[CentOS] - monitoring software

[SilverTip257]

On Fri, Oct 18, 2013 at 1:34 PM, John R Pierce <pierce at hogranch.com> wrote:

> On 10/18/2013 5:49 AM, Paolo De Michele wrote:
> > I have a dedicated server with several services running: ssh, ftp, httpd
> > (with several sites andactive domains), the mail server (dovecot,
> > postfix), dns.
> >
> > I'd like to monitor all of these services in a graphical, easy, setting
> > of thresholds and alerts via email.
> > I would also like that if a customer wanted to see the graphs I could
> > create codes read-only.
>
> to echo whats already been said, and perhaps clarify...
>
> Nagios is the classic alert package.   while its usually run on a
> dedicated server and monitors a bunch of other servers, it certainly can
> be used on a single system.   But, Graphing in Nagios is a bit of a pain.
>
> Cacti is a excellent graphing package, same thing, its usually run on a
> central server that monitors lots of stuff on other servers, it can be
> run on the same machine.   however, setting up alerts in Cacti is
> difficult.    You may find older references to 'mrtg', well, mrtg was
>

Are you referring to this Cacti plugin [0] or something else?

[0] http://docs.cacti.net/plugin:monitor


> rewritten as rrdtool, and rrdtool is the basis of Cacti.
>
> both of these systems have web based displays, and use 'agent' based
> data collection.   Its not unusual to use both at once for their
> respective strong points.
>

My thought exactly.  Use each one for the job it was designed for (and good
at).


>
> with any of these systems, you typically have a line in the agent script
> for each thing you want to monitor on a given host.   utility scripts
> such as check_postgresql.pl let you get extensive data out of postgres
> databases
>
>
>
> --
> john r pierce                                      37N 122W
> somewhere on the middle of the left coast
>
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-- 
---~~.~~---
Mike
//  SilverTip257  //