What should I follow, if two altimeters show different altitudes? rev2023.4.21.43403. Configure rsyslog on the Centralized Logging Server, 1.3.4. Configure Nagios to Monitor OpenStack Services, 3.2.5. If this is the *first* switch you're monitoring, you can simply modify the sample host definition in switch.cfg. For example: Each defined command can then be specified in the services.cfg file on the Nagios monitoring server. If the host responds to the ping, then it is 'OK'. I currently am experimenting with defining a set of services to all hosts in a hostgroup, this is working fine. I also find it non-intuitive to have to maintain a list of exclusions separate to where the host itself is actually defined. The commands that Nagios executes to process host and service performance data are determined by the host_perfdata_command and service_perfdata_command options, respectively. On what basis are pardoning decisions made by presidents or governors when exercising their pardoning power? Why do men's bikes have high bars where you can hit your testicles while women's bikes have the bar much lower? Troubleshoot Networks and Routes Tab Display Issues in the Dashboard, 4.5. I can't remember when (or why) I started using check_host, but that's indeed what I'm currently using. An example command definition that redirects service check performance data to a text file for later processing by another application is shown below: What differentiates living as mere roommates from living in a marriage-like relationship? Log Files for OpenStack Services", Collapse section "1.1. I haven't changed the definition of how check_ping works, and can confirm that I'm getting a "PING OK" whenever the command is run the same way that check-host-alive runs the command, so I cannot figure out what's going on! 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. If you create the same check in the host cfg, then it'll override the hostgroup check. Orthogonally defining services and contacts for a host/hostgroup? Short story about swapping bodies as a job; the person who hires the main character misuses his body. But when integrating with Nagios server, I could not able to pass this value as an argument. "Signpost" puzzle from Tatham's collection, What "benchmarks" means in "what are benchmarks for? Nagios provides complete monitoring of Ping - including reachability and packet loss. Thanks for contributing an answer to Unix & Linux Stack Exchange! The Nagios server will receive traffic from a broad scope of systems. You told Nagios to look to the /usr/local/nagios/etc/objects/switch.cfg to find additional object definitions. Threshold limit for check_ping should be passed as a threshold pair, which has two parts: In the following example, we are checking the ping output for 192.168.1.1 host. They're great. Note: The Nagios daemon doesn't directly process plugin performance data, so it doesn't really care what the performance data looks like. There are no attachments for this article. If total energies differ across different software, how do I decide which software to use? NSClient++ includes a service module that can check if a service is running. linux - How to send alert in nagios for particular service to I'm a little bit wary of going to chmod the ping binary (which is what most blog posts have suggested). Thanks for contributing an answer to Server Fault! By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Knowledge Base The "5000000,5000000" are critical thresholds (in bytes) for incoming and outgoing traffic rates respectively. Asking for help, clarification, or responding to other answers. News Add OpenStack monitoring to the local server. There aren't really any inherent limitations on the format or content of the performance data. Testimonials Check web-interface user name and password, and check basic configuration. As they are critical infrastructure components, you'll no doubt want to monitor them in at least some basic manner. by tmcdonald Wed Aug 17, 2016 2:31 pm, Post However, it doesn't describe in which order to pass parameters. Now you can add some service definitions (to the same configuration file) to monitor different aspects of the switch. by cornelp Tue Aug 16, 2016 1:47 pm, Post To learn more, see our tips on writing great answers. What is the symbol (which looks similar to an equals sign) called? Assuming we are using the host definition given earlier and a check_ping command defined like this: define command { command_name check_ping command_line /usr/local/nagios/libexec/check_ping -H $HOSTADDRESS$ -w $ARG1$ -c $ARG2$ } The expanded/final command line to be executed for the service's check command would look like this: Plugin performance data is external data specific to the plugin used to perform the host or service check. You can modify the definitions in these and other definitions to suit your needs better if you'd like. 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. Nagios' check_ssh (of course) keeps marking the process as critical since it can't connect on that port. The OP is still lurking. Install and configure NRPE on each remote machine (that has services to be monitored). The Industry Standard In IT Infrastructure Monitoring. I was fairly certain that running chmod U+s /usr/bin/ping would solve the issue, but I was (and still am) wary about chmod'ing system files. This value can be viewed in the /etc/nagios/cgi.cfg file. Monitoring Using Nagios", Expand section "3.1. define service{ use generic-service ; Inherit values from a template host_name linksys-srw224p ; The name of the host the service is associated with service_description PING ; The service description check_command check_ping!200.0,20%!600.0,60% ; The command used to monitor the service normal_check_interval 5 ; Check the service every 5 minutes . 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. The "AVG" option tells it that it should use average bandwidth statistics. by cornelp Mon Aug 29, 2016 8:08 am, Post Learn more about Stack Overflow the company, and our products. By default, on the Nagios server, the /etc/nagios/objects/localhost.cfg file is used to define services for basic local statistics; for example, swap usage or the number of current users. Unfortunately, my host checks are failing (although my service checks are working perfectly fine). If it doesn't, skip this section. To do this, you can include the service in the server1.cfg file, as in the following example, which pings the host on a regular basis: define service{ use local-service ; Name of service template to use. nagios (Last Notification: N/A (notification 0)). Keep your systems secure with Red Hat's specialized responses to security vulnerabilities. This isn't advised at all, as checking this frequently can lead to a multitude of different issues. MIP Model with relaxed integer constraints takes longer to solve than normal model, why? OpenStack Dashboard - Red Hat Access Tab", Collapse section "4.7. Engage with our Red Hat Product Security team, access security updates, and ensure your environments are not exposed to any known security vulnerabilities. Change the host_name, alias, and address fields to appropriate values for the switch. Install the Nagios Service", Expand section "4.7. Monitoring Routers and Switches - Nagios I tried that as well, but ran into a different issue. The object file localhost.cfg allows for parameters to be passed to check_ssh. 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. I'm trying to figure out how can I check a service and/or a host every 20 secs, then re-try every 10 secs, only to send a notification after 3 retries. By default the check_ping command will do the connection time out (if it is unable to reach the destination host) after 10 seconds. The hyperbolic space is a conformally compact Einstein manifold. line, since nagios will substitute $HOSTADDRESS$ for the appropriate hosts ip/name. All other servicemarks and trademarks are the property of their respective owner. The first time you configure Nagios Core to monitor a network switch, you'll need to do a bit of extra work. After installing nagios and nagios-plugins-all (via yum), I've created a number of hosts and service definitions, have tested my configuration with nagios -v /etc/nagios/nagios.cfg, and have Nagios up and running! By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Nagios Alert - Server Down but Server is online - Stack Overflow For any support related questions please visit the Nagios Support Forums at: Article Number: 775 | Rating: Unrated | Last Updated by. I'm not much of a nagios expert, but I do love it. Some links that lead me to believe this feature should already be implemented: Furthermore, I've checked my copy of the xdata/xodtemplate.c file from the 3.4.1 source code, and at a glance it does seem that in the "skip list", that host level checks are meant to take precedence over the hostgroup checks. If the OpenStack cloud is distributed across machines, the NPRE addon can be used to run access plugin information on those remote machines. Interpreting non-statistically significant results: Do we have "no evidence" or "insufficient evidence" to reject the null? SSH can also be used to access remote Nagios plugins. Asking for help, clarification, or responding to other answers. 565), Improving the copy in the close modal and post notices - 2023 edition, New blog post from our CEO Prashanth: Community is the future of AI, Nagios failing restart with new service directove in localhost.cfg, nagios socket timeout error in master server, Nagios variable $HOSTNAME$ in service definition, Unable to read nagios exit status in nagios core. The Nagios monitoring system can be used to provide monitoring and alerts for the OpenStack network and infrastructure. Remote server monitoring with Nagios | TechTarget I could not found the ping on /usr/bin/ping. Remotely monitor servers with the Nagios check_by_ssh plugin Why in the Sierpiski Triangle is this set being used as the example for the OSC and not a more "natural"? You could use "Custom Variable Macros" (http://nagios.sourceforge.net/docs/3_0/macros.html). NSClient++ includes a service module that can check if a service is stopped. NPCA includes a service module that can check if a service is running. OpenStack Dashboard - Red Hat Access Tab. Database as a Service (trove) Log Files, 1.1.7. It's not running 'on' the remote host - the check_ping command is running a ping on the nagios server against the remote host. How about saving the world? Asking for help, clarification, or responding to other answers. Bare Metal Provisioning (ironic) Log Files, 1.1.5. I would suggest you to change the check_command to something like my-check-host-alive and to define my-check-host-alive in commands.cfg to use something like check_tcp. 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. Engage with the community of users including those using the open source solutions. Events Implementing effective Ping monitoring with Nagios offers the following benefits: These Nagios solutions provide Ping monitoring capabilities and benefits: Nagios XI is the most powerful and trusted infrastructure monitoring tool on the market. NRPE is for more complicated checks, where you need to run commands directly on the remote server. Tell Nagios which services are being monitored for each host. Troubleshoot Keystone v3 Dashboard Authentication, 4.7. Monitoring Using Nagios", Collapse section "3. The check_ping command just validates the availability of a system via an ICMP ping packet. Asking for help, clarification, or responding to other answers. Troubleshoot Instance Launching Errors in the Dashboard, 4.6.
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