Difference between revisions of "Nagios"
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↑ https://en.wikipedia.org/wiki/Nagios#Nagios_agents
↑ https://assets.nagios.com/downloads/nagioscore/docs/nagioscore/3/en/about.html#whatis
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== Features == | == Features == | ||
Some features of Nagios Core include:<ref>https://assets.nagios.com/downloads/nagioscore/docs/nagioscore/3/en/about.html#whatis</ref> | Some features of Nagios Core include:<ref>https://assets.nagios.com/downloads/nagioscore/docs/nagioscore/3/en/about.html#whatis</ref> | ||
| − | * [[Monitoring]] of network services (SMTP, POP3, HTTP, NNTP, PING, etc.) | + | * [[Monitoring]] of network services (SMTP, POP3, HTTP, NNTP, PING, [[MariaDB]], etc.) |
* Monitoring of host resources (processor load, disk usage, etc.) | * Monitoring of host resources (processor load, disk usage, etc.) | ||
* Simple plugin design that allows users to easily develop their own service checks | * Simple plugin design that allows users to easily develop their own service checks | ||
| Line 13: | Line 13: | ||
* Support for implementing redundant monitoring hosts | * Support for implementing redundant monitoring hosts | ||
* Optional web interface for viewing current network status, notification and problem history, log file, etc. | * Optional web interface for viewing current network status, notification and problem history, log file, etc. | ||
| + | |||
== Installation == | == Installation == | ||
| − | * Ubuntu: <code>[[apt install]] | + | * Ubuntu: <code>[[apt install nagios4]]</code> |
* MacOs: <code>[[brew install nagios]]</code> | * MacOs: <code>[[brew install nagios]]</code> | ||
Binaries: | Binaries: | ||
* <code>[[nagios3stats]]</code> | * <code>[[nagios3stats]]</code> | ||
| + | * <code>[[nagios3 --help]]</code> | ||
| + | * <code>[[/usr/lib/nagios/plugins/]]</code> | ||
== Configuration file == | == Configuration file == | ||
| Line 23: | Line 26: | ||
* <code>[[/etc/nagios4/nagios.cfg]]</code> | * <code>[[/etc/nagios4/nagios.cfg]]</code> | ||
| − | == Logs == | + | == [[Nagios logs|Logs]] == |
* <code>[[/var/log/nagios3/nagios.log]]</code> | * <code>[[/var/log/nagios3/nagios.log]]</code> | ||
| + | * [[/var/log/nagios3/archives/]] | ||
== Related terms == | == Related terms == | ||
| Line 44: | Line 48: | ||
* [[Nagios Remote Plugin Executor]] | * [[Nagios Remote Plugin Executor]] | ||
* [[Nagios Cross-Platform Agent]] ([[NCPA]]) | * [[Nagios Cross-Platform Agent]] ([[NCPA]]) | ||
| − | * | + | * {{Rpcbind}} |
| − | |||
| − | |||
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[[Category:Monitoring]] | [[Category:Monitoring]] | ||
Latest revision as of 14:04, 16 March 2024
Nagios (2002) is an application that monitors systems, networks and infrastructure with alerting capabilities. There is different Nagios agents for collection data are available[1].
Contents
Features[edit]
Some features of Nagios Core include:[2]
- Monitoring of network services (SMTP, POP3, HTTP, NNTP, PING, MariaDB, etc.)
- Monitoring of host resources (processor load, disk usage, etc.)
- Simple plugin design that allows users to easily develop their own service checks
- Parallelized service checks
- Ability to define network host hierarchy using "parent" hosts, allowing detection of and distinction between hosts that are down and those that are unreachable
- Alerts or contact notifications when service or host problems occur and get resolved (via email, pager, or user-defined method)
- Ability to define event handlers to be run during service or host events for proactive problem resolution
- Automatic log file rotation
- Support for implementing redundant monitoring hosts
- Optional web interface for viewing current network status, notification and problem history, log file, etc.
Installation[edit]
- Ubuntu:
apt install nagios4 - MacOs:
brew install nagios
Binaries:
Configuration file[edit]
Logs[edit]
Related terms[edit]
Activities[edit]
- Review check_http plugin options
- Review more than 60 plugins installed by Nagios:
/usr/lib/nagios/plugins/check_* - Read StackExchange questions about Nagios: https://serverfault.com/questions/tagged/nagios?tab=Votes
- Read Nagios core changelog: https://github.com/NagiosEnterprises/nagioscore/blob/master/Changelog
- Install Nagios Core using docker:
docker pull jasonrivers/nagios && docker run --name nagios4 -p 0.0.0.0:8080:80 jasonrivers/nagios:latestand connect tohttp://localhost:8080usingnagiosadmin / nagiosorapt install nagios3 - Run a manual test:
/usr/lib/nagios/plugins/check_tcp -H 127.0.0.1 -p 80
TCP OK - 0.000 second response time on 127.0.0.1 port 80|time=0.000274s;;;0.000000;10.000000
See also[edit]
- Nagios, NRPE, Nagios Cross-Platform Agent (NCPA),
nagios.cfg,nrpe,nagios4, nagios3, nagios3stats,check_http, Monitoring-plugins,/usr/lib/nagios/plugins/, Nagios logs,nagios.cfg - Monitoring: Prometheus, Cacti, monit, munin, RRDtool, Zabbix, Netdata, Nagios, Check MK, Icinga, Pingdom, OpsGenie and Datadog, Opsgenie, PRTG, Checkmk
- Nagios Remote Plugin Executor
- Nagios Cross-Platform Agent (NCPA)
rpcbind, rpcbind -f -w, systemctl disable rpcbind
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