Nagios vs Adagios

Nagios

Nagios Core (by NagiosEnterprises)

Monitoring

Source Code

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Adagios

Adagios - Web Based Nagios Configuration (by opinkerfi)

Monitoring Adagios Nagios Naemon Django Okconfig Python Pynag

Source Code

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Nagios		Adagios
	Project
7	Mentions	1
1,450	Stars	329
1.3%	Growth	0.3%
7.4	Activity	2.8
4 days ago	Latest Commit	about 2 months ago
C	Language	HTML
GNU General Public License v3.0 only	License	GNU Affero General Public License v3.0

The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.

Nagios

Posts with mentions or reviews of Nagios. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-06-27.

OpenRC is a dependency-based init system for Unix-like systems
3 projects | news.ycombinator.com | 27 Jun 2023

I've used this opportunity to look at some recent init files.
Here's one of the first I stumbled upon.
https://github.com/NagiosEnterprises/nagioscore/blob/master/...
It's 288 lines long; the LSB dependency nonsense is 8 lines of that.
Then I looked up one for Postgres;
https://wiki.postgresql.org/wiki/Lsb_conforming_init_script
This one is a whooping 356 lines long, LSB is again about 10 lines long, depending whether you count the header or not.
I don't think the "LSB dependency" argument holds water.
Can't get Nagios to work on Ubuntu 22.04
6 projects | /r/nagios | 30 May 2023

wget -O nagioscore.tar.gz https://github.com/NagiosEnterprises/nagioscore/archive/nagios-4.4.12.tar.gz
Upgrading Core to 4.4.7
1 project | /r/nagios | 10 May 2022

Might be this bug? https://github.com/NagiosEnterprises/nagioscore/issues/861
Is Nagios Core still alive? Last commit on 18 Jul 2020 😳
3 projects | /r/nagios | 27 Jan 2022
Nagios Inconsistencies
2 projects | /r/nagios | 19 Jan 2021

As far as i know there is no option to log all executed service checks except the debug log. Probably you are looking for log_service_retries=1 ?

Adagios

Posts with mentions or reviews of Adagios. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2021-04-05.

Nagios core Config structure
3 projects | /r/linuxadmin | 5 Apr 2021

What are some alternatives?

When comparing Nagios and Adagios you can also consider the following projects:

LibreNMS - Community-based GPL-licensed network monitoring system

Naemon - Networks, Applications and Event Monitor

Thruk - Thruk is a multibackend monitoring webinterface for Naemon, Nagios, Icinga and Shinken using the Livestatus API.

Netdata - The open-source observability platform everyone needs

AS-Stats v1.6 (2014-09-12) - A simple tool to generate per-AS traffic graphs from NetFlow/sFlow records

Shinken - Flexible and scalable monitoring framework

Monit

Centreon - Centreon is a network, system and application monitoring tool. Centreon is the only AIOps Platform Providing Holistic Visibility to Complex IT Workflows from Cloud to Edge.

uptime-kuma - A fancy self-hosted monitoring tool

Zabbix - Real-time monitoring of IT components and services, such as networks, servers, VMs, applications and the cloud.