CentOS 6.4上通过yum安装Nagios-3.5.0

李斯特

原文见：http://sharadchhetri.com/2013/05/19/installing-nagios-3-5-0-in-centos-6-4-using-yum/#安装：rpm -ivh http://dl.fedoraproject.org/pub/epel/6/i386/epel-release-6-8.noarch.rpmyum install nagios nagios-devel nagios-plugins*gd gd-devel httpd php gcc glibc glibc-common openssl#设置密码， 默认用户名和密码都是nagiosadminhtpasswd -c /etc/nagios/passwd nagiosadmin #回车然后输入密码#检查以下配置是否一样：vi /etc/nagios/cgi.cfg=============================    # AUTHENTICATION USAGE    use_authentication=1    # SYSTEM/PROCESS INFORMATION ACCESS    authorized_for_system_information=nagiosadmin    # CONFIGURATION INFORMATION ACCESS    authorized_for_configuration_information=nagiosadmin    # SYSTEM/PROCESS COMMAND ACCESS    authorized_for_system_commands=nagiosadmin    # GLOBAL HOST/SERVICE VIEW ACCESS    authorized_for_all_services=nagiosadmin    authorized_for_all_hosts=nagiosadmin    # GLOBAL HOST/SERVICE COMMAND ACCESS    authorized_for_all_service_commands=nagiosadmin    authorized_for_all_host_commands=nagiosadmin#========================================#设置开机自启动:chkconfig --level 3 nagios onchkconfig --level 3 httpd on#启动：/etc/init.d/httpd start/etc/init.d/nagios start#注意SELINUX和IPTABLE 以及你的80端口是否被占用　　安装完成，http://ip/nagios 就能看到效果
　　下面配置要管理的节点：
#新建这个文件，里面添加要监控的机器#vi /etc/nagios/conf.d/hosts.cfg#===================define host{use linux-serverhost_name mysql-node01alias mysql-node01address 192.168.1.110  #这个IP是我mysql机器所的IP}#=================#添加被监控机器需要被监控那些项目 #vi /etc/nagios/conf.d/services.cfg#===========================define service{use generic-servicehost_name mysql-node01service_description PINGcheck_command check_ping!100.0,20%!500.0,60%}define service{use generic-servicehost_name mysql-node01service_description Current Loadcheck_command check_nrpe!check_load}define service{use generic-servicehost_name mysql-node01service_description Total Processescheck_command check_nrpe!check_users}#===========================#这里对mysql那台机器进行了3项监控: ping load totalProcesses#其中ping没用到nrpe#在末尾为nrpe添加命令#vi /etc/nagios/objects/commands.cfg#===========================define command{command_name check_nrpecommand_line $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$}#===========================#各种重启/etc/init.d/nagios restart/etc/init.d/nrpe restart/etc/init.d/httpd restart　　注意iptables，服务端和客户端均需要5666端口能被互相访问
　　参考此文配置客户端：
　　
原文见：http://sharadchhetri.com/2013/03/02/how-to-install-and-configure-nagios-nrpe-in-centos-and-red-hat/
?123456789101112131415#安装nrperpm-ivh dl.fedoraproject.org/pub/epel/6/i386/epel-release-6-8.noarch.rpm yuminstall-y nrpe nagios-plugins-all openssl #修改配置文件,先备份是好习惯vi/etc/nagios/nrpe.cfg#找到allowed_hosts=127.0.0.1，在后面加上server端的IP，这样server端才能监控这台机器，比如我加的：allowed_hosts=127.0.0.1,192.168.1.103 #开机自启chkconfig--level 3 on #启动/etc/init.d/nrpestart
　　配置完后，刷新nagios页面，就能看到mysql-node01了