remote monitoring system variables?

[Stephen P. Cravey]

I was afraid of that. I'll look more closely into the SNMP MIBS to see
how much of what I need is available. The Issue I have with scripting
SNMP is that the OID numbers for custom scrips seem to be dependant on
how many scripts you are running. I'll verify that, but it looks like I
may be writing some code to handle encrypted (or at least obfuscated)
transmission of sysctl and ipfw data over an authenticated network
connection.

Thanks for the pointers.

-Stephen


On Tue, 18 May 2004 13:36:43 +0100
Matthew Seaman <m.seaman at infracaninophile.co.uk> wrote:

> On Mon, May 17, 2004 at 06:32:42PM -0500, Stephen P. Cravey wrote:
> > I'm tryign to locate a pre-existing method of monitoring FreeBSD
> > systems. Specifically, I'd like a way to monitor sysctl variables,
> > IPFW/PF counters, cpu and ram utilization(in that order). I can
> > write my own interface, however I'd hate to have to reinvent the
> > wheel if there's already something out there. Not to mention the
> > difficulty in figuring out how to build an interface into the ipfw
> > counters. Thanks.
> 
> Most of that can by obtained via snmp -- the net-mgmt/net-snmp port
> would be a good place to start.  You can get the system load and
> memory usage and the number of bytes transmitted via each interface
> straight out of SNMP, but for things like sysctl(8) output or IPFW
> counters, youl'd have to get the SNMP daemon to run an external script
> and return the results.  You can probably figure out how to do that by
> reading the documentation supplied with net-snmp and by playing with
> the configuration file generator snmpconf(1).
> 
> Once you've got SNMP capability available on your server, virtually
> all network monitoring software, including a bunch of large-scale
> commercial monitoring programs, will be able to process and display
> the results.  If your budget doesn't run that far, then there's plenty
> of applications in ports that will do a similar job.  Particularly
> recommended is net-mgmt/mrtg in combination with net/rrdtool -- very
> good for graphing the state of such things over time.
> 
> 	Cheers,
> 
> 	Matthew
> 
> -- 
> Dr Matthew J Seaman MA, D.Phil.                       26 The Paddocks
>                                                       Savill Way
> PGP: http://www.infracaninophile.co.uk/pgpkey         Marlow
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>