nagios的安装配置

1、  解决 nagios 的依赖关系，和所需组件：

# yum -y install httpd gcc glibc glibc-common *gd* php php-mysql mysql mysql-server

2、  nagios 所需组件： nagios nagios-plugins ndoutils( 非必须 ) ，

linux 客户端： nrpe   windows 客户端 NSClient++

创建 nagiso 用户和组：       

# groupadd nagcmd

# useradd -m nagios

# usermod -a -G nagcmd nagios

# usermod -a -G nagcmd apache

编译安装 nagios:    

# tar zxf nagios-3.1.2.tar.gz

# cd nagios-3.1.2

# ./configure --with-command-group=nagcmd --enable-event-broker --prefix=/var/www/nagios

 

# make all

# make install

# make install-init

# make install-config

# make install-commandmode

为 email 指定您想用来接收 nagios 警告信息的邮件地址，默认是本机的 nagios 用户 :

# vi /var/www/nagios/etc/objects/contacts.cfg

email        nagios@localhost       # 这个是默认设置

在 httpd 的配置文件目录 (conf.d) 中创建 Nagios 的 Web 程序配置文件：

# make install-webconf

创建一个登录 nagios web 程序的用户，这个用户帐号在以后通过 web 登录 nagios 认证时所用：

# htpasswd -c /var/www/nagios/htpasswd.users nagiosadmin

   启动服务：        #service httpd restart

编译安装 nagios-plusgins:

           # tar zxf nagios-plugins-1.4.13.tar.gz

# cd nagios-plugins-1.4.13

# ./configure --with-nagios-user=nagios --with-nagios-group=nagios --prefix=/var/www/nagios --with-mysql=/usr/lib/mysql

           #make && make install

启动服务：   

检测配置文件： # /var/www/nagios/bin/nagios -v /var/www/nagios/etc/nagios.cfg

              #service nagios restart

              #chkconfig nagios add

              #chkconfig nagios on

              #setenforce 0  这个只是临时关闭 selinux

当然，也可以通过以下方式将 nagios 的 CGI 程序运行于 SELinux/targeted 模式而不用关闭 selinux ：

# chcon -R -t httpd_sys_content_t /usr/local/nagios/sbin

# chcon -R -t httpd_sys_content_t /usr/local/nagios/share

在 web 中输入 http://IP/nagios 并输入密码和账户

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

windows 客户端安装 :NSClient++-0.3.8-Win32.msi 安装完后打开 nagios.cfg 文件将

注释去掉 cfg_file=/usr/local/nagios/etc/objects/windows.cfg

定义 windows.cfg

define host{

        use             windows-server  ; Inherit default values from a template

        host_name       winserver       ; The name we're giving to this host

        alias           My Windows Server       ; A longer name associated with the host

        address         192.168.0.191   ; 你主机的 IP

        }

++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

linux 客户端的安装：

先添加 nagios 用户

useradd nagios

为了安装 nrpe ，先安装 nagios-plugins-1.4.15.tar.gz 插件

# tar zxf nagios-plugins-1.4.15.tar.gz

# cd nagios-plugins-1.4.15

# ./configure --with-nagios-user=nagios --with-nagios-group=nagios

# make

# make install

 

tar -zxvf nrpe-2.12.tar.gz

cd nrpe-2.12.tar.gz

./configure  ( 会自动加载 SSL)

# 如果后面 make 报错 , 加如下参数

./configure --enable-ssl --with-ssl-lib=/usr/lib/( 当然前提要有 openssl)

make all

make install-plugin

make install-daemon

make install-daemon-config

 

4. 配置 nrpe 信息

vim /usr/local/nagios/etc/nrpe.cfg

allowed_hosts=127.0.0.1  // 允许监控的 IP

/usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg �Cd

服务端

3. 安装 NRPE

cd nagios-nrpe_2.8.1

./configure   # 默认自动添加了 openssl

# 因为传送过程要加密 , 如果后面 make 报错 , 加如下参数

rpm -qa| grep ssl

openssl-devel-0.9.7a-43.17.el4_6.1

rpm -ql openssl-devel-0.9.7a-43.17.el4_6.1 | more

./configure --enable-ssl --with-ssl-lib=/lib/( 当然前提要有 openssl)

make all

make install-plugin

添加步骤：

vi /usr/local/nagios/etc/objects/commands.cfg

      在 nagios.cfg 启用有以下行

         cfg_file=/usr/local/nagios/etc/objects/mylinux.cfg

4.commands.cfg 定义外部构件 nrpe

 

# 添加

#check nrpe

define command{

        command_name check_nrpe

        command_line $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$

        }

定义 mylinux.cfg

define host{

           use             linux-server

          host_name     mylinux

          alias            mylinux

          address        192.168.0.27( 客户端 IP 既被监控的 IP)

        }

define service{

        use                      generic-service

        host_name             mylinux

        service_description     check-swap

        check_command        check_nrpe!check_swap

               }

define service{

        use                      generic-service

        host_name             mylinux

        service_description     check-load

       check_command         check_nrpe!check_load

               }

define service{

        use                      generic-service

        host_name             mylinux

       service_description     check-disk

       check_command        check_nrpe!check_had1

define service{

        use                      generic-service

        host_name             mylinux

       service_description     check-users

       check_command        check_nrpe!check_users

               }

define service{

        use                    generic-service

        host_name           mylinux

        service_description  otal_procs

        check_command     check_nrpe!check_total_procs

}

 

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

define service{

        use                    generic-service

        host_name           mylinux

        service_description  httpd

        check_command     check_http! -H 192.168.0.27

}

 

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

nagios 监控 mysql 服务器：

 

1 、建立专用数据库：

[root@svr3 ~]# /usr/local/webserver/mysql/bin/mysql -u root -p

Enter password: 

Welcome to the MySQL monitor.  Commands end with ; or \g.

Your MySQL connection id is 51910

Server version: 5.5.3-m3-log Source distribution

 

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

 

mysql> create database nagios;

Query OK, 1 row affected (0.00 sec)

 

mysql> grant select on nagios.* to nagios@'%' identified by '123qweasd';

Query OK, 0 rows affected (0.00 sec)

 

mysql> flush privileges;

Query OK, 0 rows affected (0.00 sec)

 

mysql> select User,Password,Host from user;

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

| User           | Password                                  | Host             |

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

| root           | *84BB5DF4823DA319BBF86C99624479A198E6EEE9 | localhost        |

| nagios         | *A1F1CB851D62F002C09A0C9C4A76262473432F55 | %                |

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

14 rows in set (0.00 sec)

12 rows in set (0.00 sec)

 

[root@svr3 ~]# /usr/local/nagios/libexec/check_mysql -H 192.168.0.3 -u nagios -d nagios -p 123qweasd

Uptime: 970046  Threads: 1  Questions: 684583  Slow queries: 3  Opens: 672  Flush tables: 1  Open tables: 

     注意： check_mysql 必须如果没有则说明 mysql-devel 没有安装，需要安装后在重新编译安装 nagios-plugins 这个包

369  Queries per second avg: 0.705

 

[root@svr4 nrpe_install]# /usr/local/nagios/libexec/check_mysql -H 192.168.0.3 -u nagios -d nagios -p 123qweasd

Uptime: 970348  Threads: 1  Questions: 684584  Slow queries: 3  Opens: 672  Flush tables: 1  Open tables: 369  Queries per second avg: 0.705

 

果断开始设置：

# 定义用户

# 定义组，及隶属用户

# 用户增加

 

在 command.cfg 里增加插件命令：

#check mysql

define command{

command_name check_mysql

command_line $USER1$/check_mysql -H $HOSTADDRESS$ -u nagios -d nagios -p 123qweasd

}

 

# 定义服务：

define service {

        host_name mysql

     

        check_period 24x7

        max_check_attempts 2

        normal_check_interval 1

        retry_check_interval 1

        contact_groups admins

        notification_interval 5

        notification_period 24x7

        notification_options w,u,c,r

        check_command check_mysql

        }

       

       

飞信报警

1. 修改模板文件

修改 concont.cfg

2.

修改

 commands.cfg

define command{

        command_name notify-service-by-fetion

        command_line      /usr/bin/fetion --mobile 15003880800 --pwd 123qweQWE --to 15003880800 --msg-tpye=0  --msg-utf8 $HOSTNAME

0人

了这篇文章

类别： linux服务┆阅读( 0)┆评论( 0) ┆ 返回博主首页┆ 返回博客首页

上一篇 cacti的配置 下一篇 ntop