Otherwise we must rely on parsing the # output from the service management tool. You can check whether a SSL certificate of the website expires within the next X number of days as shown below. http://www.waggy.at/nagios/capture_plugin.htm, Go to your plugin directory - in my example it is, Type you plugin name - in my example it is, now run the full command - (plugin name) -H (hostname) -p (port number), However in this example port number is optional, in your config file which is look something like below (myserver.cfg) and you want to run check_cpu from command line, to check instantly (without GUI green or red), Try this - (plugin full path) - H (servername) -c (checkname). Pass the specified string as User Agent in HTTP header. In such a case, checks are done by other programs, and their results are sent to Nagios. Add additional tags that should be sent in the HTTP header. To identify the status of a monitored service, Nagios runs a check plugin on it. Set enable_notifications=0 in nagios.cfg. In the Select resource macro: section, select USER1. Testing the Commands from Nagios XI Server Now we will test from the Nagios XI server that the command you just added to the NRPE client on the Linux server is working. Active checks can be used to "poll" a device or service for status information every so often. Active checks are most common in the Nagios world. Using the definition below, checks on the host will be performed after every 3 minutes. You can submit passive (means Nagios is not the inventor of the actual check commands) check results to a Nagios server instead of having the Nagios actively polling. See Also: Active Checks, Host Checks, Check Scheduling, Predictive Dependency Checks. can nagios adjust its check time based on the status info? Securely download your document with other editable templates, any time, with PDFfiller. Nagios can check whether the server is online by running ping on the IP/name of the server as well as it can be set up to provide warnings in case the round trip time (RTT) to the server increases. The Nagios plugin can be remotely executed on other Linux/Unix machines using NRPE. More information on cached checks can be found here. Nagios also offers a way of combining the benefits of both active and passive checks. Nagios check service frequency based on service status, how can execute nagios commands from command line in linux. Examples include server load, number of concurrent processes, number of logged in users via NRPE extension. Nagios' check_ssh (of course) keeps marking the process as critical since it can't connect on that port. Once again, we are dealing with open source software, and Nagios purpose is aimed at monitoring computer systems. Nagios server in this example is hosted on 192.168.0.150 and an example client is hosted on IP 192.168.0.200. The key features of passive checks are as follows: The major difference between active and passive checks is that active checks are initiated and performed by Nagios, while passive checks are performed by external applications. Nagios ()_DevilRex119_51CTO They have a lot of advantages and some disadvantages. Remember that the $USER1$ variable, is a local Nagios variable set in the resource.cfg file, in my case pointing to /usr/local/nagios/libexec.

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