Changes between Initial Version and Version 1 of Cnbp2019/Agenda/MonitoringLab

Timestamp:

Feb 4, 2019, 8:10:22 AM (7 years ago)

Author:

admin

Comment:

--

Cnbp2019/Agenda/MonitoringLab

@@ +1 @@
+= Monitoring Lab Setup =
+----
+
+Below are the requirements for running LibreNMS on Ubuntu 18.04:
+
+* Database Server – We will use MariaDB
+* PHP 7.2
+* Web Server – We will use Nginx
+
+== Install LEMP stack (MariaDB, Nginx, and PHP) ==
+=== Installation of MariaDB ===
+
+LibreNMS is not fully compatible with MySQL strict mode, for now, please disable this after mysql is installed.
+
+` sudo vim /etc/mysql/mariadb.cnf `
+
+Within the ` [mysqld]` section please add:
+{{{
+innodb_file_per_table=1
+sql-mode=""
+lower_case_table_names=0
+}}}
+
+Then restart mysql `sudo systemctl restart mysql`
+
+Now you need to create a database for LibreNMS.
+
+{{{
+mysql –u root –p
+MariaDB [(none)]> CREATE DATABASE librenms CHARACTER SET utf8 COLLATE utf8_unicode_ci;
+MariaDB [(none)]> CREATE USER 'librenms'@'localhost' IDENTIFIED BY 'Strongpassword';
+MariaDB [(none)]> GRANT ALL PRIVILEGES ON librenms.* TO 'librenms'@'localhost';
+MariaDB [(none)]> FLUSH PRIVILEGES;
+MariaDB [(none)]> exit
+}}}
+
+=== Installation of PHP ===
+
+Ubuntu 18.04 has PHP 7.2 in its repositories. Install it by running the commands below on your terminal
+
+{{{
+sudo apt-get -y install wget php php-pear php-cgi php-common curl php-curl \
+php-mbstring php-gd php-mysql php-gettext php-bcmath \
+php-imap php-json php-xml php-snmp php-fpm php-zip
+}}}
+
+To confirm the php version installed, use the command `php –v`
+
+it should give you a similar output as below
+
+{{{
+#php -v
+
+PHP 7.2.8 (cli) (built: Jul 17 2018 09:50:46) ( NTS )
+Copyright (c) 1997-2018 The PHP Group
+Zend Engine v3.2.0, Copyright (c) 1998-2018 Zend Technologies
+}}}
+
+Configure and Start PHP-FPM
+Ensure date.timezone is set in php.ini to your preferred time zone:
+Edit both files:
+sudo vim /etc/php/7.2/fpm/php.ini
+sudo vim /etc/php/7.2/cli/php.ini
+
+Change date.timezone under [Date] section:
+[Date]
+; Defines the default timezone used by the date functions
+; http://php.net/date.timezone
+date.timezone = Asia/Colombo
+Restart php fpm:
+sudo systemctl restart php7.2-fpm.service
+
+For this setup, we will use Nginx as a web server for LibreNMS, install it by running:
+sudo apt-get install nginx
+
+Step 2: Download and Install LibreNMS
+We will download and install LibreNMS in this step. If you don’t have git, first install it:
+$ sudo apt-get install git
+
+LibreNMS will run under its own user called librenms which we need to add:
+sudo useradd -r -M -d /opt/librenms librenms
+getent passwd librenms
+
+
+output:
+
+librenms:x:997:996::/opt/librenms:/bin/sh
+Add this user to web user group www-data
+sudo usermod -a -G librenms www-data
+
+When done. proceed to install packages required by LibreNMS
+
+sudo apt-get update
+sudo apt install rrdtool whois fping imagemagick graphviz  mtr-tiny \
+nmap python-mysqldb snmp snmpd python-memcache mtr-tiny acl
+
+Clone LibreNMS source code from github:
+git clone https://github.com/librenms/librenms.git librenms
+
+output: 
+Cloning into 'librenms'...
+remote: Counting objects: 130428, done.
+remote: Compressing objects: 100% (27/27), done.
+remote: Total 130428 (delta 10), reused 10 (delta 4), pack-reused 130396
+Receiving objects: 100% (130428/130428), 128.54 MiB | 19.52 MiB/s, done.
+Resolving deltas: 100% (88754/88754), done.
+Checking out files: 100% (8476/8476), done.
+
+Move the folder librenms to /opt
+
+sudo mv librenms/ /opt/
+
+Change permission of the directory:
+sudo chown -R librenms:librenms /opt/librenms/
+sudo chmod -R 775 /opt/librenms/
+
+Configure snmpd
+sudo cp /opt/librenms/snmpd.conf.example /etc/snmp/snmpd.conf
+sudo vim /etc/snmp/snmpd.conf
+
+Edit the text which says RANDOMSTRINGGOESHERE and set your own community string.
+
+curl -o distro https://raw.githubusercontent.com/librenms/librenms-agent/master/snmp/distro
+chmod +x distro
+sudo mv distro  /usr/bin/distro
+
+Restart snmpd
+
+sudo systemctl restart snmpd
+
+Create LibreNMS Cron job
+Run the command below to set cron job:
+
+sudo cp /opt/librenms/librenms.nonroot.cron /etc/cron.d/librenms
+Copy logrotate config
+LibreNMS keeps logs in /opt/librenms/logs. Over time these can become large and be rotated out. To rotate out the old logs you can use the provided logrotate config file:
+
+sudo cp /opt/librenms/misc/librenms.logrotate /etc/logrotate.d/librenms
+
+Fix LibreNMS Permissions
+Finally, fix all permissions
+sudo chown -R librenms:librenms /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/
+
+Configure Nginx:
+Let’s create the VirtualHost definition for Nginx to be used by LibreNMS.
+sudo vim /etc/nginx/conf.d/librenms.conf
+
+server {
+ listen      80;
+ server_name librenms.example.com;
+ root        /opt/librenms/html;
+ index       index.php;
+
+ charset utf-8;
+ gzip on;
+ gzip_types text/css application/javascript text/javascript application/x-javascript image/svg+xml text/plain text/xsd text/xsl text/xml image/x-icon;
+ location / {
+  try_files $uri $uri/ /index.php?$query_string;
+ }
+ location /api/v0 {
+  try_files $uri $uri/ /api_v0.php?$query_string;
+ }
+ location ~ \.php {
+  include fastcgi.conf;
+  fastcgi_split_path_info ^(.+\.php)(/.+)$;
+  fastcgi_pass unix:/var/run/php/php7.2-fpm.sock;
+ }
+ location ~ /\.ht {
+  deny all;
+ }
+}
+Check syntax:
+
+sudo nginx –t
+
+output:
+
+nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
+nginx: configuration file /etc/nginx/nginx.conf test is successful
+
+if all is okay, restart nginx:
+
+sudo systemctl restart nginx
+
+
+Run composer install:
+
+cd /opt/librenms
+./scripts/composer_wrapper.php install --no-dev
+
+Now open your web browser and start the installer:
+
+http://librenms.example.com/install.php