Everything in that folder should be at 0755. What positional accuracy (ie, arc seconds) is necessary to view Saturn, Uranus, beyond? by cornelp Mon Aug 29, 2016 8:08 am, Post by cornelp Fri Aug 26, 2016 2:03 pm, Post 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 (Last Notification: N/A (notification 0)). If you create the same check in the host cfg, then it'll override the hostgroup check. Remote Logging Installation and Configuration", Expand section "2. The best answers are voted up and rise to the top, Not the answer you're looking for? 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. I also had same problem and the above answers did not work for me. If it doesn't, install net-snmp and net-snmp-utils and recompile/reinstall the Nagios plugins. Support Plans This means if the check_ping does not get a result in 10 seconds, the command will timeout. Some methods support checking multiple services at once. Processing Performance Data Using Commands. 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. If youve installed Nagios from source, youll find all the default plugins under /usr/local/nagios/libexec directory. Thanks for contributing an answer to Server Fault! Thanks for contributing an answer to Stack Overflow! Why does Acts not mention the deaths of Peter and Paul? It was installed on Debian by using 'apt-get install nagios-plugins', and on Redhat/Fedora via RPM, such as nagios-plugins-2.2.1-4git.fc26.aarch64.rpm. Did the drapes in old theatres actually say "ASBESTOS" on them? 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. Have you made sure that the nagios user can run the ping command? How a top-ranked engineering school reimagined CS curriculum (Ep. by cornelp Wed Aug 17, 2016 8:32 am, Post Apologies, mistyped. Set up a hostgroup cfg file with the checks in it. ', referring to the nuclear power plant in Ignalina, mean? Increase visibility into IT operations to detect and resolve technical issues before they impact your business. The best answers are voted up and rise to the top, Not the answer you're looking for? What should I follow, if two altimeters show different altitudes? The following installation procedure installs: nagios Nagios program that monitors hosts and services on the network, and which can send email or page alerts when a problem arises and when a problem is resolved. Why does Acts not mention the deaths of Peter and Paul? The example below defines a new check_ssh_load command: # 'check_ssh_load' command definition define . I tried that as well, but ran into a different issue. Is there another (safer) option, such as adding the Nagios user to ping's group or something? I'm sure the OP is well on to other things by now, but hopefully someone else who has this issue will benefit. They are: To make your life a bit easier, a few configuration tasks have already been done for you: The above-mentioned config files can be found in the /usr/local/nagios/etc/objects/ directory. 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 I've taken a screenshot, and am updating the question with the screenshot. The check_mrtgtraf plugin (which is included in the Nagios plugins distribution) allows you to do this. 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. 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. If you like to change this, use -p option. is there such a thing as "right to be heard"? Below is the full define host {} template I'm using: For anyone else who runs into this issue, there's another option than changing permissions on ping. 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. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Engage with the community of users including those using the open source solutions. What are the arguments for/against anonymous authorship of the Gospels, Generic Doubly-Linked-Lists C implementation. I had to rename them to txt as it would not allow the original ext. 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. the '-t 10' is not the interval, but the timeout argument. This will exclude the zlinux host from the service check. Nagios checks are not run on an exact schedule. 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. Post However, it doesn't describe in which order to pass parameters. Thanks for contributing an answer to Unix & Linux Stack Exchange! Eg. At this point I think enabling debug mode and looking at the debug log will be required to understand what is going on. By default, when Nagios is installed, the default httpd user and password is: nagiosadmin / nagiosadmin. 4.0.8 . This means if the check_ping does not get a result in 10 seconds, the command will timeout. 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. What risks are you taking when "signing in with Google"? 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. Check WMI Plus allows you to check multiple services, here is an example that checks for two services that are running. I can't remember when (or why) I started using check_host, but that's indeed what I'm currently using. Could you add more details? How about saving the world? If the OpenStack cloud is distributed across machines, the NPRE addon can be used to run access plugin information on those remote machines. Any complicated monitoring can be placed into a script, and then referred to in the command definition. What is Wario dropping at the end of Super Mario Land 2 and why? Nagios should be hosted on a securely locked down server, especially if security events are being monitored. You can always comment these services out if they are no longer needed by prefacing each line with a '#' character. 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. Troubleshoot Identity Client (keystone) Connectivity Problems, 4.3. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. I want to set interval between ping times is 10 seconds like below: But not exactly (about 90 seconds). The check_init_service plugin does not support checking multiple services. Any suggestions on how I can fix my check-host-alive command definition to work properly and evaluate the output of check_ping properly? So the Nagios Core version is 3.5.1. Nagios provides complete monitoring of Ping - including reachability and packet loss. What is Wario dropping at the end of Super Mario Land 2 and why? I changed the Nagios cfg file interval_length to 10 and the host file to 20 and 10. The following installation procedure installs: Install the required packages as the root user, using the yum command: If any of the packages are not immediately available (for example, gd-devel or gcc), you might have to enable the optional Red Hat channel using subscription-manager: Consider deploying Nagios to a server that is external to the OpenStack environment, allowing it to receive diagnostic information in the event of system issues. 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: Testimonials Checking a service using SNMP is not very straight forward, checking a process is the best solution here, please refer to the Process Checks KB article. News 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. 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) However, in the end, that's what I did - and it works. Events Database as a Service (trove) Log Files, 1.1.7. How about saving the world? Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. I can't find it though. What are the arguments for/against anonymous authorship of the Gospels, Embedded hyperlinks in a thesis or research paper. Here you go. I put in ` check_ssh!--host=localhost!--port=xxx22` and nagios will start with, Nagios: How to determine parameter order check_ssh. For example, advice was given in one of the above links (second one) to do the following: In the service definition add a line under "hostgroup_name": See Also: Monitoring Publicly Available Services. Include check_command with nagios/icinga alerts. This type of performance data is available for all checks that are performed. Interpreting non-statistically significant results: Do we have "no evidence" or "insufficient evidence" to reject the null? Short story about swapping bodies as a job; the person who hires the main character misuses his body. define service{ host_name linuxbox service_description PING check_command check_ping!200.0,80%!400.0,40% . } 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. 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. This document describes how you can monitor the status of network switches and routers. Share Improve this answer Follow answered Feb 10, 2011 at 16:13 rems The "5000000,5000000" are critical thresholds (in bytes) for incoming and outgoing traffic rates respectively. As of May 25th, 2018, all communications with Nagios Enterprises and its employees are covered under our new. The object file localhost.cfg allows for parameters to be passed to check_ssh. Be aware that the service module is cAsE SeNsative, you can overcome this with the match= argument. by cornelp Tue Aug 16, 2016 10:43 am, Post This tutorial explains how you can use check_ping command with some basic examples. 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. Nagios is the most popular tool which is used to monitor hosts and services running in your IT infrastructure. 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. I can execute the check manually, at the nagios server (Ubuntu Desktop) density matrix. A boy can regenerate, so demons eat him for years. 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. If additional machines are being used in the cloud, in addition to the host on which Nagios is installed, they must be made known to Nagios by configuring them in an objects file: In the file, specify a host section for each machine on which an OpenStack service is running and should be monitored: In the /etc/nagios/nagios.cfg file, under the OBJECT CONFIGURATION FILES section, specify the following line: To monitor remote services, you must define those services in a new file; in this procedure, /etc/nagios/objects/services.cfg: In the /etc/nagios/objects/commands.cfg file, specify the following to handle the use of the check_nrpe plugin with remote scripts or plugins: In the file, specify the following service sections for each remote OpenStack host to be monitored: The above sections ensure that a server heartbeat, load check, and the OpenStack Identity service status are reported back to the Nagios server. MIP Model with relaxed integer constraints takes longer to solve than normal model, why? Server Fault is a question and answer site for system and network administrators. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. rotate them) using the host_perfdata_file_processing_command and service_perfdata_file_processing_command options. At a minimum, the following must be done: If the OpenStack cloud includes distributed hosts: /etc/nagios/objects/ObjectsDir/ObjectsFile.cfg. More expensive switches and routers have addresses assigned to them and can be monitored by pinging them or using SNMP to query status information. The plugin returns a CRITICAL state if the service is not started. @MrCleanX - I've read a few blog posts suggesting I check that. 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. # 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 . I am currently running 3.4.1, so I would think this should be working. However, if you are using an external addon to process the performance data (i.e. This same file can be used to add new OpenStack monitoring services. Looking for job perks? OpenStack Dashboard - Red Hat Access Tab. You should also pass both warning and critical threshold limit. You told Nagios to look to the /usr/local/nagios/etc/objects/switch.cfg to find additional object definitions. Can you help me? Define a host in linux-server with a custom PING service definition: 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. The hyperbolic space is a conformally compact Einstein manifold. It only takes a minute to sign up. 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. Configure Nagios so that performance data is either written to files and/or processed by executing commands. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. 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. It seems to me that there has to be a safer way to do it. Plugin-specific performance data (if available) can be obtained by using the $HOSTPERFDATA$ and $SERVICEPERFDATA$ macros. To learn more, see our tips on writing great answers. Change the host_name, alias, and address fields to appropriate values for the switch. Which language's style guidelines should be used when writing code that is supposed to be called from another language? You could use "Custom Variable Macros" (http://nagios.sourceforge.net/docs/3_0/macros.html). 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 Nagios monitoring system can be used to provide monitoring and alerts for the OpenStack network and infrastructure. Tell Nagios which services are being monitored for each host. 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. In the check_command directive of the service definition above, the "-C public" tells the plugin that the SNMP community name to be used is "public" and the "-o sysUpTime.0" indicates which OID should be checked. by rkennedy Tue Aug 16, 2016 11:34 am, Post line, since nagios will substitute $HOSTADDRESS$ for the appropriate hosts ip/name. Making statements based on opinion; back them up with references or personal experience. Thx. The "1000000,2000000" options are the warning thresholds (in bytes) for incoming and outgoing traffic rates respectively. Asking for help, clarification, or responding to other answers. NSClient++ includes a service module that can check if a service is running. There should be no reference to /usr/bin/ping in that output, even when failing. What is the symbol (which looks similar to an equals sign) called? Troubleshoot OpenStack Networking Issues, 4.4. Why did US v. Assange skip the court of appeal? I can ping the nagios server and the nagios server is able to ping the server. Did the drapes in old theatres actually say "ASBESTOS" on them? There are a million things that can be monitored via SNMP, so its up to you to decide what you need and want to monitor. Connect and share knowledge within a single location that is structured and easy to search. What is the 'define host' entry for this host? Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Contact us on our online support forum at https://support.nagios.com/forum/. But it doesn't identify that as the port. Adjust this to say, 10. Our tech support team is happy to help you with any questions you might have. 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. What were the poems other than those by Donne in the Melford Hall manuscript? By using decimals in your check_interval I have a feeling it's throwing the math off. 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 . 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. since there is no predefined argument to specify the port, like --port=$ARG1$ in the definition, but only a generic place holder. Two MacBook Pro with same model number (A1286) but different year, Adding EV Charger (100A) in secondary panel (100A) fed off main (200A). Configure rsyslog on the Centralized Logging Server, 1.3.4. At a minimum, Nagios plugins must return a single line of human-readable text that indicates the status of some type of measurable data. Although admittedly, my analysis is primitive. Keep your systems secure with Red Hat's specialized responses to security vulnerabilities. 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. UNIX is a registered trademark of The Open Group. For the time being, just follow the directions outlined below and you'll be monitoring your network routers/switches in no time. My /etc/nagios/objects/commands.cfg states, which defines the arguments in between the exclamation marks as in the documentation example you gave. 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. If you like to change this, use -t option. Maybe you could look there and get credit for the answer if you have ideas. In my localhost.cfg I have tried: where xxx22 is the actual port. An example command definition that redirects service check performance data to a text file for later processing by another application is shown below: rev2023.4.21.43403. If you dont pass any arguments to the check_ping command, it will show all available options as shown below. 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. Engage with our Red Hat Product Security team, access security updates, and ensure your environments are not exposed to any known security vulnerabilities. Add a new host definition for the switch that you're going to monitor. 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. Any check that you place in a hostgroup will apply to any host in that hostgroup (which you knew already). 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). Service or Daemon checks are system processes that run in the background, usually configured to start when the system boots. So in my troubleshooting, I drilled down into the Nagios Plugins directory (/usr/lib64/nagios/plugins), and ran a test with the check_ping plugin consistent with the way check-host-alive runs the command (see below for my check-host-alive command definition): This check_ping command returns the following output: PING OK - Packet loss = 0%, RTA = 0.63 Tip: You can usually find the OIDs that can be monitored on a switch by running the following command (replace 192.168.1.253 with the IP address of the switch): Shared Filesystem Service (manila) Log Files, 1.1.14. Not the answer you're looking for? Log Files for Supporting Services, 1.3. Nagios' check_ssh (of course) keeps marking the process as critical since it can't connect on that port. For example: Each defined command can then be specified in the services.cfg file on the Nagios monitoring server. Is there a plugin named check_hosts? Then, in your check_interval change it to 3, and retry interval of 2. Why do men's bikes have high bars where you can hit your testicles while women's bikes have the bar much lower? Browse other questions tagged. If your switch supports SNMP, you can monitor port status, etc. How to Make a Black glass pass light through it? Make sure the plugin exists in /usr/local/nagios/libexec before you continue. Read on for more information on how plugins can return performance data to Nagios for inclusion in the $HOSTPERFDATA$ and $SERVICEPERFDATA$ macros. For this sort of problem I do this a lot. If not, youll get an error. Thanks for that. 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. Find centralized, trusted content and collaborate around the technologies you use most.