1. 安裝需要的套件

    yum install epel-release
    rpm -Uvh https://mirror.webtatic.com/yum/el7/webtatic-release.rpm
    yum install composer cronie fping git ImageMagick jwhois mariadb mariadb-server mtr python36 MySQL-python net-snmp net-snmp-utils nginx nmap php72w php72w-cli php72w-common php72w-curl php72w-fpm php72w-gd php72w-mbstring php72w-mysqlnd php72w-process php72w-snmp php72w-xml php72w-zip python-memcached rrdtool

  2. 建立 librenms 用戶

    useradd librenms -d /opt/librenms -M -r
    usermod -a -G librenms nginx
    sync;sync;sync;reboot

  3. 下載 LibreNMS

    cd /opt
    composer create-project --no-dev --keep-vcs librenms/librenms librenms dev-master

  4. 出現異常與警告訊息, 重新開機後再執行

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

  5. 建立 DB Server

    systemctl start mariadb
    mysql -u root

    password 要依照自己需要設定

    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/my.cnf
    [mysqld]
    datadir=/var/lib/mysql
    :
    :
    # instructions in http://fedoraproject.org/wiki/Systemd
    innodb_file_per_table=1
    sql-mode=""
    lower_case_table_names=0
    :
    systemctl enable mariadb
    systemctl restart mariadb
  6. 建立 Web Server

    vi /etc/php-fpm.d/www.conf

    :
    ;user = apache
    user = nginx
    ; RPM: Keep a group allowed to write in log dir.
    group = apache
    
    ; The address on which to accept FastCGI requests.
    ; Valid syntaxes are:
    ;   'ip.add.re.ss:port'    - to listen on a TCP socket to a specific IPv4 address on
    ;                            a specific port;
    ;   '[ip:6:addr:ess]:port' - to listen on a TCP socket to a specific IPv6 address on
    ;                            a specific port;
    ;   'port'                 - to listen on a TCP socket to all addresses
    ;                            (IPv6 and IPv4-mapped) on a specific port;
    ;   '/path/to/unix/socket' - to listen on a unix socket.
    ; Note: This value is mandatory.
    ;listen = 127.0.0.1:9000
    listen = /var/run/php-fpm/php7.2-fpm.sock
    
    ; Set listen(2) backlog.
    ; Default Value: 511 (-1 on FreeBSD and OpenBSD)
    ;listen.backlog = 511
    
    ; Set permissions for unix socket, if one is used. In Linux, read/write
    ; permissions must be set in order to allow connections from a web server. Many
    ; BSD-derived systems allow connections regardless of permissions.
    ; Default Values: user and group are set as the running user
    ;                 mode is set to 0660
    ;listen.owner = nobody
    ;listen.group = nobody
    ;listen.mode = 0660
    listen.owner = nginx
    listen.group = nginx
    listen.mode = 0660
    
    ; When POSIX Access Control Lists are supported you can set them using
    ; these options, value is a comma separated list of user/group names.
    :
    systemctl enable php-fpm
    systemctl restart php-fpm
  7. 設定 nginx

    vi /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-fpm/php7.2-fpm.sock;
     }
     location ~ /\.ht {
      deny all;
     }
    }
    systemctl enable nginx
    systemctl restart nginx
  8. 建立 SELinux 與 Allow fping

    yum install policycoreutils-python
    
    semanage fcontext -a -t httpd_sys_content_t '/opt/librenms/logs(/.*)?'
    semanage fcontext -a -t httpd_sys_rw_content_t '/opt/librenms/logs(/.*)?'
    restorecon -RFvv /opt/librenms/logs/
    semanage fcontext -a -t httpd_sys_content_t '/opt/librenms/rrd(/.*)?'
    semanage fcontext -a -t httpd_sys_rw_content_t '/opt/librenms/rrd(/.*)?'
    restorecon -RFvv /opt/librenms/rrd/
    semanage fcontext -a -t httpd_sys_content_t '/opt/librenms/storage(/.*)?'
    semanage fcontext -a -t httpd_sys_rw_content_t '/opt/librenms/storage(/.*)?'
    restorecon -RFvv /opt/librenms/storage/
    semanage fcontext -a -t httpd_sys_content_t '/opt/librenms/bootstrap/cache(/.*)?'
    semanage fcontext -a -t httpd_sys_rw_content_t '/opt/librenms/bootstrap/cache(/.*)?'
    restorecon -RFvv /opt/librenms/bootstrap/cache/
    setsebool -P httpd_can_sendmail=1
    setsebool -P httpd_execmem 1
    
    vi /tmp/http_fping.tt

    module http_fping 1.0;
    
    require {
    type httpd_t;
    class capability net_raw;
    class rawip_socket { getopt create setopt write read };
    }
    
    #============= httpd_t ==============
    allow httpd_t self:capability net_raw;
    allow httpd_t self:rawip_socket { getopt create setopt write read };
    checkmodule -M -m -o http_fping.mod /tmp/http_fping.tt
    semodule_package -o /tmp/http_fping.pp -m http_fping.mod
    semodule -i /tmp/http_fping.pp
  9. 設定 firewall

    firewall-cmd --zone public --add-service http
    firewall-cmd --permanent --zone public --add-service http
    firewall-cmd --zone public --add-service https
    firewall-cmd --permanent --zone public --add-service https

  10. 設定 snmpd

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

    將 RANDOMSTRINGGOESHERE 改成你要的 community 字串

    # Change RANDOMSTRINGGOESHERE to your preferred SNMP community string
    #com2sec readonly  default         RANDOMSTRINGGOESHERE
    com2sec readonly  default         **community_string**
    :
    #syslocation Rack, Room, Building, City, Country [GPSX,Y]
    syslocation Taipei, Taiwan
    #syscontact Your Name <[email protected]>
    syscontact Jonathan Tsai <[email protected]>
    :
    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
  11. 定義 cron table

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

  12. 設定定時清 log

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

  13. 設定權限

    chown -R librenms:librenms /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/

  14. 至網頁介面進行安裝 網址 Exp. http://192.168.11.200/install.php
    1. 如果這時候無法出現安裝畫面, 表示 nginx default 設定沒有移除

      vi /etc/nginx/nginx.conf

      :
          include             /etc/nginx/mime.types;
          default_type        application/octet-stream;
      
          # Load modular configuration files from the /etc/nginx/conf.d directory.
          # See http://nginx.org/en/docs/ngx_core_module.html#include
          # for more information.
          include /etc/nginx/conf.d/*.conf;
      
      #    server {
      #        listen       80 default_server;
      #        listen       [::]:80 default_server;
      #        server_name  _;
      #        root         /usr/share/nginx/html;
      #
      #        # Load configuration files for the default server block.
      #        include /etc/nginx/default.d/*.conf;
      #
      #        location / {
      #        }
      #
      #        error_page 404 /404.html;
      #            location = /40x.html {
      #        }
      #
      #        error_page 500 502 503 504 /50x.html;
      #            location = /50x.html {
      #        }
      #    }
      
      # Settings for a TLS enabled server.
      #
      #    server {
      :
      systemctl restart nginx
    2. 依照網頁出現的 6 個 Stage 執行
    3. Stage 5 將產生的設定參數資料手動寫入 /opt/librenms/config.php

      vi /opt/librenms/config.php

    4. 調整參數檔案權限

      chown librenms:librenms /opt/librenms/config.php

  15. 再來應該就可以透過網頁依照上一步驟建立的帳號登入
  • tech/librenms/centos7.txt
  • 上一次變更: 2021/06/14 16:01
  • jonathan