Change the host_name, alias, and address fields to appropriate values for the switch. Performance Data - Nagios 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 . 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. If this is the *first* switch you're monitoring, you can simply modify the sample service definition in switch.cfg. Create new host and service definitions for monitoring the device, CRITICAL if the round trip average (RTA) is greater than 600 milliseconds or the packet loss is 60% or more, WARNING if the RTA is greater than 200 ms or the packet loss is 20% or more, OK if the RTA is less than 200 ms and the packet loss is less than 20%. Nagios is the most popular tool which is used to monitor hosts and services running in your IT infrastructure. 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. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Nagios servers may receive a considerable amount of network traffic, resulting in resource contention. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Then, in your check_interval change it to 3, and retry interval of 2. Any check that you place in a hostgroup will apply to any host in that hostgroup (which you knew already). since there is no predefined argument to specify the port, like --port=$ARG1$ in the definition, but only a generic place holder. Bare Metal Provisioning (ironic) Log Files, 1.1.5. The state information delivers "Usage: " which is an indicator that the parameters are wrong. Here is the output when the RemoteAccess service was started: Checking if a service is stopped using SNMP is not very straight forward, checking a process is the best solution here, please refer to the Process Checks KB article. Is there another (safer) option, such as adding the Nagios user to ping's group or something? If anyone has any advice on insights on how to get this working, I'd very much appreciate it! I checked log: /usr/local/nagios/var/nagios.log the interval between ping times is 90 seconds. Switches and routers can be monitored easily by "pinging" them to determine packet loss, RTA, etc. I tried that as well, but ran into a different issue. Keep your systems secure with Red Hat's specialized responses to security vulnerabilities. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Everything in that folder should be at 0755. As of May 25th, 2018, all communications with Nagios Enterprises and its employees are covered under our new. Learn more about Stack Overflow the company, and our products. What should I follow, if two altimeters show different altitudes? Increase visibility into IT operations to detect and resolve technical issues before they impact your business. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Documentation, Purchase Online After some checking the issue further noticed that the reason is IP protocol. Monitoring Routers and Switches - Nagios I'm a little bit wary of going to chmod the ping binary (which is what most blog posts have suggested). It only takes a minute to sign up. What differentiates living as mere roommates from living in a marriage-like relationship? 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. 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. 2. 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! ms|rta=0.627000ms;3000.000000;5000.000000;0.000000 pl=0%;80;100;0. Use -H option to specify the hostname or the ip-address of the server for which you like to check the ping command output. Why in the Sierpiski Triangle is this set being used as the example for the OSC and not a more "natural"? Nagios Plugins does not include a service plugin however the linux-nrpe-agent does provide check_init_service. What is the symbol (which looks similar to an equals sign) called? Monitoring Using Nagios", Expand section "3.1. Knowledge Base 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. Testimonials It's not them. The MRTG log file is stored in /var/lib/mrtg/192.168.1.253_1.log. Share Improve this answer Follow answered Feb 10, 2011 at 16:13 rems How do you Null an inherited service check in nagios? If your switch supports SNMP, you can monitor port status, etc. 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). Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Was Aristarchus the first to propose heliocentrism? 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, Override implicitly inherited service in Icinga. The check_init_service plugin does not support checking multiple services. What are the arguments for/against anonymous authorship of the Gospels, Embedded hyperlinks in a thesis or research paper. Within the Nagios Web GUI / Dashboard, if I drill down into a Host page with the "Host State Information", I see this being reported for "Status Information" (IP address removed): Status Information: /usr/bin/ping -n -U -w 30 -c 5 {my-host-ip-address}, CRITICAL - Could not interpret output from ping command. Eg. How about saving the world? It's not them. Log Files for OpenStack Services", Collapse section "1.1. NPCA includes a service module that can check if a service is running. Looking for job perks? An example file format template for service performance data might look like this: By default, the text files will be opened in "append" mode. Any suggestions on how I can fix my check-host-alive command definition to work properly and evaluate the output of check_ping properly? Email: sales@nagios.com They're great. It is not possible to set intervals of less then one minute with Nagios. Short story about swapping bodies as a job; the person who hires the main character misuses his body. Could you add more details? the '-t 10' is not the interval, but the timeout argument. 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. how "late" was the service check from its scheduled execution time) and the number of seconds a host or service check took to execute. Nagios - Configure a hostgroup to include all the hosts of another group? It seems that Nagios is not running the correct command. Host is just like a computer; it can be a physical device or virtual. Service Checks - Nagios Support NPCA includes a service module that can check if a service is stopped. Now you can add some service definitions (to the same configuration file) to monitor different aspects of the switch. This type of performance data is available for all checks that are performed. I want to set interval between ping times is 10 seconds like below: But not exactly (about 90 seconds). Install and configure NRPE on each remote machine (that has services to be monitored). If the verification process produces any errors messages, fix your configuration file before continuing. 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. Overriding Nagios hostgroup service with host service, https://www.mail-archive.com/nagios-users@lists.sourceforge.net/msg29273.html, http://forum.centreon.com/showthread.php/10643-Over-riding-checks-in-hostgroup, http://ehc.ac/p/nagios/mailman/message/22496927/, http://markmail.org/message/ms6rzljthml7ejlt, http://nagios.sourceforge.net/docs/3_0/macros.html. Here's my basic C: drive space check. Can you still use Commanders Strike if the only attack available to forego is an attack against an ally? by cornelp Mon Aug 29, 2016 8:42 am, Powered by phpBB Forum Software phpBB Limited. If you create the same check in the host cfg, then it'll override the hostgroup check. Configuring remote service checks using nagios - Notes_Wiki Is there a plugin named check_hosts? Nagios should be hosted on a securely locked down server, especially if security events are being monitored. PerfParse), the addon may be expecting that the plugin returns performance data in a specific format. 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. rotate them) using the host_perfdata_file_processing_command and service_perfdata_file_processing_command options. Extracting arguments from a list of function calls. line, since nagios will substitute $HOSTADDRESS$ for the appropriate hosts ip/name. Database as a Service (trove) Log Files, 1.1.7. How to disable host checks of existing hosts in Nagios? I've taken a screenshot, and am updating the question with the screenshot. 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. Thanks for contributing an answer to Stack Overflow! Monitoring Using the Telemetry Service", Collapse section "2. How Macros Work Nagios Core Documentation All other servicemarks and trademarks are the property of their respective owner. Troubleshoot Keystone v3 Dashboard Authentication, 4.7. On the central Nagios server, in the commands.cfg configuration file, define the new checks. The hyperbolic space is a conformally compact Einstein manifold. Nagios provides complete monitoring of Ping including reachability and packet loss. Did the drapes in old theatres actually say "ASBESTOS" on them? If this is the *first* switch you're monitoring, you can simply modify the sample host definition in switch.cfg. You'll need to create some object definitions in order to monitor a new router/switch. Connect and share knowledge within a single location that is structured and easy to search. I also use it for IDRAC IPs on Dell Hardware so I can maintain the association and don't have to have a separate host. Remove the leading pound (#) sign from the following line in the main configuration file: What did you just do? Nagios' check_ssh (of course) keeps marking the process as critical since it can't connect on that port. To learn more, see our tips on writing great answers. This means if the check_ping does not get a result in 10 seconds, the command will timeout. The following are some possible error messages that you might get when you try to use check_ping command. However, one server runs with much less free space than the norm. The "1000000,2000000" options are the warning thresholds (in bytes) for incoming and outgoing traffic rates respectively. So for ping alerts it should go to network@example.com and for swap it should goto storage@example.com. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. 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 clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Two MacBook Pro with same model number (A1286) but different year. OpenStack Dashboard - Red Hat Access Tab", Collapse section "4.7. If you dont pass any arguments to the check_ping command, it will show all available options as shown below. You could use "Custom Variable Macros" (http://nagios.sourceforge.net/docs/3_0/macros.html). If all goes fine then you can add more services running on the host that can be accessed remotely Checking SSH service We can use something like this to configure check for SSH service. name host-services ; The name of this host template check_period extendhours ; By default, switches are monitored round the clock check_interval 0.30 ; Switches are checked every 5 minutes retry_interval 0.20 ; Schedule host check retries at 1 minute intervals max_check_attempts 3 ; Check each switch 10 times (max) There aren't really any inherent limitations on the format or content of the performance data. by tmcdonald Wed Aug 17, 2016 2:31 pm, Post To do this, you'll need to verify your configuration and restart Nagios Core. Why did US v. Assange skip the court of appeal? Linux is a registered trademark of Linus Torvalds. 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. This document describes how you can monitor the status of network switches and routers. How can I control PNP and NPN transistors together from one pin? For example: To set up monitoring on each remote machine, execute the following as the root user: In the /etc/nagios/nrpe.cfg file, add the central Nagios server IP address in the allowed_hosts line: In the /etc/nagios/nrpe.cfg file, add any commands to be used to monitor the OpenStack services. 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. . Maybe you could look there and get credit for the answer if you have ideas. 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 . What is the 'define host' entry for this host? Which language's style guidelines should be used when writing code that is supposed to be called from another language? By default, it will use IPv4. 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.
nagios check_ping define service