How to install LibreNMS for CentOS 7

再安裝用過Cacti、Whatsup、Zabbix後目前覺得此套介面最好用

目前還在摸索中

安裝筆記如下：
環境：CentOS 7.4 mini

yum install mariadb-server mariadb
systemctl start mariadb
firewall-cmd --permanent --add-service=mysql
firewall-cmd --reload
mysql_secure_installation

mysql_secure_installation
Enter current password for root (enter for none): 第一次設定，直接按 Enter 鍵即可
Set root password? [Y/n] 按 Y 設定資料庫 root 密碼
New password: 輸入新密碼
Re-enter new password: 再次輸入新密碼
Password updated successfully!

建立資料庫使用者與權限

mysql -u root -p

CREATE USER 'librenmsuser'@'localhost' IDENTIFIED BY 'librenmspassword';
GRANT ALL PRIVILEGES ON librenmsdb.* TO 'librenmsuser'@'localhost';
FLUSH PRIVILEGES;
exit;

設定資料庫參數

[mysqld] 
innodb_file_per_table=1
sql-mode=""PRIVILEGES;
exit;

設定開機時自動啟動服務，重啟服務套用設定

systemctl enable mariadb

systemctl restart mariadb

安裝LibreNMS

安裝epel套件

yum install epel-release
rpm -Uvh https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm

安裝PHP7、net-snmp、httpd套件

yum -y install php70w php70w-cli php70w-gd php70w-mysql php70w-snmp php70w-pear php70w-curl php70w-common httpd net-snmp mariadb ImageMagick jwhois nmap mtr rrdtool MySQL-python net-snmp-utils cronie php70w-mcrypt fping git vim
pear install Net_IPv4-1.3.4
pear install Net_IPv6-1.2.2b2

設定Git 套件 設定使用者名稱與信箱

git config --global user.name "username"
git config --global user.email user@email.com

設定PHP

vim /etc/php.ini 

date.timezone = "Asia/Taipei"

由GIT安裝LibreNMS

cd /opt
 git clone https://github.com/librenms/librenms.git librenms
 
#Add librenms user
useradd librenms -d /opt/librenms -M -r
usermod -a -G librenms apache

cd /opt/librenms
mkdir rrd logs
chmod 775 rrd

設定Apache Config

 vim /etc/httpd/conf.d/librenms.conf

  DocumentRoot /opt/librenms/html/
  ServerName  librenms.example.com
  CustomLog /opt/librenms/logs/access_log combined
  ErrorLog /opt/librenms/logs/error_log
  AllowEncodedSlashes NoDecode
  
    Require all granted
    AllowOverride All
    Options FollowSymLinks MultiViews
  

設定防火牆開啟服務

firewall-cmd --permanent --add-service=http
firewall-cmd --reload

設定開機時自動啟動Httpd服務，重啟服務套用設定

systemctl enable httpd

systemctl start httpd

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