I currently am experimenting with defining a set of services to all hosts in a hostgroup, this is working fine. So for ping alerts it should go to network@example.com and for swap it should goto storage@example.com. Is there a plugin named check_hosts? There aren't really any inherent limitations on the format or content of the performance data. If you create the same check in the host cfg, then it'll override the hostgroup check. Monitoring switches and routers can either be easy or more involved - depending on what equipment you have and what you want to monitor. What is the 'define host' entry for this host? Monitoring Using the Telemetry Service, 3.2.2. I'm a little bit wary of going to chmod the ping binary (which is what most blog posts have suggested). Share Improve this answer Follow answered Feb 10, 2011 at 16:13 rems Why did DOS-based Windows require HIMEM.SYS to boot? How about saving the world? The check_mrtgtraf plugin (which is included in the Nagios plugins distribution) allows you to do this. Configure Nagios to Monitor OpenStack Services, 3.2.5. If you like to change this, use -t option. I also had same problem and the above answers did not work for me. Therefore I have done below workaround in client side nrpe.cfg file. Which language's style guidelines should be used when writing code that is supposed to be called from another language? 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 . How can I control PNP and NPN transistors together from one pin? However, it doesn't describe in which order to pass parameters. If youve installed Nagios from source, youll find all the default plugins under /usr/local/nagios/libexec directory. Server Fault is a question and answer site for system and network administrators. Eg. In my localhost.cfg I have tried: where xxx22 is the actual port. Short story about swapping bodies as a job; the person who hires the main character misuses his body. However, this can result in too high a CPU load on both the Nagios host and remote machine, and is not recommended. UNIX is a registered trademark of The Open Group. Add a new host definition for the switch that you're going to monitor. Services are those which are used by Nagios to check something about a host. 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. Keep your systems secure with Red Hat's specialized responses to security vulnerabilities. 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. If you want to process the performance data that is available from Nagios and the plugins, you'll need to do the following: Read on for information on how to process performance data by writing to files or executing commands. I can execute the check manually, at the nagios server (Ubuntu Desktop) Viewed 12510 times since Tue, Nov 14, 2017, Viewed 18313 times since Tue, Nov 28, 2017, Viewed 17861 times since Wed, Nov 15, 2017, Viewed 6949 times since Tue, Nov 28, 2017, Viewed 41367 times since Mon, Nov 13, 2017, Viewed 16145 times since Tue, Nov 28, 2017, Viewed 29720 times since Sun, Nov 12, 2017, Viewed 15533 times since Mon, Nov 20, 2017, Viewed 11868 times since Wed, Nov 29, 2017, Viewed 69092 times since Thu, Nov 9, 2017. How to disable host checks of existing hosts in Nagios? Any check that you place in a hostgroup will apply to any host in that hostgroup (which you knew already). Remember, you only need to do this for the *first* switch you monitor. What are the arguments for/against anonymous authorship of the Gospels, Generic Doubly-Linked-Lists C implementation. The "1000000,2000000" options are the warning thresholds (in bytes) for incoming and outgoing traffic rates respectively. Thanks for contributing an answer to Unix & Linux Stack Exchange! the '-t 10' is not the interval, but the timeout argument. Can you help me? Note: The Nagios daemon doesn't directly process plugin performance data, so it doesn't really care what the performance data looks like. Because what you are showing is the command. Plugin performance data is external data specific to the plugin used to perform the host or service check. The critical limit is 20ms or 5% packet loss. It seems that Nagios is not running the correct command. How a top-ranked engineering school reimagined CS curriculum (Ep. Why do men's bikes have high bars where you can hit your testicles while women's bikes have the bar much lower? But when integrating with Nagios server, I could not able to pass this value as an argument. Support Plans define host { use windows-server host_name cielo01 alias cielo01 address cielo01 . The check_init_service plugin does not support checking multiple services. Which language's style guidelines should be used when writing code that is supposed to be called from another language? 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. If your switch or router supports SNMP, you can monitor a lot of information by using the check_snmp plugin. Asking for help, clarification, or responding to other answers. However, I'd recommend waiting until you're more familiar with configuring Nagios Core before doing so. Here's my basic C: drive space check. Data Processing (sahara) Log Files, 1.1.6. Support forum for Nagios Core, Nagios Plugins, NCPA, NRPE, NSCA, NDOUtils and more. To learn more, see our tips on writing great answers. Asking for help, clarification, or responding to other answers. Making statements based on opinion; back them up with references or personal experience. Service or Daemon checks are system processes that run in the background, usually configured to start when the system boots. What positional accuracy (ie, arc seconds) is necessary to view Saturn, Uranus, beyond? Increase visibility into IT operations to detect and resolve technical issues before they impact your business. Modify host_name appropriately. Anyway, if you're interested in testing throughput, there are MUCH better ways of going about it than relying on ICMP, which is the lowest priority traffic type on a network. by cornelp Wed Aug 17, 2016 8:32 am, Post To do this, you'll need to verify your configuration and restart Nagios Core. Our Customers There are those who will say this isn't a good option because of the ability to range the check_ping command, but it should be remembered that host checks aren't even executed until all service checks for a given host have failed. By default the check_ping command will send 5 ICMP ECHO packets. Why does Acts not mention the deaths of Peter and Paul? I can't find it though. Nagios - Configure a hostgroup to include all the hosts of another group? My /etc/nagios/objects/commands.cfg states, which defines the arguments in between the exclamation marks as in the documentation example you gave. Which ability is most related to insanity: Wisdom, Charisma, Constitution, or Intelligence? snmpwalk -v1 -c public 192.168.1.253 -m ALL .1. Tikz: Numbering vertices of regular a-sided Polygon, English version of Russian proverb "The hedgehogs got pricked, cried, but continued to eat the cactus", The hyperbolic space is a conformally compact Einstein manifold. Create Service Definitions for Remote Services, 4.2. OpenStack Dashboard - Red Hat Access Tab", Red Hat JBoss Enterprise Application Platform, Red Hat Advanced Cluster Security for Kubernetes, Red Hat Advanced Cluster Management for Kubernetes, Logging, Monitoring, and Troubleshooting Guide, 1.1.1. Tell Nagios which services are being monitored for each host. How do you Null an inherited service check in nagios? 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). 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. The module 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 CRITICAL an OK state). 1. See Also: Monitoring Publicly Available Services. Learn more about Stack Overflow the company, and our products. by Box293 Sun Aug 28, 2016 8:34 pm, Post Unix & Linux Stack Exchange is a question and answer site for users of Linux, FreeBSD and other Un*x-like operating systems. By using decimals in your check_interval I have a feeling it's throwing the math off. 4.0.8 . 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. If the verification process produces any errors messages, fix your configuration file before continuing. All rights reserved. rev2023.4.21.43403. If you want to have more granular (free) monitoring, check out InfluxDB, Telegraf and Grafana. Set up a hostgroup cfg file with the checks in it. Install the Nagios Service", Collapse section "3.1. Maybe you could look there and get credit for the answer if you have ideas. Note: You should specify % after the second number in the threshold limit pair. This same file can be used to add new OpenStack monitoring services. There are no attachments for this article. I was already tired of editing these humongous text files, and this just made it so easy. Shared Filesystem Service (manila) Log Files, 1.1.14. Asking for help, clarification, or responding to other answers. @JimBlack - Well, that's the error I'm seeing. 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. 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). The best answers are voted up and rise to the top, Not the answer you're looking for? What is Wario dropping at the end of Super Mario Land 2 and why? How to Make a Black glass pass light through it? Nagios is the most popular tool which is used to monitor hosts and services running in your IT infrastructure. (3-30 sec interval checks). I can ping the nagios server and the nagios server is able to ping the server. It's not running 'on' the remote host - the check_ping command is running a ping on the nagios server against the remote host. Thx. 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. 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. Thanks for that. MIP Model with relaxed integer constraints takes longer to solve than normal model, why? 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 "late" was the service check from its scheduled execution time) and the number of seconds a host or service check took to execute. # 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 . Contact Us, Awards The first time you configure Nagios Core to monitor a network switch, you'll need to do a bit of extra work. Everything in that folder should be at 0755. What does 'They're at four. Email: sales@nagios.com What is scrcpy OTG mode and how does it work? 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. Include check_command with nagios/icinga alerts. So for example, I'd like to have a host in the linux-server host group, which inherits several services (SSH, Disk, PING, etc), but for specific services I want to override with their own unique values, define a service specific to that host, with custom values. "But not exactly"? Linux is a registered trademark of Linus Torvalds. I can't remember when (or why) I started using check_host, but that's indeed what I'm currently using. This value can be viewed in the /etc/nagios/cgi.cfg file. Why in the Sierpiski Triangle is this set being used as the example for the OSC and not a more "natural"? Bare Metal Provisioning (ironic) Log Files, 1.1.5. Nagios provides complete monitoring of Ping including reachability and packet loss. Adjust this to say, 10. The plugin returns a CRITICAL state if the service is not started. At a minimum, the following must be done: If the OpenStack cloud includes distributed hosts: /etc/nagios/objects/ObjectsDir/ObjectsFile.cfg. Check web-interface user name and password, and check basic configuration. Additional service files can be used, but they must be specified as a cfg_file parameter in the /etc/nagios/nagios.cfg file. 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. Looking for job perks? The warning limit is 10ms RTA or 2% packet-loss. Remove the leading pound (#) sign from the following line in the main configuration file: What did you just do? If anyone has any advice on insights on how to get this working, I'd very much appreciate it! Learn more about Stack Overflow the company, and our products. Here Host, warning and critical thresholds were passing by Nagios host as below. What positional accuracy (ie, arc seconds) is necessary to view Saturn, Uranus, beyond? The following are some possible error messages that you might get when you try to use check_ping command. 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. 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. Remote Logging Installation and Configuration, 1.3.3. However, one server runs with much less free space than the norm. check_command check_ping!100.0,20%!500.0,60% The sample configuration entries below reference objects that are defined in the sample config files (commands.cfg, templates.cfg, etc.) Checking if a service is running using SNMP is not very straight forward, checking a process is the best solution here, please refer to the Process Checks KB article. 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. by rkennedy Tue Aug 16, 2016 11:34 am, Post That's it for the SNMP monitoring example. The state information delivers "Usage: " which is an indicator that the parameters are wrong. 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.
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