[mrtg] Page Top OID value

[Scott Ocken]

I take it there is no such functionality in plain old MRTG rateup?

Thanks
Scott

Quoting Steve Shipway <s.shipway at auckland.ac.nz>:

> If you are using Routers2 as the frontend to MRTG/RRD, then this  
> functionality is being added to v2.21 via the embedded variables in  
> PageTop/PageFoot text.  It is not working in the current beta yet;  
> development was delayed thanks to a car driver trying to drive  
> through my bike while I was riding it but I'll be back working soon.
>
> The planned syntax will be to add something like:  %OID(1.2.3.4)% to  
> the PageTop text and Routers2 will do an on-the-fly SNMP lookup to  
> retrieve that OID from the current device, provided the SNMP details  
> can be identified (SNMPv1 and v2 support only at first).  The  
> drawback of this is that SNMP timeouts could lead to slow page  
> generation when using this feature.
>
> Alternatively, you can already achieve this with routers2 2.21beta1  
> if you are able to code up a script that does the SNMP lookup as  
> v2.21beta allows the %EXEC(programname)% symbol to call an external  
> program and include the output into the generated web page (for  
> security reasons this is disabled by default unless you put an  
> option in the routers2.conf)
>
> Steve
>
> ________________________________________
> From: mrtg-bounces at lists.oetiker.ch [mrtg-bounces at lists.oetiker.ch]  
> On Behalf Of Scott Ocken [scott at infobunker.com]
> Sent: Thursday, 19 November 2009 11:41 a.m.
> To: mrtg at lists.oetiker.ch
> Subject: [mrtg] Page Top OID value
>
> Is there a way to put an OID SNMP GET/WALK value in the PageTop?
>
> I have graphs for a Chiller Fluid Temp In/Out and want to put the
> Setpoint in Plain text in the PageTop.  This might change, so I don't
> want to manually put it in the PageTop.  I would be fine with writing
> a script to write the text, but I don't see a way to set PageTop = the
> output from a script.
>
> Thanks
> Scott


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