LibreNMS is a fork of the Observium project. Once the software is installed, the web interface makes it very easy to add a host to be monitored or you can use automated discovery. Unlike other tools like Nagios and CactiLibreNMS by default creates graphs and pollers for just about every metric you could want on a server or network device.

These plugins allow you to leverage one of the most powerful features of Nagios without having to work with the complicated configuration of Nagios. Although it can do standard e-mail or SMS alerting, it goes further with many integrations. These alerts can be set for very specific conditions and can be made dependent on upstream devices.

This allows for using other tools like Ansible for setting up and maintaining the inventory of devices in LibreNMS. It also allows all of the data collected by LibreNMS to be leveraged easily by other systems. For managed service providers or businesses where billing back departments for services is allowed, LibreNMS includes a billing system. This system allows you to configure a price per Megabyte for an interface and then create bills based on the SNMP data.

Not a feature per se, but very important, the documentation for LibreNMS is excellent. This is especially true when you compare it to many other open source packages. The documentation and examples are well written and cover almost anything you could want to do with the package. LibreNMS is a full featured product that is easy to standup quickly. Have you given it a try? What do you think about it? Your email address will not be published. Notify me of follow-up comments by email.

Notify me of new posts by email. This site uses Akismet to reduce spam. Learn how your comment data is processed.Generate bandwidth bills for ports on your network based on usage or transfer.

Does your company use LibreNMS? Support its development [Become a Sponsor]. Want to give back to the community? We specialize in providing Internet to both urban and rural areas using wireless and cabled technology. We monitor and graph thousands of our customer and corporate devices through several programs. We found LibreNMS to be an excellent product to use with a friendly and supportive team. We plan on supporting and working with the highly professional and skilled developers on the LibreNMS team for years to come.

Toggle navigation. Customisable alerting Highly flexible alerting system, notify via email, irc, slack and more. Billing system Generate bandwidth bills for ports on your network based on usage or transfer. Automatic Updates Stay upto date automatically with bug fixes, new features and more. Distributed Polling Horizontal scaling to grow with your network.

Android App Native Android App is available which provides core functionality.

Configuring notifications

Support We have a few ways to get in touch, the most responsive and widely used is our Discord server. Please only use GitHub issues for new devices.

Feature requests and Bugs should be posted on our community forum. Discord No registration required. Community Site. GitHub Issues. Twitter librenms. Online Docs.

setup librenms alerts

Thanks to everyone that supports LibreNMS. Backers Want to give back to the community?Published: Author: Remy van Elst Text only version of this article. LibreNMS is becoming one of my favorite monitoring tools.

Setup LibreNMS on Ubuntu 16.04 | 18.04 | 18.10 with Nginx, MariaDB and PHP 7.2-FPM

Setup and getting started is easy and it has enough advanced options and tunables. I recently discovered that LibreNMS is able to check services as well. Services, in this context, means, executing Nagios plugins like check http, check ping, etc. The performance data, if available, is graphed automatically. Alerting is done with the regular LibreNMS alerts.

This guide covers the setup of services it's not enabled by default and a few basic checks, like an http health check, certificate expiry and SSH monitoring. You need a LibreNMS server for this guide to work. The project provides excellent documentation. For those unfamiliar with Nagios, it is a monitoring system which can execute checks. These checks are scripts and progams which take input for example, which host to check, tresholdsdo a check and then return an exit code and some performance data.

The plugins can be in any language, Nagios only cares about the exit codes. They can be the following:. This plugin checks if the site returns a OK and if so, gives exit status 0.

How to enable PushBullet notification in LibreNMS

If not, for example because of a timeout, access denied or 50x errorit will return status 1 or 2. Nagios then can do all kinds of alerting based on those statusses. Performance data is comma seperated value data added after the status output in the command result. This can be anything, for example, the time the HTTP request took. Since you can write these scripts yourself any monitoring system that uses these plugins is very extensible. It can check anything you want as long as you can write a script for it.

This makes the monitoring tool very powerfull, you're not limited to what they provide. To read more about monitoring, you can read one of my other articles. Service checks are not enabled by default in LibreNMS.

The documentation explains how to enable the module. Edit your config file:. You must have a host in LibreNMS to be able to add service checks. If this device does not accept ICMP ping traffic, you can disable that as well. Change username and password to a long and secure name and password 8 characters minimum.

Restart snmpd:. Add a rule in your firewall to only allow access to UDP port from your monitoring service and deny all other traffic. Make sure you added a host as described above. You can navigate to a host and click the "Services" tab, then click "Add service".

In the top menu bar you can also click "Services", "Add Service". You then have to select the host as well. The type is the nagios plugin you want to use.It helps you monitor, search and analyse the vast amount of data, especially in a larger environments into a simple format that you can easily read and digest….

LibreNMS supports majority of the network devices in use today… from many major manufacturers… including vast majority of the networking devices deployed…. This brief tutorial is going to show students and new users how to install LibreNMS software on Ubuntu For more about LibreNMS, please check its homepage …. After installing Nginxthe commands below can be used to stop, start and enable Nginx service to always start up with the server boots.

To test Nginx setup, open your browser and browse to the server hostname or IP address and you should see Nginx default test page as shown below. When you see that, then Nginx is working as expected. After installing MariaDB, the commands below can be used to stop, start and enable MariaDB service to always start up when the server boots.

Run these on Ubuntu After that, run the commands below to secure MariaDB server by creating a root password and disallowing remote root access. Then type the password you created above to sign on… if successful, you should see MariaDB welcome message.

PHP 7. After installing PHP 7. Then make the changes on the following lines below in the file and save. The value below is great settings to apply in your environments.

After making the change above, save the file and close out…. Next, restart Nginx by running the commands below:. First run the commands below to create a blank LibreNMS. Over time these can become large and be rotated out.

To rotate out the old logs you can use the provided logrotate config file:. This file will control how users access LibreNMS content… Run the commands below to create a new configuration file called librenms. Verify that all the PHP requirements are met… then continue with the database configuration… Type the database connection info you created above and continue…. Your email address will not be published.

setup librenms alerts

This site uses Akismet to reduce spam. Learn how your comment data is processed. Skip to content. To install Nginx HTTP on Ubuntu server, run the commands below… sudo apt update sudo apt install nginx After installing Nginxthe commands below can be used to stop, start and enable Nginx service to always start up with the server boots. Leave a Reply Cancel reply Your email address will not be published.GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together.

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Already on GitHub?

Sign in to your account. I just want to ask how to config the e-mailing alert system of LibreNMS using docker? Thank you so much! As an backend only SMPT is supported in this container. That was a quick response. I'm testing two libreNMS instances, one deployed locally and another one in docker, I'm trying the two with the same configuration but it seems the docker fails to send me a test e-mail.

Can you please give me a sample config? Where can I track the e-mail process inside the container? I want to use my Gmail account to send mail. What I've seen on your screenshot it seems that you have your own mail domain.

I'm confused with the config of Docker. My unqualified host name 5dcffbb24 unknown; sleeping for retry is still killing any of my configuration. I don't know how to configure this alerting now. I was able to fix this by setting a FQDN name to my container. I personally use docker compose, so the following worked for me:. I have the same issue, but don't use docker compose. Is there a solution for this, perhaps a variable we can declare or other alerting options being enabled?

Did you try the domainname and hostname settings?The Alertmanager handles alerts sent by client applications such as the Prometheus server. It takes care of deduplicating, grouping, and routing them to the correct receiver integration such as email, PagerDuty, or OpsGenie. It also takes care of silencing and inhibition of alerts.

The following describes the core concepts the Alertmanager implements. Consult the configuration documentation to learn how to use them in more detail. Grouping categorizes alerts of similar nature into a single notification.

LibreNMS – Setting up Alerts to monitor Voltage on Mikrotik Routers

This is especially useful during larger outages when many systems fail at once and hundreds to thousands of alerts may be firing simultaneously. Example: Dozens or hundreds of instances of a service are running in your cluster when a network partition occurs.

Half of your service instances can no longer reach the database. Alerting rules in Prometheus were configured to send an alert for each service instance if it cannot communicate with the database. As a result hundreds of alerts are sent to Alertmanager. As a user, one only wants to get a single page while still being able to see exactly which service instances were affected.

Thus one can configure Alertmanager to group alerts by their cluster and alertname so it sends a single compact notification. Grouping of alerts, timing for the grouped notifications, and the receivers of those notifications are configured by a routing tree in the configuration file.

Inhibition is a concept of suppressing notifications for certain alerts if certain other alerts are already firing. Example: An alert is firing that informs that an entire cluster is not reachable. Alertmanager can be configured to mute all other alerts concerning this cluster if that particular alert is firing.

This prevents notifications for hundreds or thousands of firing alerts that are unrelated to the actual issue. Silences are a straightforward way to simply mute alerts for a given time.

setup librenms alerts

A silence is configured based on matchers, just like the routing tree. Incoming alerts are checked whether they match all the equality or regular expression matchers of an active silence. If they do, no notifications will be sent out for that alert. The Alertmanager has special requirements for behavior of its client.

Those are only relevant for advanced use cases where Prometheus is not used to send alerts. Alertmanager supports configuration to create a cluster for high availability.

It's important not to load balance traffic between Prometheus and its Alertmanagers, but instead, point Prometheus to a list of all Alertmanagers.Contacts will be gathered automatically and passed to the configured transports. By default the Contacts will be only gathered when the alert triggers and will ignore future changes in contacts for the incident. If you want contacts to be re-gathered before each dispatch, please set 'Updates to contact email addresses not honored' to Off in the WebUI.

To include users that have Global-ReadAdministrator or Normal-User permissions it is required to toggle the options:. You need to install an additional php module : bcmath eg php72w-bcmath for Centos 7. Alertmanager is an alert handling software, initially developed for alert processing sent by Prometheus. It has built-in functionality for deduplicating, grouping and routing alerts based on configurable criteria.

LibreNMS uses alert grouping by alert rule, which can produce an array of alerts of similar content for an array of hosts, whereas Alertmanager can group them by alert meta, ideally producing one single notice in case an issue occurs.

It is possible to configure as much label values as required in Alertmanager Options section.

setup librenms alerts

Every label and it's value should be entered as a new line. It can be used in multiple ways:. The example below will use the API named sms-api of my. Refer to your service documentation to configure it properly. The example below will use the API named wall-display of my.

The example below will use the API named component of my. Copy your access token from the Boxcar app or from the Boxcar. Canopsis is a hypervision tool. LibreNMS can send alerts to Canopsis which are then converted to canopsis events. Cisco Spark now known as Webex Teams. To make this possible you need to have a RoomID and a token.

You can also choose to send alerts using Markdown syntax. Enabling this option provides for more richly formatted alerts, but be sure to adjust your alert template to account for the Markdown syntax. Clickatell Docs. Simple html tags are stripped from the message. The only required value is for url, without this no call to Discord will be made.

LibreNMS - Error: Missing dependencies! Run the following command to fix:

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