安裝基本上跟教學文差不會太多

首先，裝好ubuntu22.04後，要來安裝所需的軟體包

$ apt-get install net-tools openssh-server

$ apt install acl curl fping git graphviz imagemagick mariadb-client mariadb-server mtr-tiny apache2 libapache2-mod-php8.1 nmap php-cli php-curl php-fpm php-gd php-gmp php-json php-mbstring php-mysql php-snmp php-xml php-zip rrdtool snmp snmpd whois unzip python3-pymysql python3-dotenv python3-redis python3-setuptools python3-systemd python3-pip

下載 libreNMS 原始碼

$ cd /opt
$ git clone https://github.com/librenms/librenms.git

新增一個 user 名為 librenms

$ useradd librenms -d /opt/librenms -M -r -s "$(which bash)"

將 libreNMS 目錄的擁有者設為 librenms

$ chown -R librenms:librenms /opt/librenms
$ chmod 771 /opt/librenms
$ setfacl -d -m g::rwx /opt/librenms/rrd /opt/librenms/logs /opt/librenms/bootstrap/cache/ /opt/librenms/storage/
$ setfacl -R -m g::rwx /opt/librenms/rrd /opt/librenms/logs /opt/librenms/bootstrap/cache/ /opt/librenms/storage/

設定librenms帳號密碼

$ passwd librenms

安裝 PHP 依賴項

$ su - librenms
$ cd /opt/librenms
$ ./scripts/composer_wrapper.php install --no-dev
$ exit

設定資料庫

systemctl restart mysql
mysql -uroot -p

這時候會在mysql模式下，就輸入下面這些指令，注意! password這邊要改成你要設定的password密碼

mysql>CREATE DATABASE librenms CHARACTER SET utf8 COLLATE utf8_unicode_ci;
CREATE USER 'librenms'@'localhost' IDENTIFIED BY 'password';
GRANT ALL PRIVILEGES ON librenms.* TO 'librenms'@'localhost';
FLUSH PRIVILEGES;
exit

vi /etc/mysql/mariadb.conf.d/50-server.cnf

//隨便找地方新增下面兩行後存檔離開
innodb_file_per_table=1
lower_case_table_names=0

systemctl restart mysql

設定php時區(請確認你的phpinfo裡面正確的php.ini位置)

nano /etc/php/8.1/apache2/php.ini

設定完記得/etc/init.d/apache2 restart

date.timezone = "Asia/Taipei"

設定系統時區

timedatectl set-timezone Asia/Taipei

vi /etc/apache2/sites-available/librenms.conf

<VirtualHost *:80>
  DocumentRoot /opt/librenms/html/
 # ServerName  librenms.lab.com

  AllowEncodedSlashes NoDecode
  <Directory "/opt/librenms/html/">
    Require all granted
    AllowOverride All
    Options FollowSymLinks MultiViews
  </Directory>
</VirtualHost>

注意：如果這是您在此服務器上託管的唯一站點（應該是:)），那麼您將需要禁用默認站點。

$ a2dissite 000-default
$ a2ensite librenms.conf 
$ a2enmod rewrite
$ systemctl restart apache2

#其實到這邊網站應該就可以打得開了，剩下就是一些權限要處理，如果你只是測試教學用的話，你可以輸入下面這樣直接處理掉權限問題. 但是不太安全就是
chmod 777 /opt/librenms/logs/librenms.log
chgrp www-data /opt/* -R

設定本機snmpd服務

cp /opt/librenms/snmpd.conf.example /etc/snmp/snmpd.conf
curl -o /usr/bin/distro https://raw.githubusercontent.com/librenms/librenms-agent/master/snmp/distro
chmod +x /usr/bin/distro

定時任務

cp /opt/librenms/librenms.nonroot.cron /etc/cron.d/librenms

複製 logrotate 配置

LibreNMS 保持登錄/opt/librenms/logs。隨著時間的推移，這些可能會變大並被輪換出來。要輪換舊日誌，您可以使用提供的 logrotate 配置文件：

cp /opt/librenms/misc/librenms.logrotate /etc/logrotate.d/librenms