linux中Nagios怎么安裝

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一、Nagios服務端安裝

1、安裝所需依賴關系包

2、添加Nagios所需用戶及組

3、編譯安裝Nagios及創建登陸Nagios WEB程序用戶

4、Nagios-plugin(插件)

5、配置服務自啟動

二、基于NRPE配置Nagios監控Win主機

    1、被監控端

        安裝：NSClient++-0.3.9-x64

    2、監控端

        1.測試與被監控端連通性

        2.監控端定義命令、定義主機、定義服務

        3.將定義好的模板加入到nagios.cfg文件中

        4.重啟服務

三、基于NRPE監控Linux主機

    1、被監控端：

        1.添加用戶

        2.安裝插件nagios-plugins-1.4.15

        3.安裝NRPE

        4.配置NRPE配置文件 

                #vi /usr/local/nagios/etc/nrpe.cfg

        5.定義nrpe啟動腳本且增加權限

        6.添加自啟動

        7.啟動服務

    2、配置監控端：

        1.安裝NRPE

            安裝完成后，生成check_nrpe，使用此插件進行測試被監控主機

        2.定義命令

        3.定義主機和服務

        4.將定義好的linhost.cfg配置文件的路徑添加至/usr/localhost/etc/nagios.cfg中

        5.測試配置文件  /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg

        6.重啟服務

        7.網頁檢查hosts監控狀況

******另關于基于NRPE監控windows主機,另行查詢網上資料******

一、安裝配置Nagios

1、解決安裝Nagios的依賴關系：

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

2、添加nagios運行所需要的用戶和組：

# groupadd  nagcmd

# useradd -G nagcmd nagios

# passwd nagios

# usermod -a -G nagcmd apache

3、編譯安裝nagios：

# tar zxf nagios-3.3.1.tar.gz

# cd nagios-3.3.1

# ./configure --with-command-group=nagcmd --enable-event-broker

# make all

# make install

# make install-init

# make install-commandmode

# make install-config

# vi /usr/local/nagios/etc/objects/contacts.cfg

emailnagios@localhost       #這個是默認設置

# make install-webconf

# htpasswd -c /usr/local/nagios/etc/htpasswd.users nagiosadmin

# service httpd restart

4、編譯、安裝nagios-plugins

# 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

5、配置并啟動Nagios    

 #vi /usr/local/nagios/etc/nagios.cfg

# chkconfig --add nagios

# chkconfig nagios on

# /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg

# service nagios start

6、配置selinux

#getenforce

#setenforce 0

7、通過web界面查看nagios：

http://your_nagios_IP/nagios

登錄時需要指定前面設定的web認證帳號和密碼。

二、配置文件

Nagios的主配置文件

 /usr/local/nagios/etc/nagios.cfg

Nagios模板配置目錄

/usr/local/nagios/etc/objects

調用check命令目錄/usr/local/nagios/libexec

三、基于NSClinet++  監控遠程Win主機

1、安裝配置被監控端

    安裝NSClient++-0.3.9-x64

2、進行測試是否連通

#cd /usr/local/nagios/libexec

#./check_nt -H 192.168.1.119 -v UPTIME -p 12489 

如有密碼則：#./check_nt -H 192.168.1.119 -v UPTIME -p 12489 -s luoxj,123

3、監控端進行配置

&&&定義commands.cfg-------------------定義命令

 #cd /usr/local/nagios/etc/objects/

 #vi commands.cfg   

define command{

        command_name    check_nt

        command_line    $USER1$/check_nt -H $HOSTADDRESS$ -p 12489 -v $ARG1$ $ARG2$

        }

&&&定義主機及服務

#vi windows.cfg

define host{

        use             windows-server  

        host_name       winhost

        alias           My Windows Host

        address         192.168.1.119

        }

define service{        use                     generic-service        host_name               winhost        service_description     NSClient++ Version        check_command           check_nt!CLIENTVERSION        }定義服務可根據實際情況進行變更名稱可使用vim中替換進行：.,$s@winserver@winhost@g

&&&啟用定義的文件，增加定義文件路徑

#vi /usr/local/nagios/etc/nagios.cfg

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

&&&進行測試，以確定配置文件沒有問題

# /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg -d

#service nagios restart

四、基于NRPE監控遠程Linux主機

1、安裝配置被監控端

    1）先添加nagios用戶

    # useradd -s /sbin/nologin nagios

    2）NRPE依賴于nagios-plugins，因此，需要先安裝之

    # 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 all

    # make instal

    3）安裝NRPE

    # tar -zxvf nrpe-2.12.tar.gz

    # cd nrpe-2.12.tar.gz

    # ./configure --with-nrpe-user=nagios \

    --with-nrpe-group=nagios \

    --with-nagios-user=nagios \

    --with-nagios-group=nagios \

    --enable-command-args \

    --enable-ssl

    # make all

    # make install-plugin

    # make install-daemon

    # make install-daemon-config

    4）配置NRPE

    # vim /usr/local/nagios/etc/nrpe.conf

    log_facility=daemon

    pid_file=/var/run/nrpe.pid

    server_address=172.16.100.11

    server_port=5666

    nrpe_user=nagios

    nrpe_group=nagios

    allowed_hosts=172.16.100.1

    command_timeout=60

    connection_timeout=300

    debug=0

    &&&&&&&&定義監控對象命令&&&&&&&&&

    command[check_users]=/usr/local/nagios/libexec/check_users -w 5 -c 10

    command[check_load]=/usr/local/nagios/libexec/check_load -w 15,10,5 -c 30,25,20

    command[check_sda1]=/usr/local/nagios/libexec/check_disk -w 20% -c 10% -p /dev/sda1

    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 

    5）啟動NRPE

    # /usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg –d

    為了便于NRPE服務的啟動，可以將如下內容定義為/etc/init.d/nrped腳本：

    #vi /etc/init.d/nrped

    #!/bin/bash

    # chkconfig: 2345 88 12

    # description: NRPE DAEMON

NRPE=/usr/local/nagios/bin/nrpe

NRPECONF=/usr/local/nagios/etc/nrpe.cfg

case "$1" in

       start)

              echo -n "Starting NRPE daemon..."

              $NRPE -c $NRPECONF -d

              echo " done."

              ;;

       stop)

              echo -n "Stopping NRPE daemon..."

              pkill -u nagios nrpe

              echo " done."

       ;;

       restart)

              $0 stop

              sleep 2

              $0 start

              ;;

       *)

              echo "Usage: $0 start|stop|restart"

              ;;

       esac

exit 0

    #chmod +x /etc/init.d/nrped

    #service nrped start

    #netstat -tnlp    ##檢查nrpe端口5666是否啟用

        tcp        0      0 0.0.0.0:5666                0.0.0.0:*                   LISTEN      17282/nrpe 

    #service iptables stop

    #setenforce 0

    6）配置允許遠程主機監控的對象

    在被監控端，可以通過NRPE監控的服務或資源需要通過nrpe.conf文件使用命令進行定義，定義命令的語法格式為：command[<command_name>]=<command_to_execute>。比如：

    command[check_rootdisk]=/usr/local/nagios/libexec/check_disk -w 20% -c 10% -p /

    command[check_swap]=/usr/local/nagios/libexec/check_disk -w 40% -c 20%

    command[check_sensors]=/usr/local/nagios/libexec/check_sensors

    command[check_users]=/usr/local/nagios/libexec/check_users -w 10 -c 20

    command[check_load]=/usr/local/nagios/libexec/check_load -w 10,8,5 -c 20,18,15

    command[check_zombies]=/usr/local/nagios/libexec/check_procs -w 5 -c 10 -s Z

    command[check_all_procs]=/usr/local/nagios/libexec/check_procs -w 150 -c 200

2、配置監控端

1）安裝NRPE

# tar -zxvf nrpe-2.12.tar.gz

# cd nrpe-2.12.tar.gz

# ./configure --with-nrpe-user=nagios \

--with-nrpe-group=nagios \

--with-nagios-user=nagios \

--with-nagios-group=nagios \

--enable-command-args \

     --enable-ssl

# make all

# make install-plugin

安裝完成后，/usr/local/nagios/libexec/check_nrpe就會生成此插件，可測試客戶端工作正常于否

#cd /usr/local/nagios/libexec/

#./check_nrpe -H 192.168.1.124

NRPE v2.12

2）定義如何監控遠程主機及服務：

通過NRPE監控遠程Linux主機要使用chech_nrpe插件進行，其語法格式如下：

check_nrpe -H <host> [-n] [-u] [-p <port>] [-t <timeout>] [-c <command>] [-a <arglist...>]

定義監控遠程Linux主機的命令：

#vi /usr/local/nagios/etc/objects/commands.cfg   添加nrpe命令  

define command{

        command_name    check_nrpe

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

}

************建立模板文件******************

#cd /usr/local/nagios/etc/objects/

#vim linhost.cfg   或是  #cp localhost.cfg linhost.cfg       

 ***定義遠程Linux主機：

define host{

        use                     linux-server       

        host_name         linhost

        alias                   my Linux Host

        address              192.168.1.124

        }

如主機組不需要則注釋，添加服務可參照被監控端/usr/local/nagios/etc/nrpe.cfg中的command[check_users]=/usr/local/nagios/libexec/check_users -w 5 -c 10command[check_load]=/usr/local/nagios/libexec/check_load -w 15,10,5 -c 30,25,20command[check_sda1]=/usr/local/nagios/libexec/check_disk -w 20% -c 10% -p /dev/sda1command[check_zombie_procs]=/usr/local/nagios/libexec/check_procs -w 5 -c 10 -s Zcommand[check_total_procs]=/usr/local/nagios/libexec/check_procs -w 150 -c 200 進行詳細配置服務 ***定義遠程Linux服務：也可以在后加參數進行設定監控
 define service{
        use                     generic-service        host_name               linhost        service_description     check_users        check_command           check_nrpe!check_users        }# Create a service for monitoring the uptime of the server
# Change the host_name to match the name of the host you defined abovedefine service{        use                     generic-service        host_name               linhost        service_description     load        check_command           check_nrpe!check_load        }# Create a service for monitoring CPU load
# Change the host_name to match the name of the host you defined abovedefine service{        use                     generic-service        host_name               linhost        service_description     sda1        check_command           check_nrpe!check_sda1        }# Create a service for monitoring memory usage
# Change the host_name to match the name of the host you defined abovedefine service{        use                     generic-service        host_name               linhost        service_description     Zombie        check_command           check_nrpe!check_zombie_procs        }define service{        use                     generic-service        host_name               linhost        service_description     Total procs        check_command           check_nrpe!check_total_procs        }3）將設定好的linhost.cfg文件添加至/usr/local/nagios/etc/nagios.cfg中#vi /usr/local/nagios/etc/nagios.cfg

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

4）進行測試配置文件 # /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg5）重啟服務#service nagios restart

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