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Questions tagged [nagios]

Nagios (now known as Nagios Core) is a open source monitoring solution. It offers monitoring and alerting services for servers, switches, applications and services.

Nagios is a powerful monitoring system that enables organizations to identify and resolve IT infrastructure problems before they affect critical business processes.

Nagios watches hosts and services that you specify, alerting you when things go bad and when they get better. Some of its many features include monitoring of network services (SMTP, POP3, HTTP, NNTP, ICMP, etc.), monitoring of host resources (processor load, disk usage, etc.), and contact notifications when service or host problems occur and get resolved (via email, pager, or user-defined method).

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How do I use Nagios to monitor a log file

We are using Nagios to monitor our network with great success. However, we have a syslog for critical application errors and while I set up check_log, it doesn't seem to work as well as monitering a device. The issues are: It only shows the last…
Kenoyer130
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Nagios vs Ganglia

Maybe a strange and green question, however Is there anything that Nagios or Ganglia can do that the other can't? In terms of monitoring, alerts in general. I'm looking for a general solution for my school's computer club, in my mind its like…
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Is there a way to extract data from Nagios as if it was a web service?

My situation: I'm working on a web monitoring dashboard that assembles informations from different applications and sources and generate graphs, info graphics and reports. The applications I'm trying to integrate are CACTI, Nagios, and other local…
marcio
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Monitoring URLs with Nagios

I'm trying to monitor actual URLs, and not only hosts, with Nagios, as I operate a shared server with several websites, and I don't think its enough just to monitor the basic HTTP service (I'm including at the very bottom of this question a small…
David W
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CHECK_NRPE: Error - Could not complete SSL handshake

I have NRPE daemon process running under xinetd on amazon ec2 instance and nagios server on my local machine. The check_nrpe -H [amazon public IP] gives this error: CHECK_NRPE: Error - Could not complete SSL handshake. Both Nrpe are same versions.…
Dushyant Gupta
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How to monitor elasticsearch using nagios

I would like to monitor elasticsearch using nagios. Basiclly, I want to know if elasticsearch is up. I think I can use the elasticsearch Cluster Health API (see here) and use the 'status' that I get back (green, yellow or red), but I still don't…
Noam
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Nagios JSON Query Returns Incorrect value

I have installed Nagios (Nagios® Core™ Version 4.2.2) in Linux Server. I have been using JSON Query Generator to generate an Availablity report in JSON format. It will provide an API. I have created a Javascript which will pass this URL to the Ajax…
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Nagios NRPE: Command not defined

In my nrpe_local.cfg added following command: command[check_mycommand]=/usr/lib/nagios/plugins/check_command 30 35 and then restarted nrpe daemon. When I execute this command using nrpe I'm getting the following error: NRPE: Command…
Sandeep
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Change process name when launched as batch file

I'm working on a monitoring system called "Nagios" which monitors services for UNIX and WINDOWS servers. Problem is WINDOWS services that are launched by batch files are named in task manager as "cmd.exe", so system can't distinguish between these…
Sameh Sharaf
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How to send extra info in nagios email

I have setup a nagios monitoring and configured check_http plugin to check for a specific URL in my application. That url returns either 'ok' or an error message. My nagios sends me an email when it detects something not 'ok'. However what I am…
Sergey Golovchenko
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Nagios timeout configuration

How do I set an individual timeout setting per service check. All timeouts default to 60 seconds as per the main configuration but I require that one particular check have a longer timeout due to the execution time. How can this be done? Please…
user338154
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Unable to view ganglia dashboard

I have made ganglia setup using rpm files, OS: centOS 6.3 Server; httpd gmond and gmetad are running, when i load it in browser am getting "Forbidden error" Forbidden You don't have permission to access /ganglia on this server. I can also see…
Sreedhar GS
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Nagios timeperiod and notification period

I'm having troubles getting Nagios to honor a notification_period setting for a predefined timeperiod. My timeperiod definition is called 'sleep' as in, do not notify me between midnight and 7am. it looks like this: define timeperiod{ …
Mike J
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Nagios: CRITICAL - Socket timeout after 10 seconds

I've been running nagios for about two years, but recently this problem started appearing with one of my services. I'm getting CRITICAL - Socket timeout after 10 seconds for a check_http -H my.host.com -f follow -u /abc/def check, which used to…
fulv
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Server monitoring and alerting software?

What software does everyone use to monitor hardware? I know about nagios and cacti, but does anyone use any other software?
DealOrNoDeal
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