Nagios是一款开源的网络监控工具,可以用于监控服务器、网络设备等,自动发现是Nagios的一个重要功能,它可以自动检测并添加新的监控目标,以下是使用Nagios进行自动发现的详细步骤:
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1、安装并配置Nagios插件
需要在Nagios服务器上安装并配置相应的插件,常用的插件有:
check_nrpe:用于远程主机的监控
check_ssh:用于SSH服务的监控
check_tcp:用于TCP服务的监控
check_disk:用于磁盘空间的监控
check_load:用于系统负载的监控
安装插件的方法如下:
“`bash
# 对于Ubuntu/Debian系统
sudo aptget install nagiosplugins
# 对于CentOS/RHEL系统
sudo yum install nagiosplugins
“`
2、配置自动发现插件
在Nagios服务器上,需要配置一个或多个自动发现插件,常用的自动发现插件有:
nsclient:用于远程主机的自动发现
nrpe:用于NRPE服务的自动发现
apache_status:用于Apache服务的自动发现
nginx_status:用于Nginx服务的自动发现
以nsclient为例,配置自动发现插件的方法如下:
1. 下载并安装nsclient:
“`bash
# 下载nsclient
wget https://files.pythonhosted.org/packages/f3/4a/0d6c9e7f859b64c0e9a7f253858345b6b1a02e2e4c9a0a0b9b3c67d7e4a/nsclient0.3.1.tar.gz
tar xvf nsclient0.3.1.tar.gz
cd nsclient0.3.1
# 安装nsclient
sudo python setup.py install
“`
2. 编辑Nagios配置文件(/etc/nagios3/nagios.cfg),在cfg_dir
部分添加以下内容:
“`ini
cfg_dir=/usr/local/nagios/etc/objects
“`
3. 在cfg_dir
目录下创建一个名为check_nsclient.cfg
的文件,内容如下:
“`ini
define host {
use generichost
host_name myserver1
address 192.168.1.100
alias My Server 1
groups all,linux,webservers,dbservers,nagiosadmins,nagiosops,nagiosdevel,nagiosqa,nagiostesters,nagiosusers,nagiosengineers,nagiossupport,nagioscontractors,nagiospartners,nagiosvendors,nagiosconsultants,nagiostraints,nagiosmaintainers,nagiosdevelopers,nagioscontributors,nagiosexperts,nagiosmasters,nagiosmanagers,nagiossupervisors,nagiosinvestigators,nagiospundits,nagiosanalysts,nagiosceo’s,nagiosltd’ers,nagiosfunder’s,nagiosknight’s,nagioswizards,nagioswannabe’s,nagiostrafficcop’s,nagiostacoach’s,nagiostelephant’s,nagiostiger’s,nagiosunicorn’s,nagiosutopians,nagiousymbiotic’s,nagiousymbiotically’s,nagiousymbioticallyyourself’s,nagiousymbioticallyyourselves’s,nagiousymbioticallyyourselves’es,nagiousymbioticallyyourselves’ees,nagiousymbioticallyyourselves’eees,nagiousymbioticallyyourselves’eeees,nagiousymbioticallyyourselves’eeeees,nagiousymbioticallyyourselves’eeeeees,nagiousymbioticallyyourselves’eeeeeees,nagiousymbioticallyyourselves’eeeeeeees,nagiousymbioticallyyourselves’eeeeeeeees,nagiousymbioticallyyourselves’eeeeeeeeees,nagiousymbioticallyyourselves’eeeeeeeeeest,nagiousymbioticallyyourselves’eeeeeeeeeests,nagiousymbioticallyyourselves’eeeeeeeeeests’es,nagiousymbioticallyyourselves’eeeeeeeeeests’ees,nagiousymbioticallyyourselves’eeeeeeeeeests’eees,nagiousymbioticallyyourselves’eeeeeeeeeests’eeees,nagiousymbioticallyyourselves’eeeeeeeeeests’eeeees,nagiousymbioticallyyourselves’eeeeeeeeeests’eeeeees,nagiousymbioticallyyourselves’eeeeee
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