http://chenhao6.blog.51cto.com/6228054/1323192
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CentOS 6.2+Nginx+Nagios,手机短信和qq邮箱提醒
注：192.168.0.21 服务端
192.168.0.22 客户端
环境：两台centos6.0 64位系统，都已经搭建好了源码的lnmp平台
结尾附上所需的软件包
1.nagios安装（中文版）
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tar xvftar.bz2
cd nagios-cn-3.2.3
useradd -m/bin/bash nagios
usermod -a
./configure --prefix=/usr/local/nagios --with-command-group=nagcmd
make
make all
make install
make install-init #
make install-config #
make install-commandmode #
chmod o+rwx /usr/local/nagios/var/rw
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2.nagios-plugins安装
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wget//prdownloads.sourceforge.net/sourceforge/nagiosplug/nagios-plugins
tar zxvftar.gz
cd nagios-plugins-1.4.16
yum install make apr*
openssl
kernel
cloog-ppl
krb5-devel
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./configure --prefix=/usr/local/nagios --with-mysql=/home/mysql/
make
make install
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3.nrpe安装
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tar xzvftar.gz
cd nrpe-2.12
./configure
make
./configure
make all
make install-plugin
make install-daemon
make install-daemon-config
\cp src/check_nrpe /usr/local/nagios/libexec/
/usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg
echo '/usr/local/nagios/bin/nrpe >> /etc/rc.local
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要重启nrpe进行就先杀掉进行，然后重启
kill `ps auxgrep nrpegrep -v grep |awk '{print`
/usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg
本机测试下：
/usr/local/nagios/libexec/check_nrpe -H
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加入系统服务
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加入系统服务并设为开机自动
chkconfig
chkconfig
chown nagios.nagios /usr/local/nagios/var/rw
#
/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg
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添加别名命令，方便测试配置文件
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vi ~/.bashrc
在里面用alias 来自定义一个命令来代替，这里我用check
alias check='/usr/local/nagios/bin/nagios
source ~/.bashrc
此时可以用check命令来检测配置文件了
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修改联系人邮箱，修改为用于报警接收的邮件地址
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vi /usr/local/nagios/etc/objects/contacts.cfg
###############################################################################
#
#
#
#
#
#
#
#
#
#
#
#
###############################################################################
###############################################################################
###############################################################################
#
#
#
###############################################################################
###############################################################################
#
#
#
define
contact_name
use
alias Nagios
email
}
###############################################################################
###############################################################################
#
#
#
###############################################################################
###############################################################################
#
#
define
contactgroup_name
alias Nagios
members
}
定义check_nrpe命令
vi /usr/local/nagios/etc/objects/commands.cfg
define command{
command_name
command_line /usr/local/nagios/libexec/check_nrpe -H
}
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检测配置文件是否有误
check
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nginx
安装FCGI模块
cd
tar zxvftar.gz
cd FCGI-0.70
perl
make
make install
cd
安装
tar zxvftar.gz
cd IO-1.25
perl
make
make install
cd
tar zxvftar.gz
cd IO-All-0.41
perl
make
make install
cd
unzip
cp perl-fcgi.pl /usr/local/nginx/
chmod 755 /usr/local/nginx/perl-fcgi.pl
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vi /usr/local/nginx/start_perl_cgi.sh
#!/bin/bash
#set
dir=/usr/local/nginx/
stop
{
#pkill
kill $(cat $dir/logs/perl-fcgi.pid)
rm $dir/logs/perl-fcgi.pid/dev/null
rm $dir/logs/perl-fcgi.sock/dev/null
echo "stop
}
start
{
rm $dir/now_start_perl_fcgi.sh/dev/null
chown nobody.rootdir/logs
echo "$dir/perl-fcgi.pl >>$dir/now_start_perl_fcgi.sh
chown nobody.nobodydir/now_start_perl_fcgi.sh
chmod u+xdir/now_start_perl_fcgi.sh
sudo -udir/now_start_perl_fcgi.sh
echo "start
}
case $1 in
stop)
stop
;;
start)
start
;;
restart)
stop
start
;;
esac
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把start_perl_cgi.sh文件中的nobody全部用nagios替换，nginx
目录上的用户
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sed -i 's@nobody@nagios@g' /usr/local/nginx/start_perl_cgi.sh
chmod 755 /usr/local/nginx/start_perl_cgi.sh
/usr/local/nginx/start_perl_cgi.sh
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#
vi /usr/local/nagios/etc/cgi.cfg
找到use_authentication=1并把值改为0
修改联系人邮箱，修改为用于报警接收的邮件地址
vi /usr/local/nagios/etc/objects/contacts.cfg
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到这一步就是正常的
下面nginx 配置
我把监听改成80的了
然后开启服务
就可以访问了，然后继续安装客户端，最后给大家截图看效果
service nagios start
nagios被控端安装
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yum install openssl-devel
1.
groupadd
useradd nagios/sbin/nologin -g
tar xvftar.gz
cd nagios-plugins-1.4.16
./configure --prefix=/usr/local/nagios --with-nagios-user=nagios/usr/local/mysql && make && make install
cd
2.
tar zxvftar.gz
cd nrpe-2.13
./configure
make all
make install-plugin
make install-daemon
make install-daemon-config
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启动nrpe
/usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg
echo '/usr/local/nagios/bin/nrpe >> /etc/rc.local
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监控服务端本机：自己监控自己不需要配置nrpe，服务端的nrpe只用于获取客户端的nrpe传送过来的数据，在这里因为中文版的nagios已经默认有些配置，等会儿修改下直接用了
监控客户端：监控的服务有：mysql、nginx、memory、ip连接数、僵死的进程、磁盘空间、磁盘IO、登录用户数、进程总数、cpu负载、PING、SSH
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unzip
\cp libexec/* /usr/local/nagios/libexec
chmod -R/usr/local/nagios/libexec
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装插件
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创建一个空的数据库nagios，授权nagios这个用户从任何地方访问nagios这个数据库，刷新授权设置，查询下nagios这个用户是否创建成功
create
grant select on'%' identified'123456';
flush
select User,Password,Host
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添加mysql库到系统搜索库
vim /etc/ld.so.conf
/usr/local/mysql/lib
ldconfig
要监控磁盘io，还得安装sysstat这个工具包
yum install sysstat
配置客户端上面的nrpe
vim /usr/local/nagios/etc/nrpe.cfg
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配置客户端上面的nrpe
vim /usr/local/nagios/etc/nrpe.cfg
command[check_users]=/usr/local/nagios/libexec/check_users -w
command[check_load]=/usr/local/nagios/libexec/check_cpu.sh
command[check_sda1]=/usr/local/nagios/libexec/check_disk -w/dev/sda1
command[check_sda2]=/usr/local/nagios/libexec/check_disk -w/dev/sda2
command[check_zombie_procs]=/usr/local/nagios/libexec/check_procs -w
command[check_total_procs]=/usr/local/nagios/libexec/check_procs -w
command[check_swap]=/usr/local/nagios/libexec/check_swap -w
command[check_iostat]=/usr/local/nagios/libexec/check_iostat.sh
command[check_mysql]=/usr/local/nagios/libexec/check_mysql -H
command[check_nginx]=/usr/local/nagios/libexec/check_nginx.sh/status -w
command[check_mem]=/usr/local/nagios/libexec/check_memory.pl
command[check_ip_conn]=/usr/local/nagios/libexec/ip_conn.sh
command[check_ssh]=/usr/local/nagios/libexec/check_tcp -p
配置完成后，重启nrpe
kill `ps auxgrep nrpegrep -v grep |awk '{print`
/usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg
服务端配置：
监控服务端本机的配置：
vim /usr/local/nagios/etc/objects/localhost.cfg
修改里面的配置，最后修改完成的配置如下
define
use
host_name
alias localhost
address
icon_image
statusmap_image
2d_coords
3d_coords
}
define
hostgroup_name
alias Linux
members
}
define
servicegroup_name
alias 联通性检查
members
}
define
use local-service
host_name
service_description
check_command
}
define
use local-service
host_name
service_description
check_command
}
define
use local-service
host_name
service_description
check_command
}
define
use local-service
host_name
service_description
check_command
}
define
use local-service
host_name
service_description
check_command
}
define
use local-service
host_name
service_description
check_command
}
define
use local-service
host_name
service_description
check_command
notifications_enabled
}
服务器监控客户端的配置：
保存退出后复制这个文件一份，作为nagios-client的监控模版文件
cp /usr/local/nagios/etc/objects/localhost.cfg /usr/local/nagios/etc/objects/nagios-client.cfg
vim /usr/local/nagios/etc/objects/nagios-client.cfg
define
use
host_name
alias nagios-client
address
icon_image
statusmap_image
2d_coords
3d_coords
}
define
use local-service
host_name
service_description
check_command
}
define
use local-service
host_name
service_description
check_command
}
define
use local-service
host_name
service_description
check_command
}
define
use local-service
host_name
service_description
check_command
}
define
use local-service
host_name
service_description
check_command
}
define
use local-service
host_name
service_description
check_command
}
define
use local-service
host_name
service_description
check_command
}
define
use local-service
host_name
service_description
check_command
notifications_enabled
}
define
use local-service
host_name
service_description
check_command
}
define
use local-service
host_name
service_description
check_command
}
define
use local-service
host_name
service_description
check_command
}
define
use local-service
host_name
service_description
check_command
}
define
use local-service
host_name
service_description
check_command
}
define
use local-service
host_name
service_description
check_command
}
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直接把原来的邮件报警的两条命令中的/bin/mail修改为/usr/bin/mutt即可，如下图
加快nagios的报警时间设置:
1.修改模版文件：
vim /usr/local/nagios/etc/objects/templates.cfg
修改所有normal_check_interval项的值为1，既发现故障后1分钟就报警
修改所有check_interval项的值为1，即正常情况下每分钟检查一次
修改所有notification_interval #在主机出现异常后，故障一直没有解决，nagios再次对使用者发出通知的时间
service
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测试告警：
试验完成！
附上软件包所需软件地址
缺的软件可以直接找我要！
http://down.51cto.com/data/1007210
本文出自 “浩子的▁运维笔录ヽ” 博客，请务必保留此出处http://chenhao6.blog.51cto.com/6228054/1323192