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1.服务器端环境准备 yum update chkconfig iptables off chkconfig ip6tables off vi /etc/sysconfig/selinux SELINUX=disabled rpm -i http://mirrors.ustc.edu.cn/fedora/epel/6/x86_64/epel-release-6-7.noarch.rpm rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-* 2.软件安装 yum install nagios nagios-plugins nagios-plugins-all nagios-plugins-nrpe php php-pear mod_ssl net-snmp net-snmp-utils sendmail htpasswd /etc/nagios/passwd nagiosadmin nagios -v /etc/nagios/nagios.cfg usermod -a -G nagios apache chkconfig nagios on chkconfig httpd on chkconfig sendmail on service sendmail restart service httpd restart
3.配置
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vim /etc/nagios/nagios.cfg
cfg_dir= /etc/nagios/servers
vim /etc/nagios/objects/commands.cfg
define command{
command_name check_nrpe
command_line /usr/lib64/nagios/plugins/check_nrpe -H $HOSTADDRESS$ -c $ARG1$
}
mkdir /etc/nagios/servers
chown root:nagios /etc/nagios/servers
service nagios restart
4.客户端软件安装
yum install nagios-plugins-nrpe nagios-plugins-all nagios-nrpe openssl
5.监控路由器
cisco2811(config)# snmp-server community gnet RO cisco2811(config)# snmp-server host 192.168.0.7 gnet cisco2811(config)# snmp-server enable traps
添加监控路由器的nagios端配置文件
efine host{
use generic-switch ; Inherit default values from a template
host_name cisco2811 ; The name we're giving to this switch
alias cisco2811 ; A longer name associated with the switch
address 192.168.1.1 ; IP address of the switch
hostgroups routers ; Host groups this switch is associated with
}
define hostgroup{
hostgroup_name routers ; The name of the hostgroup
alias Network router ; Long name of the group
}
define service{
use generic-service ; Inherit values from a template
host_name cisco2811 ; The name of the host the service is associated with
service_description PING ; The service description
check_command check_ping!200.0,20%!600.0,60% ; The command used to monitor the service
normal_check_interval 5 ; Check the service every 5 minutes under normal conditions
retry_check_interval 1 ; Re-check the service every minute until its final/hard state is determined
}
define service{
use generic-service ; Inherit values from a template
host_name cisco2811
service_description Uptime
check_command check_snmp_time! -C gnet -o sysUpTime.0
}
# Monitor Port 1 status via SNMP
define service{
use generic-service ; Inherit values from a template
host_name cisco2811
service_description Port 1 Link Status
check_command check_snmp_time! -C gnet -o ifOperStatus.1 -r 1 -m RFC1213-MIB
}
define service{
use generic-service
host_name cisco2811
service_description CPU
is_volatile 0
check_period 24x7
max_check_attempts 3
retry_check_interval 1
contact_groups admins
notification_interval 120
notification_period 24x7
check_command check_cisco_cpu!gnet!60!69!70!80
}
6被监控端nrpe配置
yum install nagios-plugins-nrpe nagios-plugins-all nagios-nrpe openssl vim /etc/nagios/nrpe.cfg allowed_hosts=127.0.0.1,192.168.0.7 chown nrpe:nrpe /etc/nagios/nrpe.cfg vim /etc/services nrpe 5666/tcp # NRPE chkconfig nrpe on