Nagios+Centreon+Nrpe集成（一）

relha

1、实验环境

操作系统	debian-6.0.5-amd64-DVD-1	serverIP：192.168.113.5
Centreon	centreon-2.3.9.tar.gz	clientIP: 192.168.113.6
Nagios	nagios-3.4.1.tar.gz	源码安装
Nagios插件	nagios-plugins-1.4.16.tar.gz
Ndoutils	ndoutils-1.5.2.tar.gz
Nrpe	nrpe-2.13.tar.gz
MySQL	mysql-5.5.15.tar.gz

2、服务端在线安装内容

Program groups	Command
System base	apt-get install sudo tofrodos bsd-mailx lsb-release heirloom-mailx build-essential
Database server	apt-get install mysql-server libmysqlclient16 libmysqlclient-dev libmysql++-dev ###备注：这是在线安装内容，红色字体内容是源码安装mysql5.5.15后也需要安装的内容
WebServer and PHP5	apt-get install apache2 apache2-mpm-prefork php5 php5-mysql php-pear php5-ldap php5-snmp php5-gd
RRDTools	apt-get install rrdtool librrds-perl ### 备注：安装后路径：/usr/bin/rrdtool
Perl modules	apt-get install libconfig-inifiles-perl libcrypt-des-perl libdigest-hmac-perl libdigest-sha1-perl libgd-gd2-perl
SNMP	apt-get install snmp snmpd libnet-snmp-perl libsnmp-perl
GD-libraries and othes pack	apt-get install libgd2-xpm libgd2-xpm-dev libpng12-dev fping libmcrypt4 libldap2-dev libgnutls-dev libssl-dev smbclient libpq-dev libradiusclient-ng-dev dbi-link

3、服务端集成应用

3.1 Mysql

源码安装省略……

# insserv mysqld   //创建自启动

# insserv -d mysqld

# mysqladmin -u root password '111111'   //修改root密码

3.2 Ngigos

3.2.1安装

### 版本：nagios-3.4.1.tar.gz  

下载地址：http://www.nagios.org/download/

          http://sourceforge.net/projects/nagios/files/

# apt-get install nagios3  //在线安装

# /usr/sbin/useradd -m nagios     //以下是源码安装

# /usr/sbin/groupadd nagcmd

# /usr/sbin/usermod -G nagios,nagcmd www-data

# tar zxvf nagios-3.4.1.tar.gz

# cd nagios/

# ./configure --prefix=/usr/local/nagios --with-command-group=nagcmd --enable-nanosleep --enable-event-broker

# make all

# make install

# make install-init

# make install-commandmode

# make install-config

# make install-webconf

# htpasswd -c /usr/local/nagios/etc/htpasswd.users nadmin

# htpasswd -c /etc/nagios3/htpasswd.users nadmin   //在线安装时

//创建nogios登陆用户名和密码，apache自动安装后/usr/bin/htpasswd路径

# vim /etc/rc.local   //设置nagios自启动

/etc/init.d/nagios start

3.2.2 配置

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

  use_authentication=0   //修给cgi权限验证问题

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

//验证nagios配置文件是否正确

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

3.3 Ngigos Plugins

### 版本：nagios-plugins-1.4.16.tar.gz

下载地址：http://www.nagios.org/download/plugins/

# apt-get install nagios-plugins   //在线

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

# cd nagios-plugins-1.4.16

# ./configure --with-nagios-user=nagios --with-nagios-group=nagios --with-openssl=/usr/bin/openssl --enable-perl-modules

# make

# make install

3.4 Nrpe install for server

### 版本：nrpe-2.13.tar.gz

下载地址：http://sourceforge.net/projects/nagios/files/nrpe-2.x/

# apt-get install nagios-nrpe-server nagios-nrpe-plugin //在线安装

# tar zxvf nrpe-2.13.tar.gz //以下为源码安装

# cd nrpe-2.13

# ./configure

# make all

# make install-plugin

# make install-daemon

# make install-daemon-config

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

### 备注，在线安装目录：/etc/nagios/nrpe.cfg

server_address=192.168.113.5      //修改nrpe服务器IP地址

allowed_hosts=127.0.0.1,192.168.113.5  //允许访问的IP地址

//nrpe启动并测试是否启动成功，且加入/etc/rc.local使得开机自启动

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

# netstat -antup |grep 5666

### 或者：

# cp init-script.debian /etc/init.d/nrpe

# chmod +x /etc/init.d/nrpe    # /etc/init.d/nrpe start

//验证客户端nrpe是否正常连接，显示：NRPE v2.13 说明服务正常

# /usr/local/nagios/libexec/check_nrpe -H 192.168.113.5

# /usr/lib/nagios/plugins/check_nrpe -H 192.168.113.5  //在线安装路径

3.5 Ndoutils

3.5.1安装

### 版本：ndoutils-1.5.2.tar.gz

下载地址：http://sourceforge.net/projects/nagios/files/ndoutils-1.x/

# apt-get install ndoutils-nagios3-mysql   //在线安装

# tar zxvf ndoutils-1.5.2.tar.gz   //以下是源码安装

# cd ndoutils-1.5.2

#./configure --prefix=/usr/local/nagios/ --enable-mysql \

--with-ndo2db-user=nagios --with-ndo2db-group=nagios \

--with-mysql-lib=/usr/local/mysql/lib/mysql \

--with-mysql-inc=/usr/local/mysql/include/mysql \

# make

# make install

# cp ./config/ndo2db.cfg-sample /usr/local/nagios/etc/ndo2db.cfg

# cp ./config/ndomod.cfg-sample /usr/local/nagios/etc/ndomod.cfg

# cp src/ndomod-3x.o /usr/local/nagios/bin/

# cp src/ndo2db-3x /usr/local/nagios/bin/

# chmod 774 /usr/local/nagios/bin/ndo*

# chown nagios:nagios /usr/local/nagios/bin/ndo*

# chown nagios:nagios /usr/local/nagios/etc/ndo*

# cp ./daemon-init.in /etc/init.d/ndo2db

# chmod +x /etc/init.d/ndo2db

# insserv ndo2db

# insserv -d ndo2db

//创建数据库且导入库内容

mysql> create database nagios;   

./installdb -u root -p 111111 -h localhost -d nagios

或者：

# cd /root/ndoutils-1.5.2/db

# mysql -uroot -p nagios<./mysql.sql

3.5.2配置

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

broker_module=/usr/local/nagios/bin/ndomod-3x.o

config_file=/usr/local/nagios/etc/ndomod.cfg

### 备注：以上内容是一行连接的，中间使用空格隔开的

# vim /usr/local/nagios/etc/ndo2db.cfg

  socket_type=tcp

#socket_name=/usr/local/nagios/var/ndo.sock

db_user=root

db_pass=111111

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

  output=127.0.0.1

#output=/usr/local/nagios/var/ndo.sock

output_type=tcpsocket

#output=/usr/local/nagios/var/ndo.sock

# touch /usr/local/nagios/var/ndo2db.debug

# chown nagios:nagios /usr/local/nagios/var/ndo2db.debug

# vim /etc/init.d/ndo2db   //修改内容如下：

servicename=ndo2db

prefix=@prefix@

exec_prefix=${prefix}

#Ndo2dbBin=@bindir@/ndo2db

Ndo2dbBin=/usr/local/nagios/bin/ndo2db-3x

Ndo2dbCfgFile=@sysconfdir@/ndo2db.cfg

Ndo2dbCfgFile=/usr/local/nagios/etc/ndo2db.cfg

Ndo2dbVarDir=@localstatedir@

#Ndo2dbRunFile=$Ndo2dbVarDir/ndo2db.lock

Ndo2dbRunFile=/usr/local/nagios/var/ndo2db.lock

Ndo2dbLockDir=/var/lock/subsys

Ndo2dbLockFile=ndo2db

Ndo2dbUser=nagios

Ndo2dbGroup=nagios

//测试启动否

# /etc/init.d/ndo2db start   或者如下测试：

# /usr/local/nagios/bin/ndo2db-3x -c /usr/local/nagios/etc/ndo2db.cfg

# netstat -antup |grep 5668     //查看端口是否打开

# tail -f /usr/lcoal/nagios/var/nagios.log  //出现以下提示则启动成功

ndomod: Successfully connected to data sink.  5000 queued items to flush.

ndomod: Successfully flushed 5000 queued items to data sink.

Event broker module '/usr/local/nagios/bin/ndomod-3x.o' initialized successfully.

Finished daemonizing... (New PID=9807)

//查看数据库表nagios.nagios_hosts是否写入数据

mysql> select host_id,address,display_name from nagios_hosts;

+---------+-----------+--------------+

| host_id | address   | display_name |

+---------+-----------+--------------+

|       3 | 127.0.0.1 | localhost    |

+---------+-----------+--------------+

1 row in set (0.00 sec)

//在线安装启动/etc/init.d/ndoutils start前，需要编辑：

# vim /etc/default/ndoutils

ENABLE_NDOUTILS=1     //修改成 1

//问题解决：

问题（1）./installdb nagios数据库时报：

failed: Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2) at ./installdb line 41

解决：# mkdir -p /var/run/mysqld  

# ln -s /tmp/mysql.sock /var/run/mysqld/mysqld.sock

问题（2）./installdb nagios数据库时报：

DBD::mysql::db do failed: Table 'nagios.nagios_dbversion' doesn't exist at ./installdb line 51.

解决：可以忽略，核实nagios数据库59个表即可

问题（3）tail -f  nagios.log时，提示：

ndomod: Could not open data sink!或ndomod: Still unable to connect to data sink.

解决：按照以上操作，且进程ps均可见，则尝试重启ndo2db 或nagios或mysql

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