nagios安装配置（六）：监控nginx和memcache
一. nagios监控nginx1. 下载
[*]wget http://www.monitoringexchange.org/attachment/download/Check-Plugins/Software/check_nginx-sh/check_nginx.sh -P /usr/local/nagios/libexec/
2. 修改拥有者和权限
[*]chown nagios:nagios /usr/local/nagios/libexec/check_nginx.sh && chmod a+x /usr/local/nagios/libexec/check_nginx.sh
3. nrpe配置文件添加命令
[*]vi /usr/local/nagios/etc/nrpe.cfg
[*]command=/usr/local/nagios/libexec/check_nginx.sh -H hostip -P port -p /usr/local/nginx -n nginx.pid
4. 重载nrpe
[*]service nrpe restart
5. 编辑nagios服务器文件
[*]vi /usr/local/nagios/etc/linuxjcq/services.cfg
[*]define service{
[*] use local-service
[*] host_name linuxjcq01
[*] service_description 05. The Nginx Status
[*] check_command check_nrpe!check_nginx
[*] }
6. 重载nagios
[*]service nagios restart
二. nagios监控memcached
1. 下载软件，如果以下链接不能下载，可以到http://search.cpan.org/搜索Nagios-Plugins-Memcached
[*]wget http://cpan.wenzk.com/authors/id/Z/ZI/ZIGOROU/Nagios-Plugins-Memcached-0.02.tar.gz -P /usr/local/src
2. 安装
[*]tar zxvf Nagios-Plugins-Memcached-0.02.tar.gz
[*]cd Nagios-Plugins-Memcached-0.02
[*]perl Makefile.PL
这边会列出模块的依赖安装情况，你可以根据提示选择y，进行自动安装，也可以通过自己手动安装，我使用后者
[*]*** Module::AutoInstall version 1.03
[*]*** Checking for Perl dependencies…
[*]
[*]– Carp::Clan …missing.
[*]– Cache::Memcached …missing.
[*]– FindBin …loaded. (1.47)
[*]– Nagios::Plugin …missing.
[*]– Time::HiRes …loaded. (1.9717)
[*]==> Auto-install the 3 mandatory module(s) from CPAN?
手动安装需要的模块
[*]yum install perl-Carp-Clan perl-Cache-Memcached perl-Nagios-Plugin
之后，编译安装：
[*]perl Makefile.PL
[*]make
[*]make install
3. nrpe配置文件添加命令
[*]vi /usr/local/nagios/etc/nrpe.cfg
[*]command=/usr/bin/check_memcached -H ip:port -w 3 -c 5
[*]command=/usr/bin/check_memcached -H ip:port –size-warning 80 –size-critical 90
[*]command=/usr/bin/check_memcached -H ip:port –hit-warning 40 –size-critical 20
将其中的ip和port修改为你的mecached的监听IP，port修改为端口号
重启nrpe
[*]service nrpe restart
4. nagios服务配置文件修改
[*]vi /usr/local/nagios/etc/linuxjcq/services.cfg
[*]define service{
use local-service
host_name linuxjcq01
service_description 07. Memcached Reponse
check_command check_nrpe!check_memcached_response
}
define service{
use local-service
host_name linuxjcq01
service_description 08. Memcached Size
check_command check_nrpe!check_memcached_size
}
define service{
use local-service
host_name linuxjcq01
service_description 09. Memcached Hit
check_command check_nrpe!check_memcached_hit
}
将其中的hostname修改成你配置文件中定义的主机名，重启nagios
[*]service nagios restart
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