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centos 7 下nagios 安装和配置
一、yum -y install httpd gcc glibc glibc-common *gd* php php-mysql mysql mysql-server mysql-devel php-snmp net-snmp net-snmp-libs net-snmp-utils php-pdo perl-DBD-MySQL rrd-tool
perl-rrdtool rrdtool-devel mariadb-server mariadb-devel
二、yum -y install gcc gcc-c++ autoconf libjpeg libjpeg-devel libpng libpng-devel freetype freetype-devel libxml2 libxml2-devel zlib zlib-devel glibc glibc-devel glib2 glib2-devel bzip2 bzip2-devel ncurses ncurses-devel curl curl-devel e2fsprogs e2fsprogs-devel krb5 krb5-devel libidn libidn-devel openssl openssl-devel
上面在cacti 安装配置中已经安装，这里就不再进行安装了
centos 7 yum 安装nagios
yum install nagios
yum install nagios-plugins-all
1、tar -zxvf nagios ...tar.gz
#useradd nagios
#passwd nagios
#cd nagios..
#./configure --prefix=/usr/local/nagios
#make all
#make install
#make install-init
# make install-commandmode
#make install-config
#make install-webconf 安装到了Apache目录下conf.d目录了
#make install-exfoliation
#make install-classicui
#修改httpd.conf里的User 和Group 为nagios 改了之后cacti注意，能不能使用cacti了
2、编译安装nagios-plugins-2.0 #./configure --prefix=/usr/local/nagios
#make&&make install
3、安装nrpe，#tar –zxvf nrpe-2.9.tar.gz
#./configure –prefix=/usr/local/nagios
#make all
#make install-pluhin
#make install-daemon
#make install-daemon-config
#chown–R nagios:nagios /usr/local/nagios
#更改/usr/local/nagios/etc/cgi.cfg 里面nagiosadmin 改成nagios
#service nagios start
#service httpd start
#service mysql start
# htpasswd -c /usr/local/nagios/etc/htpasswd.users nagios
#vim nagios/etc/objects/command.cfg 添加
define command{
command_name check_nrpe
command_line $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$ -t 30
}
# /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg
#/usr/local/nagios/bin/nagios -d /usr/local/nagios/etc/nagios.cfg
被监控主机配置：
4、安装nrpe
#./configure --prefix=/usr/loca/nagios
#make all && make install-plugin && make install-daemon && make install-daemon-conig
#vim /usr/local/nagios/etc/nrpe.conf 添加监控服务器IP
allowed_hosts=127.0.0.1,10.1.13.176
#/usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.conf -d 开启的端口是5666
#安装nagios-plugin
5、添加需要监控的插件和程序
#vim nrpe.conf ##例：
command[check_swap]=/usr/local/nagios/libexec/check_swap -w 50% -c 20%
6、yum install net-snmp-libs net-snmp-utils net-snmp
监控主机配置nrpe service
#mkdir server
#vim nagios.conf 添加 cfg_dir=/usr/local/nagios/etc/server
#vim /usr/local/nagios/etc/server/group.cfg
define hostgroup{
hostgroup_name Servers ; The name of the hostgroup
alias Servers ; Long name of the group
}
define hostgroup{
hostgroup_name backup ; The name of the hostgroup
alias backup ; Long name of the group
}
#cd /usr/local/nagios/etc/server && vim 10.1.13.213.cfg
define host{
use linux-server ; Name of host template to use
; This host definition will inherit all variables that are defined
hostgroups Servers
; in (or inherited by) the linux-server host template definition.
host_name 10.1.13.213
alias backup
address 10.1.13.213
}
define service{
use generic-service
host_name 10.1.13.213
service_description Ping
check_command check_ping!100.0,20%!150.0,60%
}
define service{
use generic-service ; Name of service template to u se
host_name 10.1.13.213
service_description Root Partition
check_command check_nrpe!check_sda1
}
define service{
use generic-service ; Name of service template to u se
host_name 10.1.13.213
service_description Current Users
check_command check_nrpe!check_users
}
define service{
use generic-service ; Name of service template to u se
host_name 10.1.13.213
service_description Total Processes
check_command check_nrpe!check_total_procs
}
define service{
use generic-service ; Name of service template to u se
host_name 10.1.13.213
service_description Current Load
check_command check_nrpe!check_load
}
define service{
use generic-service ; Name of service template to u se
host_name 10.1.13.213
service_description Swap Usage
check_command check_nrpe!check_swap
}
define service{
use generic-service ; Name of service template to u se
host_name 10.1.13.213
service_description SSH
check_command check_ssh!-p 2222!10.1.13.213
}
define service{
use generic-service ; Name of service template to u se
host_name 10.1.13.213
service_description HTTP
check_command check_nrpe!check_http
}
define service{
use generic-service ; Name of service template to u se
host_name 10.1.13.213
service_description zombie_proces
check_command check_nrpe!check_zombie_procs
}
#上面的红色字体，在被监控主机的nrpe.conf 的command 中要定义
监控mysql
#cd check_mysql_health
#./configure --prefix=/usr/local/nagios
#make && make install
#./usr/local/nagios/libexec/check_mysql_health 出现Can't locate Time/HiRes.pm in @INC 的perl 错误 ，解决办法：安装
#yum install -y perl-Time-HiRes
#vim 10.1.1.13.213.cfg
define service{
use local-service
host_name 10.1.13.213
service_description mysql
check_command check_nrpe!check_mysql_health
}
在被监控的主机上：#vim nrpe.conf 添加：command[check_mysql_health]=/var/www/nagios/libexec/check_mysql_health --hostname localhost --username root --port 3306 --password 910218 --mode threads-connected
#mysql -u root -p
>grant all privileges on *.* to 'root'@'%' identified by '910218';
>flush privileges;
>quit
在主监控服务器上测试被监控机上的mysql连接：mysql -u root -p 10.1.13.213
定义时间段和联系人
#vim timeperiods.cfg
define timeperiod{
name workday
timeperiod_name workday
alias workday
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
}
define timeperiod {
name weekends
timeperiod_name weekends
alias weekends
saturday 00:00-24:00
sunday 00:00-24:00
}
#vim templates.cfg
define contact{
name kobe
service_notification_period workday
host_notification_period workday
service_notification_options w,u,r,f,s
host_notification_options d,u,r,f,s
host_notification_commands notify-service-by-email
service_notification_commands notify-service-by-email
}
#vim contacts.cfg
define contact{
contact_name kobe
use kobe
alias bryant
host_notification_period workday
service_notification_period workday
email root@localhost
}
#service group 服务组
#vim object/servicegroup.cfg
define servicegroup{
servicegroup_name kobeservicegroup
alias kobeservicegroup
}
define servicegroup{
servicegroup_name bryantservicegroup
alias bryantservicegroup
}
#vim conf.d/10.1.13.213.cfg 添加servicegroups 名字
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