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        <title>Install LibreNMS on Debian/Ubuntu</title>
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            <h1>Install LibreNMS on Debian/Ubuntu</h1>
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          <ol>
	<li>Log into the Debian device</li>
	<li>Run the following commands in a terminal:
	<div class="codeBlock"># update software repositories<br />
	sudo apt update<br />
	# install software updates<br />
	sudo apt upgrade -y<br />
	# install pre-requisites<br />
	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<br />
	# install Apache and MySQL<br />
	sudo apt install apache2 libapache2-mod-fcgid mariadb-server mariadb-client -y<br />
	# install PHP components<br />
	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<br />
	# create librenms user<br />
	sudo useradd librenms -d /opt/librenms -M -r -s &quot;$(which bash)&quot;<br />
	# clone librenms github repo<br />
	sudo git clone https://github.com/librenms/librenms.git /opt/librenms<br />
	# set permissions<br />
	sudo chown -R librenms:librenms /opt/librenms<br />
	sudo chmod 771 /opt/librenms<br />
	sudo setfacl -d -m g::rwx /opt/librenms/rrd /opt/librenms/logs /opt/librenms/bootstrap/cache/ /opt/librenms/storage/<br />
	sudo setfacl -R -m g::rwx /opt/librenms/rrd /opt/librenms/logs /opt/librenms/bootstrap/cache/ /opt/librenms/storage/<br />
	# install composer dependencies<br />
	sudo su - librenms<br />
	./scripts/composer_wrapper.php install --no-dev<br />
	exit<br />
	# set time zone for PHP fpm<br />
	sudo nano /etc/php/7.3/fpm/php.ini</div>
	</li>
	<li>Press CTRL+W to search &gt; type timezone &gt; Press Enter</li>
	<li>Remove the ; to uncomment the line</li>
	<li>Type in a valid timezone (<a href="https://php.net/manual/en/timezones.php" target="_blank">https://php.net/manual/en/timezones.php</a>)</li>
	<li>Press CTRL+O, Enter, CTRL+X to write the changes to php.ini</li>
	<li>Continue with the following commands in a terminal:
	<div class="codeBlock"># set time zone for PHP cli<br />
	sudo nano /etc/php/7.3/cli/php.ini</div>
	</li>
	<li>Press CTRL+W to search &gt; type timezone &gt; Press Enter</li>
	<li>Remove the ; to uncomment the line</li>
	<li>Type in a valid timezone (<a href="https://php.net/manual/en/timezones.php" target="_blank">https://php.net/manual/en/timezones.php</a>)</li>
	<li>Press CTRL+O, Enter, CTRL+X to write the changes to php.ini</li>
	<li>Continue with the following commands in a terminal:</li>
	<li>
	<div class="codeBlock"># set system time zone<br />
	sudo timedatectl set-timezone America/New_York<br />
	# edit mariaDB configuration<br />
	sudo nano /etc/mysql/mariadb.conf.d/50-server.cnf</div>
	</li>
	<li>Paste the following under the [mysqld] section
	<p>innodb_file_per_table=1<br />
	lower_case_table_names=0</p>
	</li>
	<li>Press CTRL+O, Enter, CTRL+X to write the changes to 50-server.cnf</li>
	<li>Continue with the following commands in a terminal:
	<div class="codeBlock"># restart mariadb service<br />
	sudo systemctl restart mariadb<br />
	# configure the MySQL database<br />
	sudo su<br />
	mysql_secure_installation</div>
	</li>
	<li>Press Enter to login as root</li>
	<li>Type Y and press Enter to set a root password, type the password twice to confirm</li>
	<li>Type Y and press Enter to remove anonymous users</li>
	<li>Type Y and press Enter to disallow root login remotely</li>
	<li>Type Y and press Enter to remove the test database</li>
	<li>Type Y and press Enter to reload privilege tables</li>
	<li>Run the following command to login into MySQL:
	<div class="codeBlock">mysql -u root -p</div>
	</li>
	<li>Authenticate with the root password set earlier</li>
	<li>Run the following commands to create the LibreNMS database and database user
	<div class="codeBlock">CREATE DATABASE librenms CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;<br />
	CREATE USER &#39;librenms_rw&#39;@&#39;localhost&#39; IDENTIFIED BY &#39;Libr3NM$!&#39;;<br />
	GRANT ALL PRIVILEGES ON librenms.* TO &#39;librenms_rw&#39;@&#39;localhost&#39;;<br />
	FLUSH PRIVILEGES;<br />
	EXIT;<br />
	exit</div>
	</li>
	<li>Continue with the following commands:
	<div class="codeBlock"># make a copy of www.conf<br />
	sudo cp /etc/php/7.3/fpm/pool.d/www.conf /etc/php/7.3/fpm/pool.d/librenms.conf<br />
	# edit librenms.conf<br />
	sudo nano /etc/php/7.3/fpm/pool.d/librenms.conf</div>
	</li>
	<li>Replace [www] with [librenms]</li>
	<li>Change the user and group to librenms
	<p>user = librenms<br />
	group = librenms</p>
	</li>
	<li>Change the listen to php-fpm-librenms.sock
	<p>listen = /run/php-fpm-librenms.sock</p>
	</li>
	<li>Press CTRL+O, Enter, CTRL+X to write the changes to librenms.conf</li>
	<li>Continue with the following commands:
	<div class="codeBlock"># create librenms apache conf<br />
	sudo nano /etc/apache2/sites-available/librenms.conf</div>
	</li>
	<li>Paste the following configuration into librenms.vhost
	<p>&lt;VirtualHost *:80&gt;<br />
	DocumentRoot /opt/librenms/html/<br />
	#ServerName librenms.example.com</p>

	<p>AllowEncodedSlashes NoDecode<br />
	&lt;Directory &quot;/opt/librenms/html/&quot;&gt;<br />
	Require all granted<br />
	AllowOverride All<br />
	Options FollowSymLinks MultiViews<br />
	&lt;/Directory&gt;</p>

	<p># Enable http authorization headers<br />
	&lt;IfModule setenvif_module&gt;<br />
	SetEnvIfNoCase ^Authorization$ &quot;(.+)&quot; HTTP_AUTHORIZATION=$1<br />
	&lt;/IfModule&gt;</p>

	<p>&lt;FilesMatch &quot;.+\.php$&quot;&gt;<br />
	SetHandler &quot;proxy:unix:/run/php-fpm-librenms.sock|fcgi://localhost&quot;<br />
	&lt;/FilesMatch&gt;<br />
	&lt;/VirtualHost&gt;</p>
	</li>
	<li>Press CTRL+O, Enter, CTRL+X to write the changes to librenms.conf</li>
	<li>Continue with the following commands:
	<div class="codeBlock"># enable the librenms site and reload apache<br />
	sudo a2dissite 000-default<br />
	sudo a2enmod proxy_fcgi setenvif rewrite<br />
	sudo a2ensite librenms.conf<br />
	sudo systemctl restart apache2<br />
	sudo systemctl restart php7.3-fpm<br />
	# install dispatcher service<br />
	sudo su - librenms<br />
	pip3 install -r requirements.txt<br />
	exit<br />
	sudo cp /opt/librenms/misc/librenms.service /etc/systemd/system/librenms.service<br />
	sudo systemctl enable --now librenms.service<br />
	# enable snmp<br />
	sudo cp /opt/librenms/snmpd.conf.example /etc/snmp/snmpd.conf<br />
	sudo nano /etc/snmp/snmpd.conf</div>
	</li>
	<li>Change RANDOMSTRINGGOESHERE to a unique community string to use for SNMP</li>
	<li>Press CTRL+O, Enter, CTRL+X to write the changes to snmpd.conf</li>
	<li>Continue with the following commands:
	<div class="codeBlock"># download librenms snmp<br />
	sudo curl -o /usr/bin/distro https://raw.githubusercontent.com/librenms/librenms-agent/master/snmp/distro<br />
	# set permissions<br />
	sudo chmod +x /usr/bin/distro<br />
	# restart snmp service<br />
	sudo systemctl enable snmpd<br />
	sudo systemctl restart snmpd</div>
	</li>
	<li>Open a web browser and navigate to http://DNSorIP//install</li>
	<li>The LibreNMS setup screen should be displayed</li>
	<li>Click the Configure Database icon</li>
	<li>Select MySQL and fill out the database connection information as follows
	<p>Host: localhost<br />
	Port: 3306<br />
	User: librenms_rw<br />
	Password: Libr3NM$!<br />
	Database Name: librenms</p>
	</li>
	<li>Click the Check Credentials button</li>
	<li>Click the Build Database button</li>
	<li>Once the database has been created successfully, click the Created Admin User icon</li>
	<li>Enter a username, password and email address &gt; Click the Add User button</li>
	<li>Click the Finish Install icon</li>
	<li>Click the validate your install link</li>
	<li>Log in using the admin user credentials created earlier</li>
	<li>Welcome to LibreNMS</li>
</ol>

<p>Source: <a href="https://docs.librenms.org/Installation/Install-LibreNMS/" target="_blank">https://docs.librenms.org/Installation/Install-LibreNMS/</a></p>

<p>Check out <strong>for day in life</strong> on YouTube for more on LibreNMS: <a href="https://www.youtube.com/playlist?list=PLxiGkbpIzunT_YOwUEukOB6DpF8N8MXkQ" target="_blank">https://www.youtube.com/playlist?list=PLxiGkbpIzunT_YOwUEukOB6DpF8N8MXkQ</a></p>          </div>
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