搭建nagios监控

来源：互联网发布：数据采集控制箱编辑：程序博客网时间：2024/05/23 12:28

配置监控端

yum -y install gcc gcc-c++ autoconf libjpeg libjpeg-devellibpng libpng-devel freetype freetype-devel libxml2 libxml2-develzlib zlib-devel glibc glibc-devel glib2 gd gd-devel glib2-develbzip2 bzip2-devel ncurses ncurses-devel curl curl-devel openssl openssl-devellibmcrypt-devel libtool libtool-devel

安装apache

#useradd www

#tar -jxvf httpd-2.2.24.tar.bz2

#./configure --prefix=/usr/local/apache --enable-module=so--enable-deflate=shared --enable-expires=shared--enable-rewrite=shared --enable-cache --enable-file-cahe--enable-mem-cache --enable-disk-cache --enable-static-support --enable-ssl --enable-so

#make && make install

#cp /usr/local/apache/bin/apachectl /etc/init.d/httpd

#vim /usr/local/apache/conf/httpd.conf

#/etc/init.d/httpd start

安装PHP

# tar -zxvf php-5.3.6.tar.gz

#./configure --prefix=/usr/local/php--with-config-file-path=/usr/local/php/etc--with-apxs2=/usr/local/apache/bin/apxs --with-gd--with-freetype-dir --with-jpeg-dir --with-png-dir --with-zlib--enable-safe-mode --enable-mbstring --with-gd --enable-gd-native-ttf --with-openssl --enable-zip --enable-sockets

# make && make install

编辑apache配置文件

#vim /usr/local/apache/conf/httpd.conf

找到AddType模块处添加

AddTypeapplication/x-httpd-php-source .phps

AddTypeapplication/x-httpd-php .php .phtml

在index.html前添加index.php

# useradd nagios -s /sbin/nologin

# mkdir /usr/local/nagios

# chown nagios:nagios /usr/local/nagios/ -R

# tar -jxvf nagios-cn-3.2.3.tar.bz2

# ./configure --prefix=/usr/local/nagios/--with-gd-lib=/usr/lib --with-gd-inc=/usr/include--with-nagios-user=nagios --with-nagios-group=nagios--with-command-group=nagios

#make all

#make install

#make install-init

#make install-commandmode

#make install-config

******#make install-webconf//如果是rpm包安装的apache，可以执行，否则报错，做如下操作即可

#vim /usr/local/apache/conf/httpd.conf

在最后添加

Alias /nagios/cgi-bin/images/"/usr/local/nagios/share/images/"

AllowOverride None

Options None

Order allow,deny

Allow from all

AuthName "NagiosAccess"

AuthType Basic

AuthUserFile/usr/local/nagios/etc/.passwd.conf

Require valid-user

ScriptAlias /nagios/cgi-bin/ "/usr/local/nagios/sbin/"

AllowOverride None

Options None

Order allow,deny

Allow from all

AuthName "NagiosAccess"

AuthType Basic

AuthUserFile/usr/local/nagios/etc/.passwd.conf

Require valid-user

Alias /nagios/ "/usr/local/nagios/share/"

AllowOverride None

Options None

Order allow,deny

Allow from all

AuthName "NagiosAccess"

AuthType Basic

AuthUserFile/usr/local/nagios/etc/.passwd.conf

Require valid-user

AddDefaultCharset utf-8 //防止部分中文乱码

# /usr/local/apache/bin/htpasswd -c/usr/local/nagios/etc/.passwd.conf nagiosadmin //生成nagios口令密码

或者

# /usr/local/apache/bin/htpasswd -bc/usr/local/nagios/etc/.passwd.conf nagiosadmin nagiosadmin

# /usr/local/nagios/bin/nagios -v/usr/local/nagios/etc/nagios.cfg //检查文件是否出错

#/etc/init.d/nagios start

#/etc/init.d/httpd start

访问http://IP/nagios/ //别名里有/，这里就要有/

# chmod o+w /usr/local/nagios/var/rw/nagios.cmd//更改事件通知时会用到

#/usr/local/nagios/bin/nagios -d /usr/local/nagios/etc/nagios.cfg//nagios手动重启

安装插件

# tar -zxvf nagios-plugins-1.4.16.tar.gz

# ./configure--prefix=/usr/local/nagios/

# make && make install

#tar -zxvf nrpe-2.12.tar.gz

#./configure--prefix=/usr/local/nagios/

#make all

#make install-plugin

#make install-daemon

#make install-daemon-config

#make install-xinetd

#vim /usr/local/nagios/etc/objects/commands.cfg

在最后加上

define command{

command_name check_nrpe

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

}

或者

define command{

command_name check_nrpe

command_line/usr/local/nagios/libexec/check_nrpe -H $HOSTADDRESS$ -c$ARG1$

}

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

#/usr/local/nagios/bin/nagios -d /usr/local/nagios/etc/nagios.cfg//nagios手动重启

配置被监控的

#yum install openssl openssl-devel

# useradd nagios -s /sbin/nologin

#tar -zxvf nagios-plugins-1.4.16.tar.gz -C/usr/local/src/

#./configure --prefix=/usr/local/nagios

#make

#make install

#chown nagios:nagios /usr/local/nagios/ -R

#tar -zxvf nrpe-2.12.tar.gz -C /usr/local/src/

#./configure --prefix=/usr/local/nagios/

#make all

#make install-plugin

#make install-deamon

#make install-daemon-config

#make install-xinetd

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

修改如下内容，根据自己需求修改

allowed_hosts=127.0.0.1 //添加ip用逗号分隔

command[check_users]=/usr/local/nagios//libexec/check_users -w5 -c 10

command[check_load]=/usr/local/nagios//libexec/check_load -w15,10,5 -c 30,25,20

command[check_hda1]=/usr/local/nagios//libexec/check_disk -w20% -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

# vim /etc/xinetd.d/nrpe

修改only from的IP //多个ip用逗号分隔

# vim /etc/services

在最后添加

nrpe 5666/tcp #nrpe

# /etc/init.d/xinetd restart //启动xinetd

# /usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg-d //启动nrpe,没生成/bin或者启动文件,可以从监控端cp一个过来

# netstat -anpt |grep 5666 //查看端口，看nrpe是否启动

添加监控主机和监控服务

例如：

# vim host.cfg

define host{

use linux-server

host_name webserver

alias web

# parents

address 192.168.10.132

icon_image server.gif

statusmap_image server.gd2

2d_coords 500,200

3d_coords 500,200,100

}

define service{

use local-service ; Name of service template touse

host_name webserver

service_description HTTP

check_command check_nrpe!check_http -I192.168.10.132 -p 80 -e 403,202 //监控192.168.10.132主机的80端口，返回值为403和 202时，为ok状态

notifications_enabled 0

}

报错解决方法

HTTP WARNING: HTTP/1.1 403 Forbidden - 5240 bytes in 0.070second response time

主要是监控端在检测被监控端下/var/www/html/index.html文件，编译安装的apache可定不在这个下面，所以创建一个就好了

在被监控机上#touch /var/www/html/index.html

监控网站主页

# vim commands.cfg

添加

define command{

command_name check_index

command_line $USER1$/check_http $ARG1$

}

# vim host.cfg

define service{

use local-service ; Name of service template touse

host_name localhost

service_description HTTP

check_command check_index!-H 192.168.0.106-u /index.php //如果域名监控,格式是check_index!-H[url]www.testhost.test[/url] -u /index.php

notifications_enabled 0

}

监控mysql

查看libexec目录下有没有check_mysql,如果没有,yum installedmysql-devel,在重装nagios-plugin

创建nagios专用数据库

mysql> create database nagios;

Query OK, 1 row affected (0.00 sec)

mysql> grant all on nagios.* tonagios@'localhost' identified by 'nagios';

Query OK, 0 rows affected (0.00 sec)

mysql> flush privileges;

Query OK, 0 rows affected (0.00 sec)

测试

# /usr/local/nagios/libexec/check_mysql -H localhost -u nagios-d nagios -p nagios

Uptime: 44649 Threads: 10 Questions: 152675 Slow queries:0 Opens: 292 Flush tables: 1 Open tables: 64 Queries persecond avg: 3.419

# vim commands.cfg //定义命令

在最后添加

#check mysql

define command{

command_name check_mysql

command_line $USER1$/check_mysql -H $HOSTADDRESS$ -unagiosuser -d nagios -p nagiospwd

}

# vim host.cfg //定义主机

define service{

use local-service ; Name of service template touse

host_name localhost

service_description Mysql

check_command check_mysql

notifications_enabled 0

}

报错解决办法
1.
Can't locate RRDs.pm in @INC (@INC contains: /usr/lib64/perl5/site_perl/5.8.8/x86_64-linux-thread-multi /usr/lib/perl5/site_perl/5.8.8 /usr/lib/perl5/site_perl /usr/lib64/perl5/vendor_perl/5.8.8/x86_64-linux-thread-multi /usr/lib/perl5/vendor_perl/5.8.8 /usr/lib/perl5/vendor_perl /usr/lib64/perl5/5.8.8/x86_64-linux-thread-multi /usr/lib/perl5/5.8.8 .) at /usr/local/nagios/sbin/show.cgi line 9., referer: http://jk.ylwkj.com/nagios/cgi-bin/status.cgi?host=all

#cp -rp /usr/local/rrdtool/lib/perl/5.8.8/x86_64-linux-thread-multi/ /usr/lib64/perl5/site_perl/5.8.8/