[Xymon] Monitoring network traffic

[Schrittenlocher, Rolf]

Hi,


thanks Axel. I just saw that "trends" shows network traffic. So the data is already collected and available on the server. xymon server is Linux, only the clients are Solaris. So someone can tell me how I can access the data either with a client script or on server side?


kind regards

Rolf


Rolf Schrittenlocher

Bibliotheksmanagementsystem IT | IT-Services (ITS)



Universitätsbibliothek Johann Christian Senckenberg

Goethe-Universität Frankfurt  |  Campus Bockenheim

Zentralbibliothek  |  Freimannplatz 1

60325 Frankfurt am Main  |  GERMANY

Telefon Sammelnummer +49 (0)69  798 28830

Telefon persönlich +49 (0)69  798 28908

E-Mail: lbs-it at ub.uni-frankfurt.de

E-Mail (persönlich) r.schrittenlocher at ub.uni-frankfurt.de

Website: https://www.ub.uni-frankfurt.de


________________________________
Von: Axel Beckert <abe at deuxchevaux.org>
Gesendet: Donnerstag, 4. April 2024 10:17
An: Schrittenlocher, Rolf
Cc: Xymon at xymon.com
Betreff: Re: [Xymon] Monitoring network traffic

Hi Rolf,

Schrittenlocher, Rolf schrieb am Thu, Apr 04, 2024 at 07:45:58AM +0000:
> Our challenge at moment is how to monitor traffic quantity in/out in
> order to detect suspicious activities on Solaris 10. Is there are
> way to do this with xymon?

Definitely. ;-)

For our own use (in a university, too :-) and published via Debian's
hobbit-plugins package, I've written a plugin simply called "net"
which can check many network interface characteristics including
monitoring network traffic (calculating bytes/second average from the
rx/tx difference of 10 seconds), but so far it's just for Linux and
uses common Linux commandline tools and
/proc/ links:

https://salsa.debian.org/debian/hobbit-plugins/-/blob/master/src/usr/lib/xymon/client/ext/net

(It also uses the Hobbit.pm Perl module from the same package:
https://salsa.debian.org/debian/hobbit-plugins/-/blob/master/src/usr/share/perl5/Hobbit.pm)

It though shouldn't be too hard to adapt it to some Solaris
commandline tools and their output. I'm just not sure how to convert
the /proc/ stuff. Maybe there's a Linux compat mode like in FreeBSD?
(Haven't touched any Solaris for like 20 years or so, back when I was
a student.)

                Regards, Axel
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