remote monitoring system variables?
Stephen P. Cravey
cravey at gotbrains.org
Tue May 18 16:13:10 PDT 2004
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
Thanks for the pointers.
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.
> Dr Matthew J Seaman MA, D.Phil. 26 The Paddocks
> Savill Way
> PGP: http://www.infracaninophile.co.uk/pgpkey Marlow
> Tel: +44 1628 476614 Bucks., SL7 1TH
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