Install LibreNMS on Debian/Ubuntu

#LibreNMS #NetworkMonitoring #Linux

Full steps can be found at https://i12bretro.github.io/tutorials/0415.html

   01. Log into the Debian device
   02. Run the following commands in a terminal:
         # update software repositories
         sudo apt update
         # install software updates
         sudo apt upgrade -y
         # install pre-requisites
         sudo apt install acl curl composer fping git graphviz imagemagick mariadb-client mariadb-server mtr-tiny nmap rrdtool snmp snmpd whois unzip python3-pymysql python3-dotenv python3-redis python3-setuptools python3-systemd python3-pip -y
         # install Apache and MySQL
         sudo apt install apache2 libapache2-mod-fcgid mariadb-server mariadb-client -y
         # install PHP components
         sudo apt install php7.3-cli php7.3-curl php7.3-fpm php7.3-gd php7.3-json php7.3-mbstring php7.3-mysql php7.3-snmp php7.3-xml php7.3-zip -y
         # create librenms user
         sudo useradd librenms -d /opt/librenms -M -r -s "$(which bash)"
         # clone librenms github repo
         sudo git clone https://github.com/librenms/librenms.git /opt/librenms
         # set permissions
         sudo chown -R librenms:librenms /opt/librenms
         sudo chmod 771 /opt/librenms
         sudo setfacl -d -m g::rwx /opt/librenms/rrd /opt/librenms/logs /opt/librenms/bootstrap/cache/ /opt/librenms/storage/
         sudo setfacl -R -m g::rwx /opt/librenms/rrd /opt/librenms/logs /opt/librenms/bootstrap/cache/ /opt/librenms/storage/
         # install composer dependencies
         sudo su - librenms
         ./scripts/composer_wrapper.php install --no-dev
         exit
         # set time zone for PHP fpm
         sudo nano /etc/php/7.3/fpm/php.ini
   03. Press CTRL+W to search ≫ type timezone ≫ Press Enter
   04. Remove the ; to uncomment the line
   05. Type in a valid timezone (https://php.net/manual/en/timezones.php)
   06. Press CTRL+O, Enter, CTRL+X to write the changes to php.ini
   07. Continue with the following commands in a terminal:
         # set time zone for PHP cli
         sudo nano /etc/php/7.3/cli/php.ini
   08. Press CTRL+W to search ≫ type timezone ≫ Press Enter
   09. Remove the ; to uncomment the line
   10. Type in a valid timezone (https://php.net/manual/en/timezones.php)
   11. Press CTRL+O, Enter, CTRL+X to write the changes to php.ini
   12. Continue with the following commands in a terminal:
   13.          # set system time zone
         sudo timedatectl set-timezone America/New_York
         # edit mariaDB configuration
         sudo nano /etc/mysql/mariadb.conf.d/50-server.cnf
   14. Paste the following under the [mysqld] section
         innodb_file_per_table=1
         lower_case_table_names=0
   15. Press CTRL+O, Enter, CTRL+X to write the changes to 50-server.cnf
   16. Continue with the following commands in a terminal:
         # restart mariadb service
         sudo systemctl restart mariadb
         # configure the MySQL database
         sudo su
         mysql_secure_installation
   17. Press Enter to login as root
   18. Type Y and press Enter to set a root password, type the password twice to confirm
   19. Type Y and press Enter to remove anonymous users
   20. Type Y and press Enter to disallow root login remotely
   21. Type Y and press Enter to remove the test database
   22. Type Y and press Enter to reload privilege tables
   23. Run the following command to login into MySQL:
         mysql -u root -p
   24. Authenticate with the root password set earlier
   25. Run the following commands to create the LibreNMS database and database user
         CREATE DATABASE librenms CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
         CREATE USER 'librenms_rw'@'localhost' IDENTIFIED BY 'Libr3NM$!';
         GRANT ALL PRIVILEGES ON librenms.* TO 'librenms_rw'@'localhost';
         FLUSH PRIVILEGES;
         EXIT;
         exit
   26. Continue with the following commands:
         # make a copy of www.conf
         sudo cp /etc/php/7.3/fpm/pool.d/www.conf /etc/php/7.3/fpm/pool.d/librenms.conf
         # edit librenms.conf
         sudo nano /etc/php/7.3/fpm/pool.d/librenms.conf
   27. Replace [www] with [librenms]
   28. Change the user and group to librenms
         user = librenms
         group = librenms
   29. Change the listen to php-fpm-librenms.sock
         listen = /run/php-fpm-librenms.sock
   30. Press CTRL+O, Enter, CTRL+X to write the changes to librenms.conf
   31. Continue with the following commands:
         # create librenms apache conf
         sudo nano /etc/apache2/sites-available/librenms.conf
   32. Paste the following configuration into librenms.vhost
         ≪VirtualHost *:80≫
         DocumentRoot /opt/librenms/html/
         #ServerName librenms.example.com
....Full steps can be found on GitHub [link at the top]
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