nagios部署+短信和邮件报警

操作系统 CentOS6.6

服务端：10.0.0.20

客户端：10.0.0.50

一.nagios的服务端安装部署

1.nagios安装

[root@manager src]# rz
rz waiting to receive.
Starting zmodem transfer. Press Ctrl+C to cancel.
Transferring nagios-cn-3.2.3.tar.bz2...
100% 9412 KB 9412 KB/sec 00:00:01 0 Errors

tar xf nagios-cn-3.2..tar.bz2 
cd nagios-cn-3.2.3
useradd -m -s /bin/bash nagios
groupadd nagcmd

make install; make install-init;make install-commandmode;make install-config;make install-webconf
ll /usr/local/nagios/ #出现以下文件代表成功

drwxrwxr-x 2 nagios nagios 4096 Mar 12 08:08 bin
drwxrwxr-x 3 nagios nagios 4096 Mar 12 08:08 etc
drwxrwxr-x 2 nagios nagios 4096 Mar 12 08:08 libexec
drwxrwxr-x 2 nagios nagios 4096 Mar 12 08:08 sbin
drwxrwxr-x 9 nagios nagios 4096 Mar 12 08:08 share
drwxrwxr-x 6 nagios nagios 4096 Mar 12 08:08 var

chmod o+rwx /usr/local/nagios/var/rw

2.nagios plugin 插件安装

[root@manager src]# rz

rz waiting to receive.

Starting zmodem transfer.  Press Ctrl+C to cancel.

Transferring nagios-plugins-1.4..tar.gz...

  %     KB     KB/sec    ::        Errors

[root@manager src]# tar xf nagios-plugins-1.4..tar.gz

[root@manager src]# cd nagios-plugins-1.4.13

#安装依赖

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

./configure --prefix=/usr/local/nagios --with-mysql=/usr/local/mysql/

make

make install

file /usr/lib64/libxcb-reply.so.1.0.0 from install of compat-xcb-util-0.4.0-2.2.el6.x86_64 conflicts with file from package xcb-util-0.3.6-5.el6.x86_64

有冲突卸载掉这个有冲突的

yum remove -y xcb-util-0.3.-.el6.x86_64

3.nrpe安装

[root@manager src]# rz

rz waiting to receive.

Starting zmodem transfer.  Press Ctrl+C to cancel.

Transferring nrpe-2.12.tar.gz...

  %      KB      KB/sec    ::        Errors

tar xf 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

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

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

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

安装 nginx 的FCGI模块

  cd /usr/local/src/

  rz

  tar xf FCGI-0.74.tar.gz

  cd FCGI-0.74

  perl Makefile.PL

  make && make install

安装IO 和IO-ALL模块

[root@manager src]# tar xf IO-1.25.tar.gz

[root@manager src]# cd IO-1.25

[root@manager IO-1.25]# perl Makefile.PL
[root@manager IO-1.25]# make && make install

[root@manager src]# tar xf IO-All-0.81.tar.gz
[root@manager src]# cd IO-All-0.81
[root@manager IO-All-0.81]# perl Makefile.PL

[root@manager IO-All-0.81]# make && make install

上传fastcgi 的启动脚本。

[root@manager src]# rz
rz waiting to receive.
Starting zmodem transfer. Press Ctrl+C to cancel.
Transferring perl-fcgi.zip...
100% 2 KB 2 KB/sec 00:00:01 0 Errors

[root@manager src]# unzip perl-fcgi.zip
Archive: perl-fcgi.zip
inflating: perl-fcgi.pl
[root@manager src]# cp perl-fcgi.pl /usr/local/nginx/

[root@manager IO-All-0.81]# chmod 755 /usr/local/nginx/perl-fcgi.pl

[root@manager nginx]# ./start_perl_cgi.sh start
start perl-fcgi done

[root@manager ~]# cat /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 >/dev/null

rm $dir/logs/perl-fcgi.sock >/dev/null

echo "stop perl-fcgi done"

}

start ()

{

rm $dir/now_start_perl_fcgi.sh >/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 $ in

stop)

stop

;;

start)

start

;;

restart)

stop

start

;;

esac

启动fastcgi

[root@manager nginx]# ./start_perl_cgi.sh start
start perl-fcgi done

# 重复启动会报这样的错使用行参restart 或者stop 以后再start 就不会报这样的错。

[root@manager nginx]# ./start_perl_cgi.sh start

ERROR PID file /usr/local/nginx/logs/perl-fcgi.pid already exists

start perl-fcgi done

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

[root@manager ~]# sed -i 's#nobody#nagios#g' /usr/local/nginx/start_perl_cgi.sh

[root@manager ~]# ps -ef |grep nagios

nagios              : ?        :: /usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d

nagios              : ?        :: /usr/local/nagios/bin/nagios -d /usr/local/nagios/etc/nagios.cfg

# 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

email   13311802282@163.com (默认是nagios@localhost换成自己的邮箱)

产生这样一个socket文件表示启动成功了

[root@manager nginx]#  /etc/init.d/nagios start

Starting nagios: done.

二，nagios的被监控端安装部署

1.安装nagios插件

[root@master ~]# groupadd nagios

[root@master ~]# useradd nagios -M -s /sbin/nologin -g nagios

[root@master ~]# rz

rz waiting to receive.

Starting zmodem transfer.  Press Ctrl+C to cancel.

Transferring nagios-plugins-1.4..tar.gz...

  %     KB     KB/sec    ::        Errors  
[root@master nagios-plugins-1.4.13]# ./configure --prefix=/usr/local/nagios --with-nagios-user=nagios --with-nagios-group=nagios --with-mysql=/usr/local/mysql && make && make install

2.安装nrpe

[root@master nagios-plugins-1.4.]# cd

[root@master ~]# rz

rz waiting to receive.

Starting zmodem transfer.  Press Ctrl+C to cancel.

Transferring nrpe-2.12.tar.gz...

  %      KB      KB/sec    ::        Errors  
[root@master nrpe-2.12]# ./configure && make all && make install-plugin && make install-daemon && make install-daemon-config

[root@master nrpe-2.12]# echo $? （0未报错）
0

# 启动nrpe

[root@master nrpe-2.12]# /usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d
[root@master nrpe-2.12]# ps -ef |grep nrp
nagios 23592 1 0 09:28 ? 00:00:00 /usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d

# 设置开机启动进程

[root@master nrpe-2.12]# 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

有两个红色的不知道啥吊情况。

3.操作数据库mysql

mysql> create database nagios;

Query OK, 1 row affected (0.07 sec)

mysql> grant select on nagios.* to nagios@'%' identified by '';

Query OK, 0 rows affected (0.05 sec)

mysql> flush privileges;

Query OK, 0 rows affected (0.00 sec)

mysql> select user,password,host from mysql.user;

+--------+-------------------------------------------+-----------+

| user   | password                                  | host      |

+--------+-------------------------------------------+-----------+

| root   | *23AE809DDACAF96AF0FD78ED04B6A265E05AA257 | localhost |

| root   | *23AE809DDACAF96AF0FD78ED04B6A265E05AA257 | master    |

| root   | *23AE809DDACAF96AF0FD78ED04B6A265E05AA257 | 127.0.0.1 |

| root   | *23AE809DDACAF96AF0FD78ED04B6A265E05AA257 | ::1       |

|        |                                           | localhost |

|        |                                           | master    |

| repl   | *23AE809DDACAF96AF0FD78ED04B6A265E05AA257 | 10.0.0.%  |

| root   | *23AE809DDACAF96AF0FD78ED04B6A265E05AA257 | 10.0.0.%  |

| nagios | *23AE809DDACAF96AF0FD78ED04B6A265E05AA257 | %         |

+--------+-------------------------------------------+-----------+

9 rows in set (0.03 sec)

# 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

allowed_hosts=127.0.0.1,10.0.0.20;  #允许server主机获取信息

command[check_users]=/usr/local/nagios/libexec/check_users -w  -c

command[check_load]=/usr/local/nagios/libexec/check_load -w ,, -c ,,

#command[check_hda1]=/usr/local/nagios/libexec/check_disk -w % -c % -p /dev/hda1 （由于我的磁盘时scsii的硬盘所以不是hd是sd）

command[check_zombie_procs]=/usr/local/nagios/libexec/check_procs -w  -c  -s Z

command[check_total_procs]=/usr/local/nagios/libexec/check_procs -w  -c  

#----------------------------------下面是后加的----------------------------------------------------

command[check_sda1]=/usr/local/nagios/libexec/check_disk -w % -c % -p /dev/sda1

command[check_sda2]=/usr/local/nagios/libexec/check_disk -w % -c % -p /dev/sda2

command[check_swap]=/usr/local/nagios/libexec/check_swap -w % -c %

command[check_iostat]=/usr/local/nagios/libexec/check_iostat.sh -d sda -w  -c

command[check_mysql]=/usr/local/nagios/libexec/check_mysql -H 192.168.0.22 -u nagios -p  -d nagios

command[check_nginx]=/usr/local/nagios/libexec/check_nginx.sh -u 192.168.0.22 -p /status -w  -c

command[check_mem]=/usr/local/nagios/libexec/check_memory.pl -f -w  -c

command[check_ip_conn]=/usr/local/nagios/libexec/ip_conn.sh

command[check_ssh]=/usr/local/nagios/libexec/check_tcp -p  -w 1.0 -c 10.0

配置完重新启动进程

[root@master ~]# kill `ps aux |grep nrpe |grep -v grep |awk '{print $2}'`

[root@master ~]# /usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d

[root@master ~]# ps -ef |grep nrpe

nagios              : ?        :: /usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg -d

root             : pts/    :: grep nrpe

服务端配置：

[root@manager ~]# cp /usr/local/nagios/etc/objects/localhost.cfg /usr/local/nagios/etc/objects/localhost.cfg.bak

[root@manager ~]# > /usr/local/nagios/etc/objects/localhost.cfg

[root@manager ~]# vim /usr/local/nagios/etc/objects/localhost.cfg

#这是自己监控自己的配置文件
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       ,

    3d_coords       ,,

        }

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,%!500.0,%

        }

define service{

        use                             local-service         ; Name of service template to use

        host_name                       localhost

        service_description             根分区

           check_command            check_local_disk!%!%!/

        }

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!!

        }

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!!!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!!

        }

define service{

        use                             local-service         ; Name of service template to use

        host_name                       localhost

        service_description             SSH

           check_command            check_tcp!!1.0!10.0

           notifications_enabled

        }

服务器端监控被监控主机的配置文件：

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                 10.0.0.50

        icon_image              server.gif

        statusmap_image         server.gd2

        2d_coords       ,

        3d_coords       ,,

        }

define service{

        use                             local-service         ; Name of service template to use

        host_name                       *

        service_description             PING

        check_command           check_ping!100.0,%!500.0,%

        }

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

        }

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

        }

出现问题会自动发送邮件到你设置的邮箱

这个部署的不太成功！网页没有显示。。。。明天重新再来一遍，再好好理解理解，这些安装包都特么好难找，这下我应该算是收集全了，在部署应该很快。

巴特西