PVE 虛擬機 Ubuntu Server 20.04 伺服器版本 安裝 LibreNMS

 PVE 虛擬機 Ubuntu Server 20.04 伺服器版本 安裝 LibreNMS 

PROXMOX Virtial Environment 先安裝一台 Ubuntu Server 20.04 起來

IP:192.168.254.18

英文安裝

要記得安裝 OpenSSH Server 使用 telnet ssh 我是覺得比較方便

安裝好 Ubuntu Server 之後

telnet ip

先檢查 date 日期時間對不對

這很重要

因為時間時區不對會影響等一下的 LibreNMS 安裝

我們在台灣

sudo -s 之後

timedatectl set-timezone Asia/Taipei

之後就可以照這份文件安裝

https://docs.librenms.org/Installation/Install-LibreNMS/#install-php-dependencies

裡面說明很清楚

需要修改的部分我們說明如下

Install Required Packages

```

apt install software-properties-common

add-apt-repository universe

apt update

apt install acl curl composer fping git graphviz imagemagick mariadb-client mariadb-server mtr-tiny nginx-full nmap php7.4-cli php7.4-curl php7.4-fpm php7.4-gd php7.4-gmp php7.4-json php7.4-mbstring php7.4-mysql php7.4-snmp php7.4-xml php7.4-zip rrdtool snmp snmpd whois unzip python3-pymysql python3-dotenv python3-redis python3-setuptools python3-systemd python3-pip

```

Add librenms user

```

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

```

Download LibreNMS

```

cd /opt

git clone https://github.com/librenms/librenms.git

```

Set permissions

```

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/

```

Install PHP dependencies

```

su - librenms

./scripts/composer_wrapper.php install --no-dev

exit

```

Set timezone

```

vi /etc/php/7.4/fpm/php.ini

vi /etc/php/7.4/cli/php.ini

```

找到這一行[Date] 把時區改為 Asia/Taipei

timedatectl set-timezone Asia/Taipei

Configure MariaDB

```

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

```

Within the [mysqld] section add:

```

innodb_file_per_table=1

lower_case_table_names=0

```

存檔後退出 vi

```

systemctl enable mariadb

systemctl restart mariadb

```

執行

```

mysql -u root

```

看你要不要把 password 改掉後你要記得

```

CREATE DATABASE librenms CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;

CREATE USER 'librenms'@'localhost' IDENTIFIED BY 'password';

GRANT ALL PRIVILEGES ON librenms.* TO 'librenms'@'localhost';

FLUSH PRIVILEGES;

exit

```

Configure PHP-FPM

```

cp /etc/php/7.4/fpm/pool.d/www.conf /etc/php/7.4/fpm/pool.d/librenms.conf

vi /etc/php/7.4/fpm/pool.d/librenms.conf

```

Change [www] to [librenms]:

[librenms]

Change user and group to "librenms":

user = librenms

group = librenms

Change listen to a unique name:

listen = /run/php-fpm-librenms.sock

Configure Web Server

```

vi /etc/nginx/conf.d/librenms.conf

```

新增 librenms.conf 裡面的 server_name 改成你要的，如果不知道

直接填入 Ubuntu Server IP

```

server {

 listen      80;

 server_name 192.168.254.18;

 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 ~ [^/]\.php(/|$) {

  fastcgi_pass unix:/run/php-fpm-librenms.sock;

  fastcgi_split_path_info ^(.+\.php)(/.+)$;

  include fastcgi.conf;

 }

 location ~ /\.(?!well-known).* {

  deny all;

 }

}

```

存檔退出執行下面命令

```

rm /etc/nginx/sites-enabled/default

systemctl restart nginx

systemctl restart php7.4-fpm

```

SELinux

Allow access through firewall

因為 Ubuntu Server 安裝時就沒有打開

所以不需要調整

```

Enable lnms command completion

ln -s /opt/librenms/lnms /usr/bin/lnms

cp /opt/librenms/misc/lnms-completion.bash /etc/bash_completion.d/

```

Configure snmpd

```

cp /opt/librenms/snmpd.conf.example /etc/snmp/snmpd.conf

```

Edit the text which says RANDOMSTRINGGOESHERE and set your own community string.

編輯聯絡資訊改成你的資料

我是沒有改

```

vi /etc/snmp/snmpd.conf

```

退出 vi 後執行

```

curl -o /usr/bin/distro https://raw.githubusercontent.com/librenms/librenms-agent/master/snmp/distro

chmod +x /usr/bin/distro

systemctl enable snmpd

systemctl restart snmpd

```

Cron job

```

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

```

Copy logrotate config

```

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

```

Web installer

http://192.168.254.18/install

跑完由左到右四個項次就完成了

之後輸入

http://192.168.254.18/

打完帳號密碼就可以登入了

右邊車輪旁邊的人頭

點 My Setting 

Preferences

Language

就可以把它改為節省哥JSJSS的繁體中文版本了

以上