nagios service check example
The following is an example of the required configuration for a host that accepts passive checks and has active checks disabled: define host { use generic-host host_name linuxbox01 address 10.0.2.1 JOB, See the HTML : 45 Stop once the headers are downloaded. The following directive allows it: Setting up hosts or services for passive checking requires an object to be defined and set up so as not to perform active checks. VS Code extension | 35 comentarios en LinkedIn More information on how this works can be found here. This command accepts the host name, service description, status code, and the textual output from a check. Nagios can be used to monitor Apache web server as well. Add the file to the standard Nagios Core location, /usr/local/nagios/libexec. How to tell which packages are held back due to phased updates. Now that the syntax is available, TCP port 80 can be checked as follows. i'm very new on that kind of progamming what does this line ", " means i really want to lear some but i need help please helpme. # Sample object config file for Nagios : 3 # 4 # Read the documentation for more information on this configuration file. This is a plugin for Nagios wich you can use to check if a linux service is running. Last updated on September 22, 2020 by Sarmed Rahman. /usr/local/nagios/libexec/check_ping -H 192.168.1.2 -w 100.0,90% -c 200.0,60% .use: These checks can provide useful insight on what is going on within the Nagios server. Service Checks - Nagios Get your subscription here. The following file can be modified to do the job. Add additional tags that should be sent in the HTTP header. First you should define a command in the commands.cfg file. With a little tweaking, Nagios can help monitor this application port as well. In this tutorial, we'll install Nagios on an Ubuntu 19.10 server, but these steps should work on any Debian-based distro. notifications_enabled 0 }. Nagios Core and Nagios XI has a features to monitoring website URL status. The service check runs in a child process that was fork()ed from the main Nagios daemon. 1. (1)Nagios. And in Puppet agent, I have to define the environment (Dev, Test or Prod). 5 check_http Command Examples 1. There are also different types of checks including external applications or devices that want to report information directly to Nagios. Note: Certain nodes in the above example have combined check results, such as memory/virtual, memory/swap, and processes. But today when I am trying to post an XML message to the server, from console it works well but does not work with nrpe. This command accepts the host name, status code, and the textual output from a check. I'd like to use the command line to run that particular check and get the output. The script should then post results to the Nagios daemon. Monitoring Website URL Status I Have problem with the check_http when I try ur command test , I have the next message : Does anyone have a working example of a dependencies.cfg file for nagios? hello.. How can I get it to work with https with Nagios4 and plugins 2.x? The same queue that is used for storing results from active checks is also used to store the results from passive checks. To figure this out I set nagios into debug mode with the configuration like this. Linux Check Service - Nagios Exchange Thus, the difference between active and passive check is that active checks are run by Nagios and passive checks are run by external applications. Services are those which are used by Nagios to check something about a host. The default FQDN used for testing is www.google.com, but it can be changed as needed. Nagios stores the status of the hosts and services it is monitoring to determine if they are working properly or not. Configure Docker Daemon for Remote Connections - kifarunix.com These are real-time graphs showing things like CPU usage, memory usage, and bandwidth. For instance, a model for the file could be: The idea of having that generic file is so that you can check the same on every client. check_command /usr/share/nagios/plugins/check_http -H MYIP -u http://MYIP/test.php, Hi, The provided scripts contain help on the syntax. if one of my checked systems goes down, and therefore fails a PING check, I do NOT need to be notified that a file system is unavailable, or that SSH is down, too. I've deployed a new instance of Nagios on a fresh install of CentOS 7 via the EPEL repository. When Nagios plans and receives results from active checks, it takes the actual network topology into consideration and performs a translation of the states based on this. Restarting Linux Services with NRPE - force.com Nagios Plugins does not include a service plugin however the linux-nrpe-agent does provide check_init_service. They may or may not work on: 44 # your system, as they must be modified for your plugins. This tutorial will cover the process of using some of these scripts for checking common services, such as MySQL, Apache web server, DNS, etc. See Also: Active Checks, Service Checks, Host Checks. The -S option is not working with 2.0 plugins. This defines that check_nrpe is the command and check_root_home_du is the value of $ARG1$. Active checks are initiated by Nagios process and then run on a regular scheduled basis. Examples include server load, number of concurrent processes, number of logged in users via NRPE extension. # SAMPLE HOST CHECK . I wrote a plugin in a bash script to check for current Warnings. For this reason, the only way to perform such a check is to schedule them from the systemfor example, using the cron daemon (visit http://man.linuxquestions.org/index.php?query=cron). The next parameter specifies the number of seconds after which Nagios should consider the results to be out of date. To identify the status of a monitored service, Nagios runs a check plugin on it. In this example we are going to define a service and assign it to localhost, because this check is on Nagios itself. However, applications on remote hosts can't do this so easily. Configuring a Nagios Monitoring System | Scaleway Documentation That is superb artile I was looking for! Based on the condition checked, the plugin can make Nagios aware of a malfunctioning service. Nagios will be configured to monitor SMTP and mail queue of the server. This file location depends on the configuration you've done, in my case it is in /usr/local/nagios/etc/objects/commands.cfg. In many cases, the time taken is not enough, as some checks need to be performed over a longer period of time to have satisfactory results. . It can be used to send results from one Nagios instance to another. Start the Nagios again. It will give you all the available options: This can be done to gather all critical errors to a single, central place. It essentially does the same thing as a debug level of 2048, but can be used on a per-plugin basis. For example, if you are bringing down your HTTP server everyday sometime between midnight and 1:59 a.m, you can specify the above "247-except-night-12-2" timeperiod in your service definition for the check_period and notification_period as shown below for your particular service definition. The host status code should be 0 for an UP state, 1 for DOWN and 2 for an UNREACHABLE state. Remember to allow the execution of the script: if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'howtoforge_com-box-4','ezslot_6',110,'0','0'])};__ez_fad_position('div-gpt-ad-howtoforge_com-box-4-0'); The result is a text message and an exit code: This step will be the same with your own plugins, and if you download a third-party plugin from the internet as well. Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. How to install and configure Nagios Core. The application can also periodically let Nagios know if it succeeded in using the database without problems. (1 + 2 + + 2048), Also note that your debug file will grow quickly and then rotate itself. Check WMI Plus includes a service module that can check if a service is stopped. Set enable_notifications=0 in nagios.cfg. Passive checks are initiated and performed by external applications/processes, Passive check results are submitted to Nagios for processing, Asynchronous in nature and cannot be monitored effectively by polling their status on a regularly scheduled basis, Located behind a firewall and cannot be checked actively from the monitoring host. The following illustration shows how results from active and passive checks are treated differently by Nagios: In both the cases, a check result stating that the host is down is received by Nagios. nagiostats provides statistics of which only the part `Services Ok/Warn/Unk/Crit: 8 / 0 / 0 / 0` are interesting to us, so we are using grep to extract this line. Primary Vendor -- Product Description Published CVSS Score Source & Patch Info; akamai -- cloudtest: Akamai CloudTest before 58.30 allows remote code execution. Yeah, it's totally brute-force, but
