Centos+Nagios+NRPE+pnp4nagios

yinian

　　前一段工作需要配置一台监控服务器，就一路安装了Nagios. 为了避免我丢失 安装时候的记录，就先放在这里。事情太多，只能慢慢整理。我使用的是Centos6.2 mini安装的，在Nagios过程中需要安装的组件
perl wget make mailx sendmail vim xinetd  openssl-devel
　　具体安装nagios的方法，在网上有说明文档http://nagios-cn.sourceforge.net/nagios-cn/
　　其他网站上也有很多的安装手册，不再列出
　　
安装 pnp4nagios-0.6.6 的时候出现   configure: error: Perl Module Time::HiRes not available
　　yum install perl-Time-HiRes 即可解决
　　下面是wget 地址，nagiso-3.3.1和nagios-plugins-1.4.15要安装的。

　　http://prdownloads.sourceforge.net/sourceforge/nagios/nagios-3.3.1.tar.gz
　　./configure --with-command-group=nagcmd
http://prdownloads.sourceforge.net/sourceforge/nagiosplug/nagios-plugins-1.4.15.tar.gz
　　http://prdownloads.sourceforge.net/sourceforge/nagios/nrpe-2.13.tar.gz
　　http://caspian.dotconf.net/menu/Software/SendEmail/sendEmail-v1.56.tar.gz
　　给nagios安装nrpe插件报错： checking for SSL headers... configure: error: Cannot find ssl headers

　　安装nrpe，编译的时候提示以下信息
checking for SSL headers... configure: error: Cannot find ssl headers
原因是缺少openssl-devel包，
yum -y install openssl-devel
问题解决！
　　
http://sourceforge.net/projects/pnp4nagios/       pnp4nagios
http://docs.pnp4nagios.org/pnp-0.6/doc_completel
　　http://docs.pnp4nagios.org/pnp-0.6/install
重启httpd
　　我使用的是sendemail实现发送警告邮件的功能
　　具体方法可参考http://linuxjcq.blog.运维网.com/3042600/717918
　　安装nrpe的方法文档http://nagios.sourceforge.net/docs/nrpe/NRPE.pdf
　　至于以下配置，在各个配置手册里都有详细的说明，保留只是为了记录我安装过程中的记录而已。
define host{
host_name Nagios-Server
alias Nagios Server
address 192.168.140.128
check_command check-host-alive
check_interval 5
retry_interval 1
max_check_attempts 5
check_period 24x7
process_perf_data 0
retain_nonstatus_information 0
contact_groups sagroup
notification_interval 30
notification_period 24x7
notification_options d,u,r
}
define host{
host_name Nagios-Client
alias Nagios Client
address 192.168.140.129
check_command check-host-alive
check_interval 5
retry_interval 1
max_check_attempts 5
check_period 24x7
process_perf_data 0
retain_nonstatus_information 0
contact_groups sagroup
notification_interval 30
notification_period 24x7
notification_options d,u,r
}
　　
define hostgroup {
hostgroup_name Nagios-Example
alias Nagios Example
members Nagios-Server,Nagios-Clientesx
}
　　define service {
host_name Nagios-Server
service_description check-host-alive
check_period 24x7
max_check_attempts 4
normal_check_interval 3
retry_check_interval 2
contact_groups sagroup
notification_interval 10
notification_period 24x7
notification_options w,u,c,r
check_command check-host-alive
}
define service {
host_name Nagios-Clientesx
service_description check-host-alive
check_period 24x7
max_check_attempts 4
normal_check_interval 3
retry_check_interval 2
contact_groups sagroup
notification_interval 10
notification_period 24x7
notification_options w,u,c,r
check_command check-host-alive
}
　　define servicegroup{
servicegroup_name Host-Alive
alias Host Alive
members Nagios-Server,check-host-alive,Nagios-Clientesx,check-host-alive
}
　　
#check nrpe
define command{
command_name check_nrpe
command_line $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$
}
　　
define host{
host_name Nagios-Server
alias Nagios Server
address 192.168.140.128
check_command check-host-alive
check_interval 5
retry_interval 1
max_check_attempts 5
check_period 24x7
process_perf_data 0
retain_nonstatus_information 0
contact_groups sagroup
notification_interval 30
notification_period 24x7
notification_options d,u,r
　　}
define host{
host_name Nagios-Client
alias Nagios Client
address 192.168.140.129
check_command check-host-alive
check_interval 5
retry_interval 1
max_check_attempts 5
check_period 24x7
process_perf_data 0
retain_nonstatus_information 0
contact_groups sagroup
notification_interval 30
notification_period 24x7
notification_options d,u,r
}
　　define hostgroup {
hostgroup_name Nagios-Example
alias Nagios Example
members Nagios-Server,Nagios-Client
}
　　
define service {
host_name Nagios-Server
service_description check-host-alive
check_period 24x7
max_check_attempts 4
normal_check_interval 3
retry_check_interval 2
contact_groups sagroup
notification_interval 10
notification_period 24x7
notification_options w,u,c,r
check_command check-host-alive
}
define service {
host_name Nagios-Client
service_description check-host-alive
check_period 24x7
max_check_attempts 4
normal_check_interval 3
retry_check_interval 2
contact_groups sagroup
notification_interval 10
notification_period 24x7
notification_options w,u,c,r
check_command check-host-alive
}
　　define servicegroup{
servicegroup_name Host-Alive
alias Host Alive
members Nagios-Server,check-host-alive,Nagios-Client,check-host-alive
}
　　iptables -I RH-Firewall-1-INPUT -p tcp -m tcp –dport 5666 -j ACCEPT
　　define host{
host_name Nagios-Server
alias Nagios Server
address 192.168.140.128
check_command check-host-alive
check_interval 5
retry_interval 1
max_check_attempts 5
check_period 24x7
process_perf_data 0
retain_nonstatus_information 0
contact_groups sagroup
notification_interval 30
notification_period 24x7
notification_options d,u,r