很久沒有更新博客了，記錄下我在生產(chǎn)環(huán)境下安裝nagios3.2.0，

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一、nagios 的安裝

1.1 基礎(chǔ)支持套件

1）gcc glibc glibc-common gd gd-devel xinetd openssl-devel

# yum install -y gcc glibc glibc-common gd gd-devel xinetd openssl-devel

2）部署lamp環(huán)境 yum install httpd MySQL mysql-server php php-mysql -y ，或源碼安裝

1.2 創(chuàng)建nagios用戶和用戶組

# /usr/sbin/useradd -m nagios

# /usr/sbin/useradd apache -M -s /sbin/nologin

# /usr/sbin/groupadd nagcmd

# /usr/sbin/usermod -a -G nagcmd nagios

# /usr/sbin/usermod -a -G nagcmd apache

1.3 編譯安裝nagios

# wget http://sourceforge.net/projects/nagios/files/nagios-3.x/nagios-3.2.0/nagios-3.2.0.tar.gz/download

# tar zxvf nagios-3.2.0.tar.gz

# cd nagioss-3.2.0

# ./configure --prefix=/usr/local/nagios --with-group=nagios --with-user=nagios --with-command-group=nagcmd

# make all

# make install

# make install-init

# make install-config

# make install-commandmode

# make install-webconf

驗(yàn)證程序是否被正確安裝

切換目錄到安裝路徑（這里是/usr/local/nagios），看是否存在etc、bin、sbin、share、var 這五個(gè)目錄，

1.4 設(shè)置開機(jī)自起

# chkconfig --add nagios

# chkconfig nagios on

1.5 安裝nagios插件

# wget http://prdownloads.sourceforge.net/sourceforge/nagiosplug/nagios-plugins-1.4.15.tar.gz

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

# cd nagios-plugins-1.4.15

# ./configure --prefix=/usr/local/nagios --with-nagios-user=nagios --with-nagios-group=nagios --enable-perl-modules

# make && make install

1.6 創(chuàng)建apache目錄驗(yàn)證文件

# htpasswd -c /usr/local/nagios/etc/htpasswd nagios

1.7 給nagios用戶開權(quán)限，讓他能夠查看信息

# vim /usr/local/nagios/etc/cgi.cfg 在所有的nagiosadmin后面添加nagios用，隔開

:%s/nagiosadmin/nagiosadmin\,nagios/g

到這里nagios 的安裝也就基本完成了，啟動(dòng)apache，你可以通過web來訪問了

1.8 定義監(jiān)控項(xiàng) 在/usr/local/nagios/etc/objects目錄下

時(shí)間timeperiods.cfg 配置文件

define timeperiod{

timeperiod_name 24x7

alias 24 Hours A Day, 7 Days A Week

sunday 00:00-24:00

monday 00:00-24:00

tuesday 00:00-24:00

wednesday 00:00-24:00

thursday 00:00-24:00

friday 00:00-24:00

saturday 00:00-24:00

}

插件commands.cfg

define command{

command_name check-host-alive

command_line $USER1$/check_ping -H $HOSTADDRESS$ -w 3000.0,80% -c 5000.0,100% -p 5

}

監(jiān)控誰localhost.cfg

define host {

host_name fudong

alias test

address 0.0.0.0

check_command check-host-alive

notification_options d,u,r

check_interval 1

max_check_attempts 2

contact_groups admins

notification_interval 10

notification_period 24x7

}

聯(lián)系人contacts.cfg

define contact {

contact_name kyo

alias kyo

host_notification_period 24x7

host_notification_options d,u,r

service_notification_period 24x7

service_notification_options w,u,c,r

service_notification_commands notify-service-by-email

host_notification_commands notify-host-by-email

email root@163.com

}

define contactgroup{

contactgroup_name admins

alias Nagios Administrators

members nagiosadmin,kyo

}

1.9 檢查錯(cuò)誤

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

二、監(jiān)控遠(yuǎn)程主機(jī)nrpe插件的安裝(被監(jiān)控主機(jī)上的)

2.1 解決perl編譯問題與時(shí)間同步

# echo "export LC_ALL=C">>/etc/profile

# source /etc/profile

# /usr/sbin/ntpdate pool.ntp.org

# uptime

2.2 安裝Nagios所需要的基礎(chǔ)軟件包

# yum install gcc glibc glibc-common gd gd-devdel openssl-devel -y

2.3 建立nagios用戶

# useradd nagios

2.4 安裝插件

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

# cd nagios-plugins-1.4.15

# ./configure --prefix=/usr/local/nagios --with-nagios-user=nagios --with-nagios-group=nagios

# make && make install

2.5 安裝NRPE

# wget http://prdownloads.sourceforge.net/sourceforge/nagios/nrpe-2.13.tar.gz

# tar zxvf nrpe-2.13.tar.gz

# cd nrpe-2.13

# ./configure

# make all

# make install-plugin #監(jiān)控機(jī)需要安裝check_nrpe 這個(gè)插件，被監(jiān)控機(jī)并不需要，

# make install-daemon

# make install-daemon-config

# make install-xinetd

2.6 在被監(jiān)控機(jī)上開啟nrpe

# vim /etc/xinetd.d/nrpe

# default: on

# description: NRPE (Nagios Remote Plugin Executor)

service nrpe

{

flags = REUSE

socket_type = stream

port = 5666

wait = no

user = nagios

group = nagios

server = /usr/local/nagios/bin/nrpe

server_args = -c /usr/local/nagios/etc/nrpe.cfg --inetd

log_on_failure += USERID

disable = no

only_from = 192.168.18.254 ＃監(jiān)控主機(jī)的ip，保證他可以連接進(jìn)來！

}

2.7 編輯/etc/services 文件，增加NRPE服務(wù)

# vim /etc/services

nrpe 5666/tcp

# service xinetd restart

2.8 查看NRPE是否啟動(dòng)與測(cè)試

# netstat -an |grep 5666

# /usr/local/nagios/libexec/check_nrpe -H 192.168.18.188

NRPE v2.12 返回當(dāng)前NRPE的版本 也就是在本地用check_nrpe連接nrpe daemon是正常的。

注：為了后面工作的順利進(jìn)行，注意本地防火墻要打開5666能讓外部的監(jiān)控機(jī)訪問。

# iptables -I INPUT -p tcp --dport 5666 -j ACCEPT

2.9 查看NRPE的監(jiān)控命令

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

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

command[check_u]=/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_hda1]=/usr/local/nagios/libexec/check_disk -w 20% -c 10% -p /dev/hda1

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

通過以上字段來定義命令，以及接收命令后執(zhí)行的插件。

重啟nagios服務(wù)

新聞名稱：nagios3.2.0搭建過程
新聞來源：http://aaarwkj.com/article2/jeisoc.html

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