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. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Media Coverage You can have Nagios write all host and service performance data directly to text files using the host_perfdata_file and service_perfdata_file options. So the Nagios Core version is 3.5.1. How To Monitor Network Switch and Ports Using Nagios - The Geek Stuff In my example, I'm monitoring one of the ports on a Linksys switch. Sample output from the plugin might look like this: When Nagios sees this plugin output format it will split the output into two parts: In the example above, the $HOSTOUTPUT$ or $SERVICEOUTPUT$ macro would contain "PING ok - Packet loss = 0%, RTA = 0.80 ms" (without quotes) and the $HOSTPERFDATA$ or $SERVICEPERFDATA$ macro would contain "percent_packet_loss=0, rta=0.80" (without quotes). UNIX is a registered trademark of The Open Group. You could use "Custom Variable Macros" (http://nagios.sourceforge.net/docs/3_0/macros.html). Hosts and service configurations are the building blocks of Nagios Core. The check_snmp plugin will only get compiled and installed if you have the net-snmp and net-snmp-utils packages installed on your system. Why are players required to record the moves in World Championship Classical games? NRPE and the Nagios plugins must be installed on each remote machine to be monitored. Testimonials The best answers are voted up and rise to the top, Not the answer you're looking for? If you dont pass any arguments to the check_ping command, it will show all available options as shown below. Plugins can return optional performance data in their output by sending the normal, human-readable text string that they usually would, followed by a pipe character (|), and then a string containing one or more performance data metrics. The "5000000,5000000" are critical thresholds (in bytes) for incoming and outgoing traffic rates respectively. News To me, this is not an ideal solution, as we could end up having to make many exceptions and this seems like it would be tough to maintain. Knowledge Base 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. If you're processing performance data for a large number of hosts and services, you'll probably want Nagios to write performance data to files instead. ', referring to the nuclear power plant in Ignalina, mean? Making statements based on opinion; back them up with references or personal experience. Below are the command definitions for check-host-alive as well as check_ping. This means if the check_ping does not get a result in 10 seconds, the command will timeout. It only takes a minute to sign up. Did the Golden Gate Bridge 'flatten' under the weight of 300,000 people in 1987? There are several different use cases covered in this KB article: Service - Started Service - Stopped Multiple Services The sections below provide examples of how to perform these checks using different methods. On the central Nagios server, in the commands.cfg configuration file, define the new checks. Check the documentation that comes with the addon for more information. 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. Nagios - Define as service for all the members of a group *except* some hosts? The critical limit is 20ms or 5% packet loss. Nagios - how does native service such as check_ping monitor remote host There are no attachments for this article. Understanding the probability of measurement w.r.t. In my localhost.cfg I have tried: where xxx22 is the actual port. Monitoring Routers and Switches - Nagios with the check_snmp plugin and bandwidth (if you're using MRTG) with the check_mrtgtraf plugin. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. check_ping command is a Nagios plugin that is used to check the ping output of a remote server. by cornelp Fri Aug 26, 2016 2:03 pm, Post 2. 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. 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. Why did US v. Assange skip the court of appeal? If the verification process produces any errors messages, fix your configuration file before continuing. See Also: Plugins, Plugin API. once I passed the correct IP protocol , It worked fine. (3-30 sec interval checks). define service{ host_name linuxbox service_description PING check_command check_ping!200.0,80%!400.0,40% . } Include check_command with nagios/icinga alerts. The plugin returns a CRITICAL state if the service is not started. There are several steps you'll need to follow in order to monitor a new router or switch. Server Fault is a question and answer site for system and network administrators. how "late" was the service check from its scheduled execution time) and the number of seconds a host or service check took to execute. Asking for help, clarification, or responding to other answers. Our Customers Learn more about Stack Overflow the company, and our products. define command { command_name check-host-alive command_line $USER1$/check_ping -t 10 -H $HOSTADDRESS$ -w 3000.0,80% -c 5000.0,100% -p 5 } The thing you post is a Nagios command. Short story about swapping bodies as a job; the person who hires the main character misuses his body. What were the poems other than those by Donne in the Melford Hall manuscript? At a minimum, the following must be done: If the OpenStack cloud includes distributed hosts: /etc/nagios/objects/ObjectsDir/ObjectsFile.cfg. Note: Replace "linksys-srw224p" in the example definitions below with the name you specified in the host_name directive of the host definition you just added. If you create the same check in the host cfg, then it'll override the hostgroup check. It does seem to be registering on some level as in my Nagios logs I can see: Jul 16 19:12:27 localhost nagios: Warning: Duplicate definition found for service 'PING' on host 'server-01'. There are two basic categories of performance data that can be obtained from Nagios: Check performance data is internal data that relates to the actual execution of a host or service check. Why does Acts not mention the deaths of Peter and Paul? Although admittedly, my analysis is primitive. If this is the *first* switch you're monitoring, you can simply modify the sample host definition in switch.cfg. Here Host, warning and critical thresholds were passing by Nagios host as below, define service { use generic-service hostgroup_name all-servers service_description Host Ping Status check_command check_nrpe_args!check_ping_args!localhost!3000.0,80%!5000.0,100% } Share Follow answered Apr 28, 2020 at 1:45 Hasitha 698 8 16 Add a comment Was Aristarchus the first to propose heliocentrism? Looking for job perks? The scheduling engine employs some tricks to keep checks from bunching up and causing CPU spikes, otherwise if you had all of your checks set to run every minute, you would have 59 seconds of nothing and then everything run at once. Therefore I have done below workaround in client side nrpe.cfg file. The first time you configure Nagios Core to monitor a network switch, you'll need to do a bit of extra work. Open nagios web interface and see the host is being pinged properly. Benefits Implementing effective Ping monitoring with Nagios offers the following benefits: Increased server, services, and application availability Fast detection of network outages and protocol failures Solutions 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. 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 can't remember when (or why) I started using check_host, but that's indeed what I'm currently using. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Percentage of packet loss, which is called pl. service_perfdata_file_processing_interval, Everything before the pipe character is considered to be the "normal" plugin output and will be stored in either the $HOSTOUTPUT$ or $SERVICEOUTPUT$ macro, Everything after the pipe character is considered to be the plugin-specific performance data and will be stored in the $HOSTPERFDATA$ or $SERVICEPERFDATA$ macro. Add the following service definition to monitor the uptime of the switch. The Nagios monitoring system can be used to provide monitoring and alerts for the OpenStack network and infrastructure. rev2023.4.21.43403. While there are certainly some differences in the functionality, the overall end result is the same. Monitoring Routers and Switches Nagios Core Documentation Adjust this to say, 10. Asking for help, clarification, or responding to other answers. - basically any type of metric that the plugin is measuring when it executes. To configure HTTPD for nagios, follow these steps: To change the default password for the user nagiosadmin, execute: To create a new user, use the following command with the new users name: Update the nagiosadmin email address in /etc/nagios/objects/contacts.cfg: Verify that the basic configuration is working: If errors occur, check the parameters set in /etc/nagios/nagios.cfg. By default the check_ping command will send 5 ICMP ECHO packets. For this sort of problem I do this a lot. Support Plans Unexpected uint64 behaviour 0xFFFF'FFFF'FFFF'FFFF - 1 = 0? Monitoring Using the Telemetry Service", Collapse section "2. This value can be viewed in the /etc/nagios/cgi.cfg file.
Gemini Junior User Manual,
University Of Tennessee Professors,
Lancaster Ca Ymca Youth Basketball,
Does Irish Spring Soap Lighten Skin,
David Newhouse Obituary,
Articles N