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這篇文章將為大家詳細(xì)講解有關(guān)linux中Nagios怎么安裝，小編覺得挺實(shí)用的，因此分享給大家做個(gè)參考，希望大家閱讀完這篇文章后可以有所收獲。
一、Nagios服務(wù)端安裝
1、安裝所需依賴關(guān)系包
2、添加Nagios所需用戶及組
3、編譯安裝Nagios及創(chuàng)建登陸Nagios WEB程序用戶
4、Nagios-plugin(插件)
5、配置服務(wù)自啟動(dòng)
二、基于NRPE配置Nagios監(jiān)控Win主機(jī)
1、被監(jiān)控端
安裝：NSClient++-0.3.9-x64
2、監(jiān)控端
1.測試與被監(jiān)控端連通性
2.監(jiān)控端定義命令、定義主機(jī)、定義服務(wù)
3.將定義好的模板加入到nagios.cfg文件中
4.重啟服務(wù)
三、基于NRPE監(jiān)控Linux主機(jī)
1、被監(jiān)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(dòng)腳本且增加權(quán)限
6.添加自啟動(dòng)
7.啟動(dòng)服務(wù)
2、配置監(jiān)控端：
1.安裝NRPE
安裝完成后，生成check_nrpe，使用此插件進(jìn)行測試被監(jiān)控主機(jī)
2.定義命令
3.定義主機(jī)和服務(wù)
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(wù)
7.網(wǎng)頁檢查hosts監(jiān)控狀況
******另關(guān)于基于NRPE監(jiān)控windows主機(jī),另行查詢網(wǎng)上資料******
一、安裝配置Nagios
1、解決安裝Nagios的依賴關(guān)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(yùn)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(gè)是默認(rèn)設(shè)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(dòng)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(shí)需要指定前面設(shè)定的web認(rèn)證帳號(hào)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(diào)用check命令目錄/usr/local/nagios/libexec
三、基于NSClinet++ 監(jiān)控遠(yuǎn)程Win主機(jī)
1、安裝配置被監(jiān)控端
安裝NSClient++-0.3.9-x64
2、進(jìn)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(jiān)控端進(jìn)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(jī)及服務(wù)
#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(wù)可根據(jù)實(shí)際情況進(jìn)行變更名稱可使用vim中替換進(jìn)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(jìn)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(jiān)控遠(yuǎn)程Linux主機(jī)
1、安裝配置被監(jiān)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(jiān)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(dòng)NRPE
# /usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg –d
為了便于NRPE服務(wù)的啟動(dòng)，可以將如下內(nèi)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(yuǎn)程主機(jī)監(jiān)控的對象
在被監(jiān)控端，可以通過NRPE監(jiān)控的服務(wù)或資源需要通過nrpe.conf文件使用命令進(jìn)行定義，定義命令的語法格式為：command[
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(jiān)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(huì)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(jiān)控遠(yuǎn)程主機(jī)及服務(wù)：
通過NRPE監(jiān)控遠(yuǎn)程Linux主機(jī)要使用chech_nrpe插件進(jìn)行，其語法格式如下：
check_nrpe -H
定義監(jiān)控遠(yuǎn)程Linux主機(jī)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(yuǎn)程Linux主機(jī)：
define host{
use linux-server
host_name linhost
alias my Linux Host
address 192.168.1.124
}
如主機(jī)組不需要?jiǎng)t注釋，添加服務(wù)可參照被監(jiān)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(jìn)行詳細(xì)配置服務(wù) ***定義遠(yuǎn)程Linux服務(wù)：也可以在后加參數(shù)進(jìn)行設(shè)定監(jiān)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(shè)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(jìn)行測試配置文件 # /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg5）重啟服務(wù)#service nagios restart
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