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). Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. This will exclude the zlinux host from the service check. 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. Unix & Linux Stack Exchange is a question and answer site for users of Linux, FreeBSD and other Un*x-like operating systems. Did the Golden Gate Bridge 'flatten' under the weight of 300,000 people in 1987? If it doesn't, install net-snmp and net-snmp-utils and recompile/reinstall the Nagios plugins. If you dont pass any arguments to the check_ping command, it will show all available options as shown below. Could you add more details? Log Files for OpenStack Services", Collapse section "1.1. 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. By default the check_ping command will do the connection time out (if it is unable to reach the destination host) after 10 seconds. 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. Monitoring switches and routers can either be easy or more involved - depending on what equipment you have and what you want to monitor. But, when you use IPv6 address, you should use -6 as shown below. Learn more about Stack Overflow the company, and our products. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Plugin performance data is external data specific to the plugin used to perform the host or service check. In the following example, it will wait for 5 seconds before the connection time-out of the remote host. So the Nagios Core version is 3.5.1. I can ping the nagios server and the nagios server is able to ping the server. Thx. If anyone has any advice on insights on how to get this working, I'd very much appreciate it! Why did US v. Assange skip the court of appeal? I can't find it though. Take a look at the main config documentation: So, I was able to make all the necessary changes. Uploaded the 2 files you requested. # 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 . Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. 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. The format in which host and service performance data is written to those files is determined by the host_perfdata_file_template and service_perfdata_file_template options. The hyperbolic space is a conformally compact Einstein manifold. By default, it will use IPv4. Not the answer you're looking for? Switches and routers can be monitored easily by "pinging" them to determine packet loss, RTA, etc. How do you Null an inherited service check in nagios? Troubleshoot OpenStack Networking Issues, 4.4. Set up a hostgroup cfg file with the checks in it. Why are players required to record the moves in World Championship Classical games? What is the symbol (which looks similar to an equals sign) called? rev2023.4.21.43403. By default, when Nagios is installed, the default httpd user and password is: nagiosadmin / nagiosadmin. The check_init_service plugin does not support checking multiple services. To learn more, see our tips on writing great answers. Thanks for that. by Box293 Sun Aug 28, 2016 8:34 pm, Post Nagios - Define as service for all the members of a group *except* some hosts? Content Discovery initiative April 13 update: Related questions using a Review our technical responses for the 2023 Developer Survey, Nagios host notifications not sending via email or logging, Using Nagios check_log command doesn't work, Nagios: How to check service three times a day, nagios - nsclient - nsca - host_check message. Nagios is composed of a server, plugins that report object/host information from both local and remote machines back to the server, a web interface, and configuration that ties all of it together. Why does Acts not mention the deaths of Peter and Paul? 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. What risks are you taking when "signing in with Google"? The Nagios server will receive traffic from a broad scope of systems. However, this can result in too high a CPU load on both the Nagios host and remote machine, and is not recommended. As of May 25th, 2018, all communications with Nagios Enterprises and its employees are covered under our new. If not, youll get an error. Post Testimonials See Also: Monitoring Publicly Available Services. Can you still use Commanders Strike if the only attack available to forego is an attack against an ally? Are you talking about check interval? 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. by cornelp Tue Aug 16, 2016 1:47 pm, Post Add the following service definition to monitor the uptime of the switch. For example, the following script checks the number of Compute instances, and is stored in a file named nova-list: In the /etc/nagios/objects/commands.cfg file, specify a command section for each new script: In the /etc/nagios/objects/localhost.cfg file, define a service for each new item, using the defined command. Troubleshoot Instance Launching Errors in the Dashboard, 4.6. Hosts and service configurations are the building blocks of Nagios Core. Let's take the check_ping plugin as an example and assume that it has been enhanced to return percent packet loss and average round trip time as performance data metrics. But ultimately, does not work as if I check the "performance data" of the service check results, I can see in there that the threshold included in the data is that of the group check, not the host check. Thanks for contributing an answer to Unix & Linux Stack Exchange! : In your host template set a default value: In the host definition that should use a difference value set e.g. However, if you are using an external addon to process the performance data (i.e. Nagios Plugins does not include a service plugin however the linux-nrpe-agent does provide check_init_service. How to Make a Black glass pass light through it? Arranging it this way allows me to only add custom services, and service checks that aren't the norm in the host definition. Note: You should specify % after the second number in the threshold limit pair. Processing Performance Data Using Commands. I did as you stated. How can I control PNP and NPN transistors together from one pin? Monitoring Using the Telemetry Service, 3.2.2. What is the Russian word for the color "teal"? It's not them. Did the Golden Gate Bridge 'flatten' under the weight of 300,000 people in 1987? Understanding the probability of measurement w.r.t. See this page for details on it's usage: http://nagiosplugins.org/man/check_ping Instead, I believe you'll need to use the check_http command to verify the web server is responding. This type of performance data is available for all checks that are performed. If security segmentation is a requirement, then this would be considered a privileged system, subject to additional firewall rules than what would apply to an OpenStack node. Find A Partner, Phone: 1-888-NAGIOS-1 Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Inquire today and let our Quickstart team help you get started with Nagios XI, Up To: Contents Orthogonally defining services and contacts for a host/hostgroup? Simply change the host check command to use check_host rather than check_ping. How a top-ranked engineering school reimagined CS curriculum (Ep. 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. Increased server, services, and application availability, Fast detection of network outages and protocol failures. For this sort of problem I do this a lot. Remember, you only need to do this for the *first* switch you monitor. I also find it non-intuitive to have to maintain a list of exclusions separate to where the host itself is actually defined. To learn more, see our tips on writing great answers. Find centralized, trusted content and collaborate around the technologies you use most. What is Wario dropping at the end of Super Mario Land 2 and why? "Signpost" puzzle from Tatham's collection, What "benchmarks" means in "what are benchmarks for? I want to set interval between ping times is 10 seconds like below: But not exactly (about 90 seconds). Was Aristarchus the first to propose heliocentrism? There are several steps you'll need to follow in order to monitor a new router or switch. It will have quite a lot of load on the system as well. I also had same problem and the above answers did not work for me. Additional service files can be used, but they must be specified as a cfg_file parameter in the /etc/nagios/nagios.cfg file. 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. I changed the Nagios cfg file interval_length to 10 and the host file to 20 and 10. Certification It only takes a minute to sign up. SSH can also be used to access remote Nagios plugins. Why are players required to record the moves in World Championship Classical games? While there are certainly some differences in the functionality, the overall end result is the same. NSClient++ includes a service module that can check if a service is running. The best answers are voted up and rise to the top, Not the answer you're looking for? If your switch or router supports SNMP, you can monitor a lot of information by using the check_snmp plugin. ms|rta=0.627000ms;3000.000000;5000.000000;0.000000 pl=0%;80;100;0. I am using nagios ver. Open nagios web interface and see the host is being pinged properly. This value can be viewed in the /etc/nagios/cgi.cfg file. Events Which ability is most related to insanity: Wisdom, Charisma, Constitution, or Intelligence? Nagios XI is the easy-to-use, enterprise version of Nagios that features: Download a free 60-day trial of Nagios XI or give the online demo a spin. Here is a link to it's usage: http://nagiosplugins.org/man/check_http Log in to the Nagios dashboard again by using the following URL in your browser, and using the nagiosadmin user and the password that was set in the beginning: Expand section "1.1. Connect and share knowledge within a single location that is structured and easy to search. 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. 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. 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. How to Make a Black glass pass light through it? Email: sales@nagios.com Why in the Sierpiski Triangle is this set being used as the example for the OSC and not a more "natural"? By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Identity Service (keystone) Log Files, 1.1.12. If this is the *first* switch you're monitoring, you can simply modify the sample host definition in switch.cfg. Troubleshoot Networks and Routes Tab Display Issues in the Dashboard, 4.5. My linux box uses a nonstandard port for ssh. If your switch supports SNMP, you can monitor port status, etc. 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". You'll need to create some object definitions in order to monitor a new router/switch. Unfortunately right now, even though the host name and service description match that of the group-level PING check, only one PING service is listed for server-01 and this is the group-level PING check, not the host level one. NPCA allows you to check multiple services, here is an example that checks for some services that are running and some that are stopped. Install and configure NRPE on each remote machine (that has services to be monitored). Contact us on our online support forum at https://support.nagios.com/forum/. Maybe you could look there and get credit for the answer if you have ideas. OpenStack Dashboard - Red Hat Access Tab. Log Files for Supporting Services, 1.3. NRPE and the Nagios plugins must be installed on each remote machine to be monitored. do you know of a way to "switch off" one of the checks inherited from the hostgroup? Thanks for contributing an answer to Stack Overflow! NRPE is for more complicated checks, where you need to run commands directly on the remote server. I had to rename them to txt as it would not allow the original ext. He also rips off an arm to use as a sword. There are several different use cases covered in this KB article: The sections below provide examples of how to perform these checks using different methods. 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. "Signpost" puzzle from Tatham's collection, Using an Ohm Meter to test for bonding of a subpanel. 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. If it doesn't, skip this section. Any check that you place in a hostgroup will apply to any host in that hostgroup (which you knew already). by cornelp Tue Aug 16, 2016 10:43 am, Post

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