Same status

[Carroll, Jim P [Contractor]]

I've been pondering SNMP as an alternative to NRPE.  If I were to take this
approach, I presume I need the following:

- the SNMP software components need to be installed on the Nagios server as
well as for any client I wish to monitor (should be obvious, but I didn't
want to skip over this ;)
- proper config of SNMP so that it's functioning client/server
- the check_snmp plugin should be built properly
- I'm guessing I need a MIB for whatever aspect I'm trying to monitor...?
E.g., o/s, hardware, specific application
- the biggest gap is w.r.t. what a service definition would look like; if
you could post a couple examples (eg, memory, disk) that would be most
excellent, sir :)

For further reference, it would be great if you could take me through the
creation of a single definition, from the "gee, I'd like to monitor service
XYZ on host xyzygy" to looking up the MIB details (or snmpwalk or whatever's
required), that'd be great!

TIA,

jc

> -----Original Message-----
> From: Karl DeBisschop [mailto:karl at debisschop.net]
> Sent: Monday, January 13, 2003 8:37 PM
> To: Chris Stankaitis
> Cc: Justin; Nagios Users
> Subject: Re: [Nagios-users] Same status
> 
> 
> On Mon, 2003-01-13 at 09:02, Chris Stankaitis wrote:
> > This is an active vs. passive check thing... An Active 
> check is one that 
> > is started on the nagios server.... some of these can handle remote 
> > hosts, ping, ssh, smtp, pop, http, time etc... those you 
> can run from 
> > nagios and everything will be happy for all your different hosts.
> > 
> > Things like current user, load, disk space,  processes, 
> can't be run 
> > from the nagios server with regards to collecting this 
> information from 
> > remote hosts by default.  to do this you need to set up 
> passive checks, 
> > and somehow get the information from the client to the host (nagios 
> > server) this can be acomplished by mutiple ways...
> > 
> > 1) NRPE - open connection runs on each clent, nagios 
> connects to the 
> > port and gets the info you want
> > 2) NSCA - open connection runs on NAGIOS server and clients send 
> > information to the nagios server encrypted
> > 3) check_by_ssh using the SSH's ability to execute commands to run 
> > commands on the client and pulls back results
> 
> If you are in an isolated LAN (i.e., you have a failrly 
> decent firewall
> and you put ACLs on your servers) there is also check_snmp. It's my
> personal favorite becuase it has great funtionality, near 
> zero setup in
> my RH73 servers, and very low overhead.
> 
> Justin's options are fine too - just missed one (I'm sure 
> there are more
> too).
> 
> --
> Karl
> 
> 
> 
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