开源监控LibreNMS:全功能网络监控

╰+哭是因爲堅強的太久メ 2022-10-24 11:49 824阅读 0赞

# 一、LibreNMS简单介绍 #

LibreNMS是一个功能齐全的开源网络监控系统，它使用SNMP来获取来自不同设备的数据，LibreNMS支持各种设备如Cisco Linux FreeBSD Juniper Brocade Foundry HP等，它支持多种身份验证机制，并支持双因素身份验证。它有一个可定制的警报系统，可以通过电子邮件，IRC或slack通知网络管理员。

# 二、LibreNMS特点： #

1、它使用这些协议自动发现整个网络：CDP，FDP，LLDP，OSPF，BGP，SNMP和ARP。  
2、它有一个移动友好的Web UI，可定制的仪表板。  
3、支持一个Unix代理。  
4、支持水平缩放以随网络扩展。  
5、支持高度灵活和可定制的警报系统; 通过电子邮件，irc，slack等发送通知。  
6、支持用于管理，绘制和检索系统数据的API。  
7、提供流量计费系统。  
8、还支持提供核心功能的Android和iOS应用程序。  
9、支持与NfSen，collectd，SmokePing，RANCID和Oxidized的集成。  
10、支持多种身份验证方法，例如MySQL，HTTP，LDAP，Radius和Active Directory。  
11、允许自动更新和许多其他功能。

在Linux系统上安装LibreNMS之前，您可以尝试在线演示。

Demo URL: https://demo.librenms.org/
    Username: demo
    Password: demo

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# 三、CentOS7下部署LibreNMS #

1.关闭selinux  
查看状态

#getenforce
    #/usr/sbin/sestatus

![在这里插入图片描述][20210129141701734.png]  
关闭SeLinux

###临时关闭
    #setenforce 0

修改/etc/selinux/config  
![在这里插入图片描述][20210129141724686.png]  
2、配置yum源

[root@localhost /]# wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-7.repo
    [root@localhost /]# sed -i -e '/mirrors.cloud.aliyuncs.com/d' -e '/mirrors.aliyuncs.com/d' /etc/yum.repos.d/CentOS-Base.repo
    [root@localhost /]# wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo
    [root@localhost /]# yum clean all
    [root@localhost /]# yum makecache

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwOTA3OTc3_size_16_color_FFFFFF_t_70 1]  
3、配置remi-php73源，安装LibreNMS所需的组件

[root@localhost /]# yum install -y yum-utils
    [root@localhost /]# yum localinstall http://rpms.remirepo.net/enterprise/remi-release-7.rpm -y
    [root@localhost /]# yum-config-manager --enable remi-php73 
    [root@localhost /]# yum install composer cronie fping git ImageMagick jwhois mariadb mariadb-server mtr MySQL-python net-snmp net-snmp-utils nginx nmap php-fpm php-cli php-common php-curl php-gd php-mbstring php-process php-snmp php-xml php-zip php-memcached php-mysqlnd python-memcached rrdtool python3 python3-pip python3-devel -y
    [root@localhost /]# yum install -y zip unzip

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwOTA3OTc3_size_16_color_FFFFFF_t_70 2]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwOTA3OTc3_size_16_color_FFFFFF_t_70 3]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwOTA3OTc3_size_16_color_FFFFFF_t_70 4]  
![在这里插入图片描述][20210129141909279.png]  
4.git下载lirenms最新版本

[root@localhost /]# cd /opt/
    [root@localhost /]#  git clone https://github.com/librenms/librenms.git
    [root@localhost /]# useradd librenms -d /opt/librenms -M -r
    [root@localhost /]# usermod -a -G librenms nginx
    [root@localhost /]# chown -R librenms:librenms /opt/librenms
    [root@localhost /]# chmod 770 /opt/librenms
    [root@localhost /]# chgrp apache /var/lib/php/session/

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwOTA3OTc3_size_16_color_FFFFFF_t_70 5]  
5、切换到librenms用户，配置php环境

[root@localhost opt]# su - librenms
    -bash-4.2$ ./scripts/composer_wrapper.php install --no-dev
    -bash-4.2$ exit

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwOTA3OTc3_size_16_color_FFFFFF_t_70 6]  
6、配置数据库

[root@localhost opt]# systemctl start mariadb
    [root@localhost opt]# mysqladmin -u root password 'MySQL@2021'
    [root@localhost opt]# mysql -u root -pMySQL@2021
    MariaDB [(none)]> CREATE DATABASE librenms CHARACTER SET utf8 COLLATE utf8_unicode_ci;
    MariaDB [(none)]> CREATE USER 'librenms'@'localhost' IDENTIFIED BY 'librenms@2021';
    MariaDB [(none)]> GRANT ALL PRIVILEGES ON librenms.* TO 'librenms'@'localhost';
    MariaDB [(none)]> FLUSH PRIVILEGES;
    MariaDB [(none)]> exit
    [root@localhost /]# vim /etc/my.cnf
    [mysqld]下加入如下两行
    datadir=/var/lib/mysql
    socket=/var/lib/mysql/mysql.sock
    [root@localhost /]# systemctl enable mariadb
    [root@localhost /]# systemctl restart mariadb

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwOTA3OTc3_size_16_color_FFFFFF_t_70 7]  
7、配置php环境

[root@localhost /]# vim /etc/php.ini 
    修改时区配置如下
    [Date]
    ; Defines the default timezone used by the date functions
    ; http://php.net/date.timezone
     第922行   date.timezone =Asia/Shanghai
    
    [root@localhost /]# vim /etc/php-fpm.d/www.conf 
    修改成如下行
    user = apache  换成  nginx
    group = apache   
    
    ;listen = 127.0.0.1:9000
    
    下面添加
    listen = /run/php-fpm/php-fpm.sock
    
    listen.owner = nginx
    listen.group = nginx
    listen.mode = 0660
    
    [root@localhost /]# systemctl enable php-fpm
    [root@localhost /]# systemctl restart php-fpm

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwOTA3OTc3_size_16_color_FFFFFF_t_70 8]  
8、配置nginx

[root@localhost /]# vim /etc/nginx/conf.d/librenms.conf
    
    添加
    
    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:/run/php-fpm/php-fpm.sock;
     }
     location ~ /\.ht { 
      deny all;
     }
    }
    
    [root@localhost /]# vim /etc/nginx/nginx.conf
    
    禁用
    
    #    server { 
    #        listen       443 ssl http2 default_server;
    #        listen       [::]:443 ssl http2 default_server;
    #        server_name  _;
    #        root         /usr/share/nginx/html;
    #
    #        ssl_certificate "/etc/pki/nginx/server.crt";
    #        ssl_certificate_key "/etc/pki/nginx/private/server.key";
    #        ssl_session_cache shared:SSL:1m;
    #        ssl_session_timeout  10m;
    #        ssl_ciphers HIGH:!aNULL:!MD5;
    #        ssl_prefer_server_ciphers on;
    #
    #        # Load configuration files for the default server block.
    #        include /etc/nginx/default.d/*.conf; # # location / { # } # # error_page 404 /404.html; # location = /404.html { # } [root@localhost /]# systemctl enable nginx [root@localhost /]# systemctl restart nginx

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9、snmpd配置

cp /opt/librenms/snmpd.conf.example /etc/snmp/snmpd.conf
    vi /etc/snmp/snmpd.conf中团体名，例如librenms
    com2sec readonly  default      librenms
    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

distro

#!/usr/bin/env sh
    # Detects which OS and if it is Linux then it will detect which Linux Distribution.
    
    OS=`uname -s`
    REV=`uname -r`
    MACH=`uname -m`
    
    if [ "${OS}" = "SunOS" ] ; then
      OS=Solaris
      ARCH=`uname -p`
      OSSTR="${OS} ${REV}(${ARCH} `uname -v`)"
    
    elif [ "${OS}" = "AIX" ] ; then
      OSSTR="${OS} `oslevel` (`oslevel -r`)"
    
    elif [ "${OS}" = "Linux" ] ; then
      KERNEL=`uname -r`
    
      if [ -f /etc/fedora-release ]; then
        DIST=$(cat /etc/fedora-release | awk '{print $1}')
        REV=`cat /etc/fedora-release | sed s/.*release\ // | sed s/\ .*//`
    
      elif [ -f /etc/redhat-release ] ; then
        DIST=$(cat /etc/redhat-release | awk '{print $1}')
        if [ "${DIST}" = "CentOS" ]; then
          DIST="CentOS"
          IGNORE_OS_RELEASE=1 # https://bugs.centos.org/view.php?id=8359
        elif [ "${DIST}" = "CloudLinux" ]; then
          DIST="CloudLinux"
        elif [ "${DIST}" = "Mandriva" ]; then
          DIST="Mandriva"
          PSEUDONAME=`cat /etc/mandriva-release | sed s/.*$// | sed s/$//`
          REV=`cat /etc/mandriva-release | sed s/.*release\ // | sed s/\ .*//`
        elif [ -f /etc/oracle-release ]; then
          DIST="Oracle"
        elif [ -f /etc/rockstor-release ]; then
          DIST="Rockstor"
        else
          DIST="RedHat"
        fi
    
        PSEUDONAME=`cat /etc/redhat-release | sed s/.*$// | sed s/$//`
        REV=`cat /etc/redhat-release | sed s/.*release\ // | sed s/\ .*//`
    
      elif [ -f /etc/mandrake-release ] ; then
        DIST='Mandrake'
        PSEUDONAME=`cat /etc/mandrake-release | sed s/.*$// | sed s/$//`
        REV=`cat /etc/mandrake-release | sed s/.*release\ // | sed s/\ .*//`
    
      elif [ -f /etc/devuan_version ] ; then
        DIST="Devuan `cat /etc/devuan_version`"
        REV=""
    
      elif [ -f /etc/debian_version ] ; then
        DIST="Debian `cat /etc/debian_version`"
        REV=""
        IGNORE_OS_RELEASE=1
        if [ -f /usr/bin/lsb_release ] ; then
          ID=`lsb_release -i | awk -F ':' '{print $2}' | sed 's/ //g'`
        fi
        if [ "${ID}" = "Raspbian" ] ; then
          DIST="Raspbian `cat /etc/debian_version`"
        fi
        if [ -f /usr/bin/pveversion ]; then
          DIST="${DIST}/PVE `/usr/bin/pveversion | cut -d '/' -f 2`"
        fi
        if [ -f /usr/bin/pmgversion ]; then
          # pmgversion requires root permissions to run, please add NOPASSWD setting to visudo.
          DIST="${DIST}/PMG `sudo /usr/bin/pmgversion | cut -d '/' -f 2`"
        fi
        if [ -f /etc/dogtag ]; then
          DIST=`cat /etc/dogtag`
        fi
        
      elif [ -f /etc/gentoo-release ] ; then
        DIST="Gentoo"
        REV=$(tr -d '[[:alpha:]]' " ")
    
      elif [ -f /etc/arch-release ] ; then
        DIST="Arch Linux"
        REV="" # Omit version since Arch Linux uses rolling releases
        IGNORE_LSB=1 # /etc/lsb-release would overwrite $REV with "rolling"
        
      elif [ -f /etc/photon-release ] ; then
        DIST=$(head -1 < /etc/photon-release)
        REV=$(sed -n -e 's/^.*PHOTON_BUILD_NUMBER=//p' /etc/photon-release)
        IGNORE_LSB=1 # photon os does not have /etc/lsb-release nor lsb_release
    
      elif [ -f /etc/openwrt_version ] ; then
        DIST="OpenWrt"
        REV=$(cat /etc/openwrt_version)
    
      elif [ -f /etc/pld-release ] ; then
        DIST=$(cat /etc/pld-release)
        REV=""
    
      elif [ -f /etc/SuSE-release ] ; then
        DIST=$(echo SLES $(grep VERSION /etc/SuSE-release | cut -d = -f 2 | tr -d " "))
        REV=$(echo SP$(grep PATCHLEVEL /etc/SuSE-release | cut -d = -f 2 | tr -d " "))
      fi
    
      if [ -x "$(command -v awk)" ];  then # some distros do not ship with awk
        if [ "`uname -a | awk '{print $(NF)}'`" = "DD-WRT" ] ; then
          DIST="dd-wrt"
        fi
        if [ "`uname -a | awk '{print $(NF)}'`" = "ASUSWRT-Merlin" ] ; then
          DIST="ASUSWRT-Merlin"
          REV=`nvram show | grep buildno= | egrep -o '[0-9].[0-9].[0-9]'` > /dev/null 2>&1
        fi
      fi
    
      # try standardized os version methods
      if [ -f /etc/os-release -a "${IGNORE_OS_RELEASE}" != 1 ] ; then
        . /etc/os-release
        STD_DIST="$NAME"
        STD_REV="$VERSION_ID"
      elif [ -f /etc/lsb-release -a "${IGNORE_LSB}" != 1 ] ; then
        STD_DIST=$(lsb_release -si)
        STD_REV=$(lsb_release -sr)
      fi
      if [ -n "${STD_DIST}" ]; then
        DIST="${STD_DIST}"
      fi
      if [ -n "${STD_REV}" ]; then
        REV="${STD_REV}"
      fi
    
      if [ -n "${REV}" ]; then
        OSSTR="${DIST} ${REV}"
      else
        OSSTR="${DIST}"
      fi
    
    elif [ "${OS}" = "Darwin" ] ; then
      if [ -f /usr/bin/sw_vers ] ; then
        OSSTR=`/usr/bin/sw_vers|grep -v Build|sed 's/^.*:.//'| tr "\n" ' '`
      fi
    
    elif [ "${OS}" = "FreeBSD" ] ; then
      if [ -f /etc/version ] ; then
        DIST=$(cat /etc/version | cut -d'-' -f 1)
        if [ "${DIST}" = "FreeNAS" ]; then
          OSSTR=`cat /etc/version | cut -d' ' -f 1`
        fi
      else
        OSSTR=`/usr/bin/uname -mior`
      fi
    fi
    
    echo ${ OSSTR}

![在这里插入图片描述][20210129142134698.png]  
10、crond配置与logrotated配置

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

![在这里插入图片描述][20210129142150632.png]  
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参考连接 ：  
https://mp.weixin.qq.com/s/wu0B3gFCcCJFufoVQJGvww

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