注意：两端nrpe的版本要一致，不然无法相连接
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NRPE总共由两部分组成:
check_nrpe插件,运行在监控主机上。
NRPE daemon,运行在远程的linux主机上(通常就是被监控机)
| cd nagios-plugins-1.4.15 ./configure --with-nagios-user=nagios --with-nagios-group=nagios --enable-redhat-pthread-workaround make make install |
| #yum install openssl-devel（安装 openssl包） cd nagios-nrpe_2.8.1 ./configure #默认自动添加了openssl #因为传送过程要加密,如果后面make报错,加如下参数 rpm -qa| grep ssl openssl-devel-0.9.7a-43.17.el4_6.1 rpm -ql openssl-devel-0.9.7a-43.17.el4_6.1 | more ./configure --enable-ssl --with-ssl-lib=/lib/(当然前提要有openssl) make all make install-plugin |
| vi /usr/local/nagios/etc/objects/commands.cfg #添加 #check nrpe define command{ command_name check_nrpe command_line $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$ } |
| vi /usr/local/nagios/etc/nagios.cfg #中间添加 cfg_file=/usr/local/nagios/etc/objects/mylinux.cfg |
| vi /usr/local/nagios/etc/objects/mylinux.cfg define host{ use linux-server host_name mylinux alias mylinux address 192.168.1.203(客户端IP既被监控的IP) } define service{ use generic-service host_name mylinux service_description check-swap check_command check_nrpe!check_swap } define service{ use generic-service host_name mylinux service_description check-load check_command check_nrpe!check_load } define service{ use generic-service host_name mylinux service_description check-disk check_command check_nrpe!check_had1 } define service{ use generic-service host_name mylinux service_description check-users check_command check_nrpe!check_users } define service{ use generic-service host_name mylinux service_description otal_procs check_command check_nrpe!check_total_procs } #这5个是默认的监控服务，如需自定义服务可在这里添加自定义服务可参考：http://saplingidea.javaeye.com/blog/514013 如有必要则需更改check阈值，在被监控端的/usr/local/nagios/etc/nrpe.cfg，下面会提到 |
| chkconfig --add nagios #配置机器启动时自动启动Nagios chkconfig nagios on /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg #检查Nagios配置文件 vi /etc/selinux/config #关闭SELinux SELINUX=disabled service iptables stop #关闭SELinux,或打开80,5666端口 service nagios start |
| useradd nagios passwd nagios tar -zxvf nagios-plugins-1.4.15.tar.gz cd nagios-plugins-1.4.15 ./configure --with-nagios-user=nagios --with-nagios-group=nagios --enable-redhat-pthread-workaround Make make install |
| chown –R nagios.nagios /usr/local/nagios [root@client nagios]# ll drwxr-xr-x 2 nagios nagios 4096 Jun 1 00:07 libexec drwxr-xr-x 3 nagios nagios 4096 Jun 1 00:07 share |
| yum install openssl-devel（安装 openssl包） tar -zxvf nagios-nrpe_2.8.1.orig.tar.gz cd nagios-nrpe_2.8.1 ./configure (会自动加载SSL) #如果后面make报错,加如下参数 ./configure --enable-ssl --with-ssl-lib=/usr/lib/(当然前提要有openssl) make all make install-plugin make install-daemon make install-daemon-config |
| vi /usr/local/nagios/etc/nrpe.cfg allowed_hosts=127.0.0.1,192.168.1.202 |
| /usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg –d #上面这一步在本机上可以运行，如通过ssh连接，则需用：/usr/local/nagios/bin/nrpe -d vi /etc/rc.d/rc.local /usr/local/nagios/bin/nrpe -c /usr/local/nagios/etc/nrpe.cfg –d |
| netstat -an | grep 5666 tcp 0 0 0.0.0.0:5666 0.0.0.0:* LISTEN /usr/local/nagios/libexec/check_nrpe -H 127.0.0.1 NRPE v2.8.1 #服务端测试 /usr/local/nagios/libexec/check_nrpe -H l92.168.1.203 NRPE v2.8.1 #常见错误 /usr/local/nagios/libexec/check_nrpe -H 127.0.0.1 CHECK_NRPE: Error - Could not complete SSL handshake. 配置allowed_hosts=127.0.0.1,192.168.1.202然后kill进程再重启就OK了 2./usr/local/nagios/libexec/check_nrpe -H 127.0.0.1 Connection refused by host Nrpe进程没有启动 |
| vi /usr/local/nagios/etc/nrpe.cfg command[check_users]=/usr/local/nagios/libexec/check_users -w 5 -c 10 command[check_load]=/usr/local/nagios/libexec/check_load -w 15,10,5 -c 30,25,20 command[check_hda1]=/usr/local/nagios/libexec/check_disk -w 20 -c 10 -p /dev/hda1 command[check_zombie_procs]=/usr/local/nagios/libexec/check_procs -w 5 -c 10 -s Z command[check_total_procs]=/usr/local/nagios/libexec/check_procs -w 150 -c 200 command[check_swap]=/usr/local/nagios/libexec/check_swap -w 20% -c 10% #这里就是上面提到的check阈值，如需更改，加减后面的数值即可 |
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