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  • CentOS 6.2+Nginx+Nagios,手机短信和qq邮箱提醒

    http://chenhao6.blog.51cto.com/6228054/1323192


    标签：软件包 配置文件 nagios 服务端 监控
    原创作品，允许转载，转载时请务必以超链接形式标明文章 原始出处 、作者信息和本声明。否则将追究法律责任。http://chenhao6.blog.51cto.com/6228054/1323192

    CentOS 6.2+Nginx+Nagios,手机短信和qq邮箱提醒


    注：192.168.0.21 服务端

    192.168.0.22 客户端

    环境：两台centos6.0 64位系统，都已经搭建好了源码的lnmp平台

    结尾附上所需的软件包


    1.nagios安装（中文版）

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    tar xvf nagios-cn-3.2.3.tar.bz2
    cd nagios-cn-3.2.3
    useradd -m -s /bin/bash nagios
    usermod -a -G nagcmd nagios
    ./configure --prefix=/usr/local/nagios --with-command-group=nagcmd
    make
    make all
    make install
    make install-init     # 生成init启动脚本
    make install-config     # 安装示例配置文件
    make install-commandmode     # 设置相应的目录权限
    chmod o+rwx /usr/local/nagios/var/rw

    2.nagios-plugins安装

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    wget http://prdownloads.sourceforge.net/sourceforge/nagiosplug/nagios-plugins
    tar zxvf nagios-plugins-1.4.16.tar.gz
    cd nagios-plugins-1.4.16
    yum install make apr* autoconf automake curl curl-devel gcc gcc-c++ zlib-devel
    openssl openssl-devel pcre-devel gd gd-devel kernel keyutils patch perl perl-devel
    kernel keyutils kernel-headers compat* mpfr cpp glibc libgomp libstdc++-devel ppl
    cloog-ppl keyutils-libs-devel libcom_err-devel libsepol-devel libselinux-devel
    krb5-devel zlib-devel libXpm* freetype libjpeg* libpng* php-common php-gd ncurses* libtool* libxml2 libxml2-devel patch -y
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    ./configure --prefix=/usr/local/nagios --with-mysql=/home/mysql/
    make
    make install


    3.nrpe安装

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    tar xzvf nrpe-2.12.tar.gz
    cd nrpe-2.12
    ./configure
    make
    ./configure
    make all
    make install-plugin
    make install-daemon
    make install-daemon-config
    cp src/check_nrpe /usr/local/nagios/libexec/
    /usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d
    echo '/usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d' >> /etc/rc.local
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    要重启nrpe进行就先杀掉进行，然后重启
    kill `ps aux |grep nrpe |grep -v grep |awk '{print $2}'`
    /usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d
    本机测试下：
    /usr/local/nagios/libexec/check_nrpe -H localhost -c check_users


    加入系统服务

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    加入系统服务并设为开机自动
    chkconfig --add nagios
    chkconfig nagios on
    chown nagios.nagios /usr/local/nagios/var/rw
    # 测试配置文件是否正确
    /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg


    添加别名命令，方便测试配置文件

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    vi ~/.bashrc
    在里面用alias 来自定义一个命令来代替，这里我用check
    alias check='/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg'
    source ~/.bashrc
    此时可以用check命令来检测配置文件了


    修改联系人邮箱，修改为用于报警接收的邮件地址

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    vi /usr/local/nagios/etc/objects/contacts.cfg
    ###############################################################################
    # CONTACTS.CFG - SAMPLE CONTACT/CONTACTGROUP DEFINITIONS
    #
    # Last Modified: 05-31-2007
    #
    # NOTES: This config file provides you with some example contact and contact
    #        group definitions that you can reference in host and service
    #        definitions.
    #
    #        You don't need to keep these definitions in a separate file from your
    #        other object definitions.  This has been done just to make things
    #        easier to understand.
    #
    ###############################################################################
    ###############################################################################
    ###############################################################################
    #
    # CONTACTS
    #
    ###############################################################################
    ###############################################################################
    # Just one contact defined by default - the Nagios admin (that's you)
    # This contact definition inherits a lot of default values from the 'generic-contact'
    # template which is defined elsewhere.
    define contact{
            contact_name                    nagiosadmin             ; Short name of user
            use                             generic-contact         ; Inherit default values from generic-contact template (defined above)
            alias                           Nagios Admin            ; Full name of user
            email                           nagios@localhost        ; <<***** CHANGE THIS TO YOUR EMAIL ADDRESS ******
            }
    ###############################################################################
    ###############################################################################
    #
    # CONTACT GROUPS
    #
    ###############################################################################
    ###############################################################################
    # We only have one contact in this simple configuration file, so there is
    # no need to create more than one contact group.
    define contactgroup{
            contactgroup_name       admins
            alias                   Nagios Administrators
            members                 nagiosadmin
            }
    定义check_nrpe命令
    vi /usr/local/nagios/etc/objects/commands.cfg
    define command{
    command_name check_nrpe
    command_line /usr/local/nagios/libexec/check_nrpe -H $HOSTADDRESS$ -c $ARG1$
    }

    检测配置文件是否有误

    check

    134820361.jpg

    134910903.jpg

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    nginx 配置，Nginx fastcgi perl (pl、cgi)支持
    安装FCGI模块
    cd
    tar zxvf FCGI-0.70.tar.gz
    cd FCGI-0.70
    perl Makefile.PL
    make
    make install
    cd
    安装 IO 和 IO::ALL模块
    tar zxvf IO-1.25.tar.gz
    cd IO-1.25
    perl Makefile.PL
    make
    make install
    cd
    tar zxvf IO-All-0.41.tar.gz
    cd IO-All-0.41
    perl Makefile.PL
    make
    make install
    cd
    unzip perl-fcgi.zip
    cp perl-fcgi.pl /usr/local/nginx/
    chmod 755 /usr/local/nginx/perl-fcgi.pl


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    vi /usr/local/nginx/start_perl_cgi.sh
    #!/bin/bash
    #set -x
    dir=/usr/local/nginx/
    stop ()
    {
    #pkill  -f  $dir/perl-fcgi.pl
    kill $(cat $dir/logs/perl-fcgi.pid)
    rm $dir/logs/perl-fcgi.pid 2>/dev/null
    rm $dir/logs/perl-fcgi.sock 2>/dev/null
    echo "stop perl-fcgi done"
    }
    start ()
    {
    rm $dir/now_start_perl_fcgi.sh 2>/dev/null
    chown nobody.root $dir/logs
    echo "$dir/perl-fcgi.pl -l $dir/logs/perl-fcgi.log -pid $dir/logs/perl-fcgi.pid -S $dir/logs/perl-fcgi.sock" >>$dir/now_start_perl_fcgi.sh
    chown nobody.nobody $dir/now_start_perl_fcgi.sh
    chmod u+x $dir/now_start_perl_fcgi.sh
    sudo -u nobody $dir/now_start_perl_fcgi.sh
    echo "start perl-fcgi done"
    }
    case $1 in
    stop)
    stop
    ;;
    start)
    start
    ;;
    restart)
    stop
    start
    ;;
    esac


    把start_perl_cgi.sh文件中的nobody全部用nagios替换，nginx 目录上的用户

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    sed -i 's@nobody@nagios@g' /usr/local/nginx/start_perl_cgi.sh
    chmod 755 /usr/local/nginx/start_perl_cgi.sh
    /usr/local/nginx/start_perl_cgi.sh start

    135456830.jpg

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    # 取消用户认证(方便调试)
    vi /usr/local/nagios/etc/cgi.cfg
    找到use_authentication=1并把值改为0
    修改联系人邮箱，修改为用于报警接收的邮件地址
    vi /usr/local/nagios/etc/objects/contacts.cfg

    135458347.jpg


    135505944.jpg

    到这一步就是正常的

    下面nginx 配置

    我把监听改成80的了

    135508550.jpg

    然后开启服务

    就可以访问了，然后继续安装客户端，最后给大家截图看效果

    service nagios start


    nagios被控端安装

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    yum install openssl-devel -y
    1. nagios-plugins安装
    groupadd nagios
    useradd nagios -M -s /sbin/nologin -g nagios
    tar xvf nagios-plugins-1.4.16.tar.gz
    cd nagios-plugins-1.4.16
    ./configure --prefix=/usr/local/nagios --with-nagios-user=nagios --with-nagios-gourp=nagios --with-mysql=/usr/local/mysql && make && make install
    cd
    2. nrpe安装
    tar zxvf nrpe-2.13.tar.gz
    cd nrpe-2.13
    ./configure
    make all
    make install-plugin
    make install-daemon
    make install-daemon-config

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    启动nrpe
    /usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d
    echo '/usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d' >> /etc/rc.local


    监控服务端本机：自己监控自己不需要配置nrpe，服务端的nrpe只用于获取客户端的nrpe传送过来的数据，在这里因为中文版的nagios已经默认有些配置，等会儿修改下直接用了

    监控客户端：监控的服务有：mysql、nginx、memory、ip连接数、僵死的进程、磁盘空间、磁盘IO、登录用户数、进程总数、cpu负载、PING、SSH

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    unzip libexec.zip
    cp libexec/* /usr/local/nagios/libexec
    chmod -R +x /usr/local/nagios/libexec

    装插件

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    创建一个空的数据库nagios，授权nagios这个用户从任何地方访问nagios这个数据库，刷新授权设置，查询下nagios这个用户是否创建成功
    create database nagios;
    grant select on nagios.* to nagios @'%' identified by '123456';
    flush privileges;
    select User,Password,Host from mysql.user;


    135951346.jpg

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    添加mysql库到系统搜索库
    vim /etc/ld.so.conf
    /usr/local/mysql/lib
    ldconfig
    要监控磁盘io，还得安装sysstat这个工具包
    yum install sysstat -y
    配置客户端上面的nrpe
    vim /usr/local/nagios/etc/nrpe.cfg

    135954212.jpg


    135958970.jpg

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    140003554.jpg

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    配置客户端上面的nrpe
    vim /usr/local/nagios/etc/nrpe.cfg
    command[check_users]=/usr/local/nagios/libexec/check_users -w 5 -c 10
    command[check_load]=/usr/local/nagios/libexec/check_cpu.sh -w 80% -c 90%
    command[check_sda1]=/usr/local/nagios/libexec/check_disk -w 20% -c 10% -p /dev/sda1
    command[check_sda2]=/usr/local/nagios/libexec/check_disk -w 20% -c 10% -p /dev/sda2
    command[check_zombie_procs]=/usr/local/nagios/libexec/check_procs -w 5 -c 10 -s Z
    command[check_total_procs]=/usr/local/nagios/libexec/check_procs -w 150 -c 200
    command[check_swap]=/usr/local/nagios/libexec/check_swap -w 20% -c 10%
    command[check_iostat]=/usr/local/nagios/libexec/check_iostat.sh -d sda -w 6 -c 10
    command[check_mysql]=/usr/local/nagios/libexec/check_mysql -H 192.168.0.22 -u nagios -p 123456 -d nagios
    command[check_nginx]=/usr/local/nagios/libexec/check_nginx.sh -u 192.168.0.22 -p /status -w 4000 -c 5000
    command[check_mem]=/usr/local/nagios/libexec/check_memory.pl -f -w 20 -c 10
    command[check_ip_conn]=/usr/local/nagios/libexec/ip_conn.sh 200 250
    command[check_ssh]=/usr/local/nagios/libexec/check_tcp -p 22 -w 1.0 -c 10.0
    配置完成后，重启nrpe
    kill `ps aux |grep nrpe |grep -v grep |awk '{print $2}'`
    /usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d
    服务端配置：
    监控服务端本机的配置：
    vim /usr/local/nagios/etc/objects/localhost.cfg
    修改里面的配置，最后修改完成的配置如下
    define host{
            use                     linux-server
            host_name               localhost
            alias                   localhost
            address                 127.0.0.1
            icon_image              server.gif
            statusmap_image         server.gd2
        2d_coords       500,200
        3d_coords       500,200,100
            }
    define hostgroup{
            hostgroup_name  linux-servers ; The name of the hostgroup
            alias           Linux Servers ; Long name of the group
            members         *     ; Comma separated list of hosts that belong to this group
            }
    define servicegroup{
    servicegroup_name 全部联通性检查
    alias 联通性检查
              members localhost,PING,nagios-client,PING
              }
    define service{
            use                             local-service         ; Name of service template to use
            host_name                       *
            service_description             PING
               check_command            check_ping!100.0,20%!500.0,60%
            }
    define service{
            use                             local-service         ; Name of service template to use
            host_name                       localhost
            service_description             根分区
               check_command            check_local_disk!20%!10%!/
            }
    define service{
            use                             local-service         ; Name of service template to use
            host_name                       localhost
            service_description             登录用户数
               check_command            check_local_users!20!50
            }
    define service{
            use                             local-service         ; Name of service template to use
            host_name                       localhost
            service_description             进程总数
               check_command            check_local_procs!250!400!RSZDT
            }
    define service{
            use                             local-service         ; Name of service template to use
            host_name                       localhost
            service_description             系统负荷
               check_command            check_local_load!5.0,4.0,3.0!10.0,6.0,4.0
            }
    define service{
            use                             local-service         ; Name of service template to use
            host_name                       localhost
            service_description             交换空间利用率
               check_command            check_local_swap!20!10
            }
    define service{
            use                             local-service         ; Name of service template to use
            host_name                       localhost
            service_description             SSH
               check_command            check_tcp!22!1.0!10.0
               notifications_enabled        0
            }
    服务器监控客户端的配置：
    保存退出后复制这个文件一份，作为nagios-client的监控模版文件
    cp /usr/local/nagios/etc/objects/localhost.cfg /usr/local/nagios/etc/objects/nagios-client.cfg
    vim /usr/local/nagios/etc/objects/nagios-client.cfg   修改完成后的配置如下
    define host{
            use                     linux-server
            host_name               nagios-client
            alias                   nagios-client
            address                 192.168.0.22
            icon_image              server.gif
            statusmap_image         server.gd2
            2d_coords       500,200
            3d_coords       500,200,100
            }
    define service{
            use                             local-service         ; Name of service template to use
            host_name                       *
            service_description             PING
            check_command           check_ping!100.0,20%!500.0,60%
            }
    define service{
            use                             local-service         ; Name of service template to use
            host_name                       nagios-client
            service_description             boot分区
            check_command           check_nrpe!check_sda1
            }
    define service{
            use                             local-service         ; Name of service template to use
            host_name                       nagios-client
            service_description             根分区
            check_command           check_nrpe!check_sda2
            }
    define service{
            use                             local-service         ; Name of service template to use
            host_name                       nagios-client
            service_description             登录用户数
            check_command           check_nrpe!check_users
            }
    define service{
            use                             local-service         ; Name of service template to use
            host_name                       nagios-client
            service_description             进总程数
            check_command           check_nrpe!check_total_procs
            }
    define service{
            use                             local-service         ; Name of service template to use
            host_name                       nagios-client
            service_description             CPU平均负载
            check_command           check_nrpe!check_load
            }
    define service{
            use                             local-service         ; Name of service template to use
            host_name                       nagios-client
            service_description             虚拟内存
            check_command           check_nrpe!check_swap
            }
    define service{
            use                             local-service         ; Name of service template to use
            host_name                       nagios-client
            service_description             SSH
            check_command           check_nrpe!check_ssh
            notifications_enabled       0
            }
    define service{
            use                             local-service         ; Name of service template to use
            host_name                       nagios-client
            service_description             僵死进程数
            check_command           check_nrpe!check_zombie_procs
            }
    define service{
            use                             local-service         ; Name of service template to use
            host_name                       nagios-client
            service_description             iostat
            check_command           check_nrpe!check_iostat
            }
    define service{
            use                             local-service         ; Name of service template to use
            host_name                       nagios-client
            service_description             mysql
            check_command           check_nrpe!check_mysql
            }
    define service{
            use                             local-service         ; Name of service template to use
            host_name                       nagios-client
            service_description             nginx
            check_command           check_nrpe!check_nginx
            }
    define service{
            use                             local-service         ; Name of service template to use
            host_name                       nagios-client
            service_description             memory
            check_command           check_nrpe!check_mem
            }
    define service{
            use                             local-service         ; Name of service template to use
            host_name                       nagios-client
            service_description             IP连接数
            check_command           check_nrpe!check_ip_conn
            }

    142017582.jpg

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    直接把原来的邮件报警的两条命令中的/bin/mail修改为/usr/bin/mutt即可，如下图
                                                                                
    加快nagios的报警时间设置:
    1.修改模版文件：
    vim /usr/local/nagios/etc/objects/templates.cfg
    修改所有normal_check_interval项的值为1，既发现故障后1分钟就报警
    修改所有check_interval项的值为1，即正常情况下每分钟检查一次
    修改所有notification_interval  的值为20分钟         #在主机出现异常后，故障一直没有解决，nagios再次对使用者发出通知的时间
    service nagios restart    重启nagios

    140904939.jpg

    140015518.jpg


    140936638.jpg

    140940246.jpg

    140945505.jpg


    140953384.jpg

    140956156.jpg

    140958984.jpg

    141001706.jpg

    141003226.jpg

    141005148.jpg

    141007150.jpg

    141009367.jpg

    141012872.jpg

    141014584.jpg

    141018987.jpg


    测试告警：

    141501863.jpg

    141421804.jpg

    141427598.jpg

    试验完成！

    附上软件包所需软件地址

    缺的软件可以直接找我要！

    http://down.51cto.com/data/1007210


    本文出自 “浩子的▁运维笔录ヽ” 博客，请务必保留此出处http://chenhao6.blog.51cto.com/6228054/1323192
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  • 原文地址：https://www.cnblogs.com/dingxiaoyue/p/4926806.html
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