Ubuntu 20.04 install librenms

 Ubuntu 20.04 install librenms

由於CentOS8 變成孤兒了，故著手把手頭的CentOS 上的版本做轉移

沒想到越做越越多問號，讓人不經懷疑網站上的編寫者有沒有實際自己跑過一遍XDDDD

由於花了不少時間解問題，就把筆記更新放著了

apt install software-properties-common

add-apt-repository universe

apt update

apt upgrade

官站上的教學

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-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

問題來了

在套件中 php預設會抓取認識php-curl而非 php7.4-curl

所以要裝 php-curl

建立帳戶

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

cd /opt

#恩 會出現錯誤 git gnutls_handshake() failed 

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

#查詢原因大致上是說明套件錯誤，但不管是停用改設定為Tls v1.2或是重包套件都沒過

#沒關係，山不轉路轉，改啟用ssl

1. 建立主機ssh-keygen

#ssh-keygen

2. cat ~/.ssh/id_rsa.pub

將公鑰複製下來大概長這樣

ssh-rsa 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 root@librenms

3. 登入git 帳號(沒有自己去建一個吧，很方便的)

Account settings到SSH and GPG keys選項>New SSH key>貼上

然後回到主機上

cd /opt

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

會詢問是否接受，輸入yes點enter吧!

再來就回歸正途

設定資料夾權限

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/

#PHP pre-install

su - librenms

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

exit

設定PHP Timezone

先確認自己的 timedatectl

Asia/Taipei

===

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

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

===

 變更主機時區(台北)

sudo timedatectl set-timezone Asia/Taipei

Configure MariaDB

#編輯設定

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

在[mysqld] 底下加入

innodb_file_per_table=1

lower_case_table_names=0

開啟並重啟服務

systemctl enable mariadb

systemctl restart mariadb

建立資料庫與設定 librenma帳密

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

設定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

更改設定

將[www] 替換 [librenms]:

以下替換

user = librenms

group = librenms

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

設定nginx

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

直接貼上

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 ~ [^/]\.php(/|$) {

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

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

  include fastcgi.conf;

 }

 location ~ /\.(?!well-known).* {

  deny all;

 }

}

移除預設設定與啟動

rm /etc/nginx/sites-enabled/default

systemctl restart nginx

systemctl restart php7.4-fpm

SELinux

Ubuntu 預設未啟用(Cen

Configure snmpd

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

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

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