
What is OpenNMS network monitoring tool?
OpenNMS is an open-source and enterprise grade network monitoring and management solution. Read about the capabilities of OpenNMS on OpenNMS platform page. In order to install OpenNMS Network Monitoring tool on Ubuntu 20.04;
What is the OpenNMS Project?
The OpenNMS Project was started in July, 1999 by Steve Giles, Brian Weaver and Luke Rindfuss and their company PlatformWorks. It was registered as project 4141 on SourceForge in March 2000. On September 28, 2000, PlatformWorks was acquired by Atipa, a Kansas City-based competitor to VA Linux Systems.
How to install OpenNMS on Linux?
So you will need to add the OpenNMS repository to your system. First, add the GPG key with the following command: Once the GPG key is added, run the following command to add the OpenNMS repo. Next, you can install the OpenNMS by running the following command: This will install OpenNMS, PostgreSQL and other packages in your server.
What are the benefits of OpenNMS?
The main benefits of OpenNMS are its service monitors, its event-driven architecture, and its dashboard components. Service monitors make up the OpenNMS framework and these come up with and collect monitoring information and data.

What can OpenNMS monitor?
So what can the OpenNMS system do for you? It can help you monitor the following services: ICMP. SNMP (version 1 for data collection)...A Java 1.3+ development environment.PostgreSQL database servers.Tomcat servlet server.JBossmq Java server.RRDTool graphing engine.
Is OpenNMS good?
The OpenNMS web-based dashboard is very comprehensive and offers a ton of detail, covering everything you are monitoring. The ability to get a reassuring overview of the entire network is great, and to be able to whittle down the data to specifics, is a game changer.
Is OpenNMS open source?
Published under the AGPLv3 license, OpenNMS is a fully open source solution.
What is OpenNMS horizon?
OpenNMS Horizon Horizon is an open-source solution that helps you visualize and monitor everything on your local and remote networks. It offers comprehensive fault, performance, traffic monitoring, and alarm generation in one place.
Who uses OpenNMS?
OpenNMS is most often used by companies with 50-200 employees and 10M-50M dollars in revenue....Who uses OpenNMS?CompanyFederal Emergency Management AgencyRevenue10M-50MCompany Size50-200CompanyComcast CorporationWebsitexfinity.com13 more rows
What is OpenNMS minion?
Distributed Monitoring with OpenNMS Minion A Minion is a lightweight stateless service that enables OpenNMS to communicate with devices and services in hard-to-reach locations. Minions are best suited for deployment at remote network locations that the core OpenNMS server may not have direct access to.
How do I download from OpenNMS?
Installing OpenNMS requires the following prerequisites:A configured Yum or APT Package Repository for your platform (Linux only)Internet access to download and verify OpenNMS packages from the Yum or APT package repositories.Oracle Java SE Development Kit 8 environment.More items...
How do I open OpenNMS?
ShutdownLogin to the Horizon UI.In the top right corner choose User name→Configure OpenNMS:Under Event Management, turn off Notification Status and click Update.
How do I configure OpenNMS?
We provide RHEL 7 alternatives where applicable.Step 1: Install OpenNMS Horizon. Add yum repository and import GPG key. ... Step 2: Initialize and set up PostgreSQL. Initialization of the PostgreSQL database. ... Step 3: Initialize and start OpenNMS Horizon. ... Step 4: First Login and change default password.
How do I stop OpenNMS?
Stop the Network Monitoring service on the WebUI and disable the OpenNMS service:Go to Platform > Administration > Applications , right-click Network Management Platform , then select Manage Services . ... From the Manage Services window and with "Network Monitoring" highlighted, click the Stop . (More items...•
Scalable
Dynamic scalability for data processing. Monitor tens of thousands of data points via a distributed and tiered system.
Extensible
Event-driven architecture allows extension of service polling and data collection frameworks, and flexible workflow integration.
Supported
Supported by a large community of users and commercially by The OpenNMS Group.
Open Source
Published under the AGPLv3 license, OpenNMS is a fully open source solution.
OpenNMS Products Affected by Apache Log4j Vulnerability CVE-2021-44228, CVE-2021-45046, and CVE-2021-45105 (updated Dec. 20, 2021)
Serious remote code execution (RCE) and denial of service (DOS) vulnerabilities in Apache Log4j could affect customers running some OpenNMS products. These vulnerabilities could [...]
OpenNMS joins Hacktoberfest 2021
There will be just one Hacktoberfest 2021 and it is coming soon! The OpenNMS community will participate and we are looking for contributors [...]
What is OpenNMS?
Businesses and enterprises looking for an extensible and flexible network monitoring solution might find that OpenNMS is the right tool for the job. With it, network topologies, services, applications, IT ecosystems, and interfaces can be monitored.
OpenNMS Benefits
The main benefits of OpenNMS are its service monitors, its event-driven architecture, and its dashboard components.
About this documentation
This documentation includes information on the OpenNMS components listed above, including deployment, configuration, use, and maintenance.
Legal Notice
OpenNMS is the creation of numerous people and organizations, operating under the umbrella of the OpenNMS project. The source code is published under the GNU Affero GPL, version 3 or later and is Copyright © 2002-2021 The OpenNMS Group, Inc.
Is OpenNMS Horizon open source?
OpenNMS Horizon and Meridian are both fully open source and licensed under the AGPLv3. What's the difference? Horizon is available to download from our repository on Github for free and releases early and often. Focused on innovation, Horizon contains the latest updates to OpenNMS; however, not all features may be production-ready.
Does OpenNMS use PostgreSQL?
The core of OpenNMS uses PostgreSQL. It can be on the same server for smaller deployments, but we recommend using a separate cluster for better performance in larger networks. Depending on which features you configure, you may require other data stores.
What is OpenNMS?
Conclusion. OpenNMS is a free and open-source network monitoring and network management platform used for managing enterprise networks around the world. It is based on Java and is designed to manage thousands of devices from a central location. It has the ability to discover and monitor the services or nodes automatically in your network.
How to install OpenNMS?
First, add the GPG key with the following command: Once the GPG key is added, run the following command to add the OpenNMS repo. Next, you can install the OpenNMS by running the following command: This will install OpenNMS, PostgreSQL and other packages in your server.
How to change default password in OpenNMS?
Click on the Opt-in to send anonymous usage statistics to OpenNMS. You should see the OpenNMS dashboard in the following page: Click on the Admin => Change password to change the default password. You should see the following page: Change your default password and click on the Submit button.
