nagios极其简单安装配置教程

Server端安装

 

# 更新yum库
wget http://packages.sw.be/rpmforge-release/rpmforge-release-0.5.2-2.el5.rf.i386.rpm
rpm -ivh rpmforge-release-0.5.2-2.el5.rf.i386.rpm

#安装nagios
yum -y install nagios nagios-nrpe nagios-plugins nagios-plugins-nrpe check_logfiles

#添加nagios到系统自动运行
chkconfig --add nagios
chkconfig nagios on

 

    nagios相关路径:

/etc/nagios  #配置文件目录:
/etc/nagios/objects  #模板相关配置
/usr/bin/nagios # nagios程序
 

配置Apache密码访问

 

# nagiosadmin为用户名,配置这个用户名为省很多事
htpasswd -c /etc/nagios/htpasswd.users nagiosadmin

启动并测试

 

service nagios start
service httpd start
#打开浏览器,输入密码,在host里面应该有“localhost”这台机器
http://{your_ip_address}/nagios

 

添加被监控设备

安装(client端)

# 更新yum库
wget http://packages.sw.be/rpmforge-release/rpmforge-release-0.5.2-2.el5.rf.i386.rpm
rpm -ivh http://packages.sw.be/rpmforge-release/rpmforge-release-0.5.2-2.el5.rf.i386.rpm

#安装nagios
yum -y install nagios-nrpe nagios-plugins nagios-plugins-nrpe

 

 配置(client端)

 

vi /etc/nagios/nrpe.cfg
# 下列配置表示允许127.0.0.1, 192.168.121.55(Server)这两台机器访问当前机器的信息
allowed_hosts=127.0.0.1,192.168.121.55

 测试(client端)

 

#启动nrpe (Nagios Remote Plugin Executor)
service nrpe start

chkconfig --add nrpe
chkconfig nrpe on  

#查看端口是否启动
netstat -an | grep 5666

#本机测试服务是否正常
/usr/lib/nagios/plugins/check_nrpe -H 127.0.0.1 -c check_load 
/usr/lib64/nagios/plugins/check_nrpe -H 127.0.0.1 -c check_load # 64 bit 命令

#服务器端测试访问是否正常。**在Server上执行**
/usr/lib/nagios/plugins/check_nrpe -H {client_ip} -c check_load 
#64bit /usr/lib64/nagios/plugins/check_nrpe -H {client_ip} -c check_load 

 配置(Server端)

    # 创建client配置(192.168.121.4为client ip)

    vi  /etc/nagios/objects/192.168.121.4.cfg

define host{
use linux-server
host_name client-1 
alias client-1 
address  192.168.121.4
}

define service{
use generic-service
host_name client-1
service_description Current Load
check_command check_nrpe!check_load
}
  

    # 将上面配置加到系统

    vi /etc/nagios/nagios.cfg

cfg_file=/etc/nagios/objects/192.168.121.4.cfg

运行和测试(Server端)

/usr/bin/nagios -v /etc/nagios/nagios.cfg #Server端验证配置
service nagios start

FAQ:

Q: HTTP WARNING: HTTP/1.1 403Forbidden

A: nagios找不到监控文件,执行 "touch /var/www/html/index.html"

 

Q: 64bit下错误“Service check command 'check_nrpe' specified in service”

A: 发现commands.cfg里面居然没有“check_nrpe”这个命令定义,加上后OK

 

 

define command {
command_name check_nrpe
command_line $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$
}
 

 

 

附录

 

Nagios的发音:[ˈnædʒiɔs]

 

参考:

CentOS下nagios报警飞信部署四步走

http://www.elain.org/?tag=nagios

 

Nagios/监控linux客户端

http://xiwi.org/index.php/Nagios/%E7%9B%91%E6%8E%A7linux%E5%AE%A2%E6%88%B7%E7%AB%AF

 

nagios详细配置

http://lilinqing.blog.51cto.com/1122687/483604

 

ganglia和nagios监控企业集群

http://www.ibm.com/developerworks/cn/linux/l-ganglia-nagios-1/

http://www.ibm.com/developerworks/cn/linux/l-ganglia-nagios-2/

 

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