[smokeping-users] Re: Using echoping to monitor several webse rvers

[Lightfoot.Michael]

> -----Original Message-----
> From: Niko Tyni [mailto:ntyni+smokeping-users at mappi.helsinki.fi]
> On Thu, Mar 21, 2002 at 11:02:23AM +1100, Lightfoot.Michael wrote:
> > 
> > I am trying to monitor three webservers using echoping and 
> the HTTP probe
> > module.
 
> The PROBE_CONF section always concerns the target one level higher in
> the tree. This is quite counter-intuitive, but there weren't too many
> possibilities with the current config file format.
> 
Aaah!  Thanks for that.  Sometimes I wish I were a better perl programmer
and could work things out for myself.  ;-)
 
> Kind of strange. There's one obvious mistake in the config
> (comments below), but I think the host 'intranet' should be probed 
> with port=80 and url=/, which seems to be what you want.
> 
Now the Intranet server is being probed, but the dev webserver (on the
smokeping machine) is not.  I suppose it's kind of pointless looking up your
own anus, but I'm partly doing this for management stats as well as for
assisting in network diagnosis.

> Try it with 'smokeping -debug', the EchoPing module will tell you what
> commands it runs. 
> 
I'll try that later today if people would simply go away and stop bothering
me - I hate Fridays.  :-)

> > ++ WWWComcare
> > menu = Comcare Webserver
> > title = Comcare Webserver
> > host = proxy.comcare.gov.au
> > 
> > ++ PROBE_CONF
> > ignore-cache = yes
> > force-revalidate = no
> > port = 8080
> > url = http://www.comcare.gov.au/
> 
> This concerns the whole WebServers branch, not only the WWWComcare.
> 
OK.  I'll move it up above the main webserver and lose the specific stuff.
Will this get rid of the error I keep getting when I try to add port = and
url = to the actual target?

> > ++ WWWIntranet
> > menu = Intranet Webserver
> > title = Intranet Webserver
> > host = intranet
> > 
> > +++ PROBE_CONF
> > ignore-cache = yes
> > force-revalidate = no
> > url = /
> > port = 80
> 
> This should apply to the WWWIntranet branch like you seem to intend.
> 
It now seems to, as stated above.

> > ++ WWWDev
> > menu = Dev Webserver
> > title = Development Webserver
> > host = localhost
> 
> This inherits the WebServers branch variables (port = 8080, 
> url = http://www.comcare.gov.au  etc.)
> 
Probably explains why it doesn't work.  How do I get it to inherit the same
port and url as Intranet?

Perhaps I should explain our network topology a little (some of this is
inherited and *not* the way I would have done it...)

We have a development webserver on our main development system.  It is used
to build the two production webservers and another secure server which I
haven't even tried to monitor yet.

The main Intranet webserver is on the same segment as the dev machine (see
my comments above re not-my-work...)  The main Comcare webserver is in the
DMZ and all access has to pass thru an internal and a DMZ proxy to get to
it.  The secure server is also in the DMZ.

I am FPinging our other main production systems (all on the same segment as
above!!) I am also monitoring the WAN links by FPinging routers and NT
servers in several remote locations.  I have yet to set up checking of our
internal and DMZ smtp servers (which will also be done with EchoPing.)

I also have a plan to monitor some external webservers that our staff
regularly utilise (have to trawl the proxy logs to find the likely
suspects.)


> > One other minor problem.  I have a host which is not in the 
> DNS and needs
> > pinging (with FPing).  When I include it's IP address as 
> the host variable
> > it is not probed.  Is there a way around this?  Do I need 
> to escape some of
> > the characters?
> 
> This works for me, I don't think it's a quoting problem.

It wasn't.  After trying a couple of different quoting strategies yesterday,
I put it back to a simple IP address and it came to life all by itself.
Most disconcerting. :-)




Michael Lightfoot
SysIX Unix Systems Consulting
02 6258 8185
michael.lightfoot at canb.auug.org.au
 

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