How To Install LibreNMS on Ubuntu 16.04 LTS

Install LibreNMS on Ubuntu 16.04 LTS

In this tutorial, we will show you how to install LibreNMS on Ubuntu 16.04 LTS. For those of you who didn’t know, LibreNMS is an open-source auto-discovering network monitoring tool for servers and network hardware. It supports a wide range of network hardware like Cisco, Juniper, Brocade, Foundry, HP, and operating systems including Linux and Windows. LibraNMS is a community-based fork of the Network monitoring tool “Observium“, released under GPLv3.

This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you the step-by-step installation LibreNMS network monitoring tool on an Ubuntu 16.04 (Xenial Xerus) server.

LibreNMS Features

  • Automatic discovery
  • Customizable alerting
  • API Access
  • Billing system
  • Automatic Updates
  • Distributed Polling
  • iOS and Android App
  • Unix Agent
  • And many more

Install LibreNMS on Ubuntu 16.04 LTS

Step 1. First, make sure that all your system packages are up-to-date by running the following apt-get commands in the terminal.

sudo apt-get update
sudo apt-get upgrade

Step 2. Install LAMP (Linux, Apache, MariaDB, PHP)  server.

A Ubuntu 16.04 LAMP server is required. If you do not have LAMP installed, you can follow our guide here. Also, install all required PHP modules:

apt-get install php7.0-mysql php7.0-curl php7.0-json php7.0-cgi php7.0 libapache2-mod-php7.0 php7.0-mcrypt php7.0-xmlrpc php7.0-gd

Step 3. Installing LibreNMS.

First, install the required packages by LibreNMS:

apt-get install composer fping git graphviz imagemagick mtr-tiny nmap python-memcache python-mysqldb rrdtool snmp whois

Next, Add a LibreNMS user:

useradd librenms -d /opt/librenms -M -r
usermod -a -G librenms www-data

Then, clone the LibreNMS source code through Git:

cd /opt/
git clone librenms

Set the permission:

chown -R librenms:librenms /opt/librenms

Step 4. Configuring MariaDB for LibreNMS.

By default, MariaDB is not hardened. You can secure MariaDB using the mysql_secure_installation script. you should read and below each step carefully which will set a root password, remove anonymous users, disallow remote root login, and remove the test database and access to secure MariaDB:


Configure it like this:

- Set root password? [Y/n] y
- Remove anonymous users? [Y/n] y
- Disallow root login remotely? [Y/n] y
- Remove test database and access to it? [Y/n] y
- Reload privilege tables now? [Y/n] y

Next, we will need to log in to the MariaDB console and create a database for the LibreNMS. Run the following command:

mysql -u root -p

This will prompt you for a password, so enter your MariaDB root password and hit Enter. Once you are logged in to your database server you need to create a database for LibreNMS installation:

MariaDB [(none)]> CREATE DATABASE librenms CHARACTER SET utf8 COLLATE utf8_unicode_ci;
MariaDB [(none)]> CREATE USER 'librenms'@'localhost' IDENTIFIED BY 'PASSWORD';
MariaDB [(none)]> GRANT ALL PRIVILEGES ON librenms.* TO 'librenms'@'localhost';
MariaDB [(none)]> exit

Next, open the MariaDB configuration file and add the following lines under [mysqld] section:

### nano /etc/mysql/mariadb.conf.d/50-server.cnf


Restart MariaDB for the changes to take effect:

systemctl restart mariadb

Step 5. Configuring Apache web server for LibreNMS.

Create a new virtual host directive in Apache. For example, create a new Apache configuration file named ‘librenms.conf’ on your virtual server:

sudo a2enmod rewrite
touch /etc/apache2/sites-available/librenms.conf
ln -s /etc/apache2/sites-available/librenms.conf /etc/apache2/sites-enabled/librenms.conf
nano /etc/apache2/sites-available/librenms.conf

Add the following lines:

<VirtualHost *:80>
DocumentRoot /opt/librenms/html/
AllowEncodedSlashes NoDecode
<Directory "/opt/librenms/html/">
Options FollowSymLinks
AllowOverride All
Order allow,deny
allow from all
ErrorLog /var/log/apache2/
CustomLog /var/log/apache2/ common

Now, we can restart the Apache webserver so that the changes take place:

a2ensite librenms.conf
a2enmod rewrite
systemctl restart apache2.service

Step 6. Configure Firewall.

Allow apache through the firewall so that users can able to access the LibreNMS portal from an external machine:

ufw allow 80/tcp
ufw reload

Step 7. Accessing LibreNMS.

LibreNMS will be available on HTTP port 80 by default. Open your favorite browser and navigate to or http://server-ip/ and complete the required steps to finish the installation. If you are using a firewall, please open port 80 to enable access to the control panel.

Congratulations! You have successfully installed LibreNMS. Thanks for using this tutorial for installing the LibreNMS network monitoring tool on your Ubuntu 16.04 LTS. For additional help or useful information, we recommend you to check the official LibreNMS website.

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r00t is a seasoned Linux system administrator with a wealth of experience in the field. Known for his contributions to, r00t has authored numerous tutorials and guides, helping users navigate the complexities of Linux systems. His expertise spans across various Linux distributions, including Ubuntu, CentOS, and Debian. r00t's work is characterized by his ability to simplify complex concepts, making Linux more accessible to users of all skill levels. His dedication to the Linux community and his commitment to sharing knowledge makes him a respected figure in the field.
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