I checked log: /usr/local/nagios/var/nagios.log the interval between ping times is 90 seconds. Monitoring switches and routers can either be easy or more involved - depending on what equipment you have and what you want to monitor. check_ping command is a Nagios plugin that is used to check the ping output of a remote server. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. # 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 . ', referring to the nuclear power plant in Ignalina, mean? How To Monitor Network Switch and Ports Using Nagios - The Geek Stuff The most flexible way to process performance data is by having Nagios execute commands (that you specify) to process or redirect the data for later processing by external applications. Error 1: If you dont specify warning threshold limit, youll get the following error message: Error 2: If you dont specify % at the end of threshold limit pair, youll get the following error message: Error 3: If you dont specify critical threshold limit, youll get the following error message: Error 4: If the warning threshold limit values is greater than the critical limit value, youll get the following error message: Error 5: If the specify -6 and give a IPv4 address, youll get the following error message: Next post: 8 Linux Bash Shell Readline Bind Command Examples, Previous post: How to Change RabbitMQ Log Level in rabbitmq.config from INFO to ERROR, Home | Linux 101 Hacks Table of Contents | Contact | Email | RSS | Copyright 20092022 Ramesh Natarajan All rights reserved | Terms of Service, 8 Linux Bash Shell Readline Bind Command Examples, How to Change RabbitMQ Log Level in rabbitmq.config from INFO to ERROR, Round trip average, which is called as RTA. service_description PING. @MrCleanX - I've read a few blog posts suggesting I check that. There should be no reference to /usr/bin/ping in that output, even when failing. Why do men's bikes have high bars where you can hit your testicles while women's bikes have the bar much lower? Community Support Forums For Nagios Open Source Projects, Community Support Forums For Nagios Commercial Products, https://assets.nagios.com/downloads/nag gmain.html. Install the Nagios Service", Collapse section "3.1. My /etc/nagios/objects/commands.cfg states, which defines the arguments in between the exclamation marks as in the documentation example you gave. Nagios should be hosted on a securely locked down server, especially if security events are being monitored. This document describes how you can monitor the status of network switches and routers. You'll need to let the check_mrtgtraf plugin know what log file the MRTG data is being stored in, along with thresholds, etc. How a top-ranked engineering school reimagined CS curriculum (Ep. How to Make a Black glass pass light through it? To do this, you'll need to verify your configuration and restart Nagios Core. The configuration we've added adds a simple service check definition for an existing host, to check up to three times whether the HTTP daemon on that host is responding to a simple HTTP/1.1 request. Like i have written below two command one for ping and one for swap. Troubleshoot Instance Launching Errors in the Dashboard, 4.6. If you create the same check in the host cfg, then it'll override the hostgroup check. Make sure the plugin exists in /usr/local/nagios/libexec before you continue. By using decimals in your check_interval I have a feeling it's throwing the math off. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. As of May 25th, 2018, all communications with Nagios Enterprises and its employees are covered under our new. An example command definition that redirects service check performance data to a text file for later processing by another application is shown below: Tip: This method, while flexible, comes with a relatively high CPU overhead. Any suggestions of what I can look at, I am out of ideas. This should be specified as %age. The best answers are voted up and rise to the top, Not the answer you're looking for? Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. All rights reserved. Chapter 3. Monitoring Using Nagios - Red Hat Customer Portal Remember, you only need to do this for the *first* switch you monitor. Creating a new HTTP service | Nagios Core Administration Cookbook - Packt For the time being, just follow the directions outlined below and you'll be monitoring your network routers/switches in no time. Open nagios web interface and see the host is being pinged properly. Start check_tcp with -h to see the help for it. with the check_snmp plugin and bandwidth (if you're using MRTG) with the check_mrtgtraf plugin. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Thx. What differentiates living as mere roommates from living in a marriage-like relationship? In the example above, the "/var/lib/mrtg/192.168.1.253_1.log" option that gets passed to the check_local_mrtgtraf command tells the plugin which MRTG log file to read from. I was already tired of editing these humongous text files, and this just made it so easy. 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. Nagios, the Nagios logo, and Nagios graphics are the servicemarks, trademarks, or registered trademarks owned by Nagios Enterprises. rev2023.4.21.43403. Increased server, services, and application availability, Fast detection of network outages and protocol failures. I know that it may be possible to exclude certain hosts from a group, but this won't work for me as a hostgroup may have multiple services in it, and I won't want to have all of those services removed from the host. I also find it non-intuitive to have to maintain a list of exclusions separate to where the host itself is actually defined. snmpwalk -v1 -c public 192.168.1.253 -m ALL .1. The "-r 1" option tells the check_snmp plugin to return an OK state if "1" is found in the SNMP result (1 indicates an "up" state on the port) and CRITICAL if it isn't found. The thing you post is a Nagios command. Connect and share knowledge within a single location that is structured and easy to search. Learn more about Stack Overflow the company, and our products. A boy can regenerate, so demons eat him for years. Which ability is most related to insanity: Wisdom, Charisma, Constitution, or Intelligence? The "10" option causes the plugin to return a CRITICAL state if the MRTG log file is older than 10 minutes (it should be updated every 5 minutes). This type of performance data is available for all checks that are performed. Eg. In the following example, it sends 10 ICMP ECHO packets to the remote host before its output is measured. check-host-alive is defined in commands.cfg to use check_ping. What is scrcpy OTG mode and how does it work? Content Discovery initiative April 13 update: Related questions using a Review our technical responses for the 2023 Developer Survey, Can execute nagios ssh check manually but get 126/127 out of bounds error from nagios, Different Nagios email notifications for different services, Nagios host notifications not sending via email or logging, Nagios - "Unable to send check for host" or "run check for service". NSClient++ allows you to check multiple services, here is an example that checks for two services that are running. However, if you are using an external addon to process the performance data (i.e. To learn more, see our tips on writing great answers. 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. 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. Any complicated monitoring can be placed into a script, and then referred to in the command definition. The following installation procedure installs: Install the required packages as the root user, using the yum command: If any of the packages are not immediately available (for example, gd-devel or gcc), you might have to enable the optional Red Hat channel using subscription-manager: Consider deploying Nagios to a server that is external to the OpenStack environment, allowing it to receive diagnostic information in the event of system issues. The "AVG" option tells it that it should use average bandwidth statistics. Adjust this to say, 10. host_name server1. "Signpost" puzzle from Tatham's collection, What "benchmarks" means in "what are benchmarks for? I can ping the nagios server and the nagios server is able to ping the server. The first time you configure Nagios Core to monitor a network switch, you'll need to do a bit of extra work. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Is there a plugin named check_hosts? once I passed the correct IP protocol , It worked fine. Can you still use Commanders Strike if the only attack available to forego is an attack against an ally? They're great. Modify host_name appropriately. The interval at which these commands are executed are governed by the host_perfdata_file_processing_interval and service_perfdata_file_processing_interval options, respectively. Looking at the check_ssh man page doesn't seem to indicate in what order to place these switches You can define a command and use that command for your service. Browse other questions tagged. If not, youll get an error. They are: To make your life a bit easier, a few configuration tasks have already been done for you: The above-mentioned config files can be found in the /usr/local/nagios/etc/objects/ directory. How a top-ranked engineering school reimagined CS curriculum (Ep. There are a million things that can be monitored via SNMP, so its up to you to decide what you need and want to monitor.
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