That's it for the SNMP monitoring example. by rkennedy Tue Aug 16, 2016 4:51 pm, Post : In your host template set a default value: In the host definition that should use a difference value set e.g. The best answers are voted up and rise to the top, Not the answer you're looking for? Everything in that folder should be at 0755. Support forum for Nagios Core, Nagios Plugins, NCPA, NRPE, NSCA, NDOUtils and more. If Nagios Core can't get a response to its check, then it will flag the state of the service as CRITICAL, and will try again up to two more times before sending a notification. Was Aristarchus the first to propose heliocentrism? By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Thanks for contributing an answer to Stack Overflow! ms|rta=0.627000ms;3000.000000;5000.000000;0.000000 pl=0%;80;100;0. Based on the ping output, you can decide to set certain warning and critical threshold level, based on which Nagios can send notifications to you. Any complicated monitoring can be placed into a script, and then referred to in the command definition. In addition, there are a number of points to review for optimal Nagios placement: NRPE (Nagios Remote Plugin Executor) plugins are compiled executables or scripts that are used to check the status of a hosts service, and report back to the Nagios service. Knowledge Base Nagios servers may receive a considerable amount of network traffic, resulting in resource contention. I've deployed a new instance of Nagios on a fresh install of CentOS 7 via the EPEL repository. Then, in your check_interval change it to 3, and retry interval of 2. Find A Partner, Phone: 1-888-NAGIOS-1 Configure Nagios so that performance data is either written to files and/or processed by executing commands. Bare Metal Provisioning (ironic) Log Files, 1.1.5. Why are players required to record the moves in World Championship Classical games? Making statements based on opinion; back them up with references or personal experience. Like i have written below two command one for ping and one for swap. This tutorial explains how you can use check_ping command with some basic examples. # Service definition to ping the switch using check_ping define service{ use generic-service hostgroup_name switches service_description PING check_command check_ping!200.0,20%!600.0,60% normal_check_interval 5 retry_check_interval 1 } # Service definition to monitor switch uptime using check_snmp define service{ use generic-service hostgroup . NSClient++ allows you to check multiple services, here is an example that checks for two services that are running. Is there a plugin named check_hosts? Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. The warning limit is 10ms RTA or 2% packet-loss. Host is just like a computer; it can be a physical device or virtual. 4.0.8 . I'm not sure if this is common use or not, but this article blew my mind when it came to setting up the config files. The sample configuration entries below reference objects that are defined in the sample config files (commands.cfg, templates.cfg, etc.) Any suggestions of what I can look at, I am out of ideas. Open nagios web interface and see the host is being pinged properly. since there is no predefined argument to specify the port, like --port=$ARG1$ in the definition, but only a generic place holder. Maybe you could look there and get credit for the answer if you have ideas. Learn more about Stack Overflow the company, and our products. What is the symbol (which looks similar to an equals sign) called? The MRTG log file is stored in /var/lib/mrtg/192.168.1.253_1.log. Careers. Monitoring Using Nagios", Expand section "3.1. To learn more, see our tips on writing great answers. Tell Nagios which hosts are being monitored. So for example, I'd like to have a host in the linux-server host group, which inherits several services (SSH, Disk, PING, etc), but for specific services I want to override with their own unique values, define a service specific to that host, with custom values. Understanding the probability of measurement w.r.t. Nagios - how does native service such as check_ping monitor remote host In your ping service definition use e.g. Tip: You can usually find the OIDs that can be monitored on a switch by running the following command (replace 192.168.1.253 with the IP address of the switch): ", Adding EV Charger (100A) in secondary panel (100A) fed off main (200A). However, I'd recommend waiting until you're more familiar with configuring Nagios Core before doing so. It was installed on Debian by using 'apt-get install nagios-plugins', and on Redhat/Fedora via RPM, such as nagios-plugins-2.2.1-4git.fc26.aarch64.rpm. If you want to have more granular (free) monitoring, check out InfluxDB, Telegraf and Grafana. The "-m RFC1213-MIB" is optional and tells the check_snmp plugin to only load the "RFC1213-MIB" instead of every single MIB that's installed on your system, which can help speed things up. By using decimals in your check_interval I have a feeling it's throwing the math off. by cornelp Mon Aug 29, 2016 8:42 am, Powered by phpBB Forum Software phpBB Limited. What is Wario dropping at the end of Super Mario Land 2 and why? Write a short script for the item to be monitored (for example, whether a service is running), and place it in the /usr/lib64/nagios/plugins directory. I'm not much of a nagios expert, but I do love it. On the central Nagios server, in the commands.cfg configuration file, define the new checks. Remote Logging Installation and Configuration", Collapse section "1.3. Asking for help, clarification, or responding to other answers. When the host goes down, no matter what numbers I use, It will not send an alert until 1.5 minutes later. I can ping the nagios server and the nagios server is able to ping the server. If your switch supports SNMP, you can monitor port status, etc. If you dont pass any arguments to the check_ping command, it will show all available options as shown below. I tried that as well, but ran into a different issue. check_ping command is a Nagios plugin that is used to check the ping output of a remote server. "Signpost" puzzle from Tatham's collection, Using an Ohm Meter to test for bonding of a subpanel. Some cheaper "unmanaged" switches and hubs don't have IP addresses and are essentially invisible on your network, so there's not any way to monitor them. Add OpenStack monitoring to the local server. Shared Filesystem Service (manila) Log Files, 1.1.14. Data Processing (sahara) Log Files, 1.1.6. In my localhost.cfg I have tried: where xxx22 is the actual port. The check_ping command just validates the availability of a system via an ICMP ping packet. Media Coverage I am currently running 3.4.1, so I would think this should be working. Monitoring switches and routers can either be easy or more involved - depending on what equipment you have and what you want to monitor. OpenStack Dashboard - Red Hat Access Tab. Nagios services can have high CPU overhead if SSH is used. Connect and share knowledge within a single location that is structured and easy to search. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. I'll describe how you can monitor the following things on managed switches, hubs, and routers: Note: These instructions assume that you've installed Nagios according to the quickstart guide. It's not running 'on' the remote host - the check_ping command is running a ping on the nagios server against the remote host. Monitoring Using the Telemetry Service, 3.2.2. To learn more, see our tips on writing great answers. Currently, I'm defining my group-level PING service like so: I know it's an old post, but I just ran across this question while I was looking for something else. What is the Russian word for the color "teal"? What differentiates living as mere roommates from living in a marriage-like relationship? Remote Logging Installation and Configuration", Expand section "2. Nagios is designed to allow plugins to return optional performance data in addition to normal status data, as well as allow you to pass that performance data to external applications for processing. So in it's host cfg, I have: Now the service check is going to alert you for 80% and 90% for all hosts in the hostgroup, except for the host that you added the check with the change values in it. The object file localhost.cfg allows for parameters to be passed to check_ssh. How a top-ranked engineering school reimagined CS curriculum (Ep. The state information delivers "Usage: " which is an indicator that the parameters are wrong. If this is the *first* switch you're monitoring, you can simply modify the sample host definition in switch.cfg. Engage with the community of users including those using the open source solutions. Could you add more details? linux - How to send alert in nagios for particular service to So, you really dont need to specify -4 (which is optional). define service { use generic-service ; Name of service template to use host_name Host-1 service_description PING check_command check_nrpe!check_ping } define service { use . An example file format template for service performance data might look like this: By default, the text files will be opened in "append" mode. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. If the verification process produces any errors messages, fix your configuration file before continuing. 5 Nagios check_ping Command Examples to Monitor Remote Host But, when you use IPv6 address, you should use -6 as shown below. Host or Service Check Interval (SOLVED) - Nagios Support Forum There are no attachments for this article. The plugin can only check if the service is started, you could however use the negate plugin to invert the returned result from the plugin (hence making "stopped" have an OK state). If you like to change this, use -t option. Performance Data - Nagios What were the poems other than those by Donne in the Melford Hall manuscript? Asking for help, clarification, or responding to other answers. By default, it will use IPv4. rev2023.4.21.43403. For the *first* router/switch you monitor, you can simply modify the sample host and service definitions in that file, rather than creating new ones.
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