite soon.
I'll place any futrure devmon questions in the relevant lists.
Buchan Milne writes:
> On Friday, 14 August 2009 15:08:33 mv652 at softhome.net wrote:
>> Could I get a quick-and-dirty explanation regarding the Devmon
>> implementation in Xymon 4.3.x?
> Nothing has changed regarding Devmon in Xymon 4.3.x.
> However, Xymon itself has some basic native SNMP support, which is new in
>> The way I understand it, Devmon provides SNMP capabilities to Xymon so the
>> monitoring server can poll SNMP capable devices.
>> How is this different to Integrating MRTF data into XYMON, for example?
> Devmon only polls devices, does conversion and formatting of data, which it
> then sends to Xymon as a normal status message. A devmon RRD collector is now
> shipped with Xymon (as of 4.2.2), that allows RRD graphs to be created by
> Xymon for any test/template that includes data intended for this purpose
> (using the rrd option to the TABLE operator in the template file on the devmon
> side), if the test is mapped to use this collector (in the TEST2RRD variable
> in hobbitserver.cfg).
> Besides the graphs, devmon will also change the "colour" of the tests based on
> thresholds, allowing you to alert on SNMP data (including non-graph data).
>> If I am interesting in getting bandwidth for various device interfaces, I
>> am assuming it is best to do via Devmon rather than integrate MRTG?
> I think it is probably easier to get bandwidth graphs up with Devmon than with
> MRTG, and alerts based on link utilisation will be available out-the-box.
>> Lastly, is there a readme / howto that explains devmon-xymon setup?
> If you're on a distro that provides devmon, it is more or less a matter of:
> # $install devmon
> (where install=urpmi for Mandriva, or $install="yum install" on RHEL or CentOS
> if you have added the repo at e.g.
> # vi /etc/devmon.cfg
> (set your SNMP community strings in the SNMPCIDS variable, the others should
> have adequate defaults)
> # /etc/init.d/devmon readbbhosts
> # /etc/init.d/devmon start
> If you're adventurous, you could add the weathermap (see
> If you're not on a distro with packages available, please see the INSTALLATION
> and USING files shipped in the docs directory.
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