nagios监控网络服务器和网络服务故障解决篇

nagios添加主机和服务可能出现的问题有如下情况：

1：配置参数出现问题，如果你没有检查配置就启动nagios，可能会启动成功，但是显示会不正常；

解决方法：调整配置参数

2：Connectionrefused

当出现这个问题的时候，我开始以为是ssh的无密码登录没有成功，但是其实我的服务器没有启动该服务造成的，启动服务即可。但是这些是有端口的服务，没有使用端口的状态任何检测？使用nrpe，ok，我们现在在服务器上安装nrpe：

一、远程主机的配置

1、安装nrpe与配置

fetchhttp://ufpr.dl.sourceforge.net/sourceforge/nagios/nrpe-2.5.2.tar.gz 
tarzxvfnrpe-2.5.2.tar.gz 
cdnrpe-2.5.2 
./configure--enable-ssl--enable-command-args 
makeall 
mkdir-p/usr/local/nagios/etc 
mkdir/usr/local/nagios/bin 
mkdir/usr/local/nagios/libexec 
pwaddgroupnagios 
pwuseraddnagios-gnagios-d/usr/local/nagios/-s/sbin/nologin 
chown-Rnagios:nagios/usr/local/nagios 
cp./sample-config/nrpe.cfg/usr/local/nagios/etc 
cpsrc/nrpe/usr/local/nagios/bin

2、启动nrpe，端口为5666

/usr/local/nagios/bin/nrpe-c/usr/local/nagios/etc/nrpe.cfg-d 
netstat-ant|grep5666 
tcp400*.5666*.*LISTEN

二、监控服务器上的配置

1、安装nrpe(主要是使用check_nrpe模块)

fetchhttp://ufpr.dl.sourceforge.net/sourceforge/nagios/nrpe-2.5.2.tar.gz 
tarzxvfnrpe-2.5.2.tar.gz 
cdnrpe-2.5.2 
./configure--enable-ssl--enable-command-args 
makeall 
cpsrc/check_nrpe/usr/local/nagios/libexec

2、nagios文件的配置

vicheckcommands.cfg

定义check_nrpe命令

#'check_nrep'commanddefinition 
definecommand{ 
command_namecheck_nrpe 
command_line/usr/local/nagios/libexec/check_nrpe-H$HOSTADDRESS$-c$ARG1$ 
}

三、上面我们已经配置了一部分参数

下面是配置的最终结果：

definehost{ 
usegeneric-host;Nameofhosttemplatetouse 
host_nametest_nrpe 
aliasclient 
address10.5.1.156 
check_commandcheck-host-alive 
max_check_attempts1 
check_period24x7 
notification_interval120 
notification_period24x7 
notification_optionsd,r 
contact_groupsadmins 
} 

#'check_load'commanddefinition 
definecommand{ 
command_namecheck_load 
command_line$USER1$/check_load-w$ARG1$-c$ARG2$ 
} 

#'check_load'commanddefinition 
definecommand{ 
command_namecheck_disk 
command_line$USER1$/check_disk-w$ARG1$-c$ARG2$ 
} 
defineservice{ 
usegeneric-service;Nameofservicetemplatetouse 
host_nametest_nrpe 
service_descriptionPING 
is_volatile0 
check_period24x7 
max_check_attempts1 
normal_check_interval1 
retry_check_interval1 
contact_groupsadmins 
notification_optionsw,u,c,r 
notification_interval960 
notification_period24x7 
check_commandcheck_ping!100.0,20%!500.0,60% 
} 

defineservice{ 
usegeneric-service;Nameofservicetemplatetouse 
host_nametest_nrpe 
service_descriptionapache 
is_volatile0 
check_period24x7 
max_check_attempts1 
normal_check_interval1 
retry_check_interval1 
contact_groupsadmins 
notification_optionsw,u,c,r 
notification_interval960 
notification_period24x7 
check_commandcheck_http!100.0,20%!500.0,60% 
} 

defineservice{ 
usegeneric-service;Nameofservicetemplatetouse 
host_nametest_nrpe 
service_descriptionmysql 
is_volatile0 
check_period24x7 
max_check_attempts1 
normal_check_interval1 
retry_check_interval1 
contact_groupsadmins 
notification_optionsw,u,c,r 
notification_interval960 
notification_period24x7 
check_commandcheck_mysql!100.0,20%!500.0,60% 
} 

defineservice{ 
usegeneric-service;Nameofservicetemplatetouse 
host_nametest_nrpe 
service_descriptionntp 
is_volatile0 
check_period24x7 
max_check_attempts1 
normal_check_interval1 
retry_check_interval1 
contact_groupsadmins 
notification_optionsw,u,c,r 
notification_interval960 
notification_period24x7 
check_commandcheck_ntp!100.0,20%!500.0,60% 
} 

defineservice{ 
usegeneric-service;Nameofservicetemplatetouse 
host_nametest_nrpe 
service_descriptionqmail_smtp 
is_volatile0 
check_period24x7 
max_check_attempts1 
normal_check_interval1 
retry_check_interval1 
contact_groupsadmins 
notification_optionsw,u,c,r 
notification_interval960 
notification_period24x7 
check_commandcheck_smtp!100.0,20%!500.0,60% 
} 

defineservice{ 
usegeneric-service;Nameofservicetemplatetouse 
host_nametest_nrpe 
service_descriptionqmail_pop3 
is_volatile0 
check_period24x7 
max_check_attempts1 
normal_check_interval1 
retry_check_interval1 
contact_groupsadmins 
notification_optionsw,u,c,r 
notification_interval960 
notification_period24x7 
check_commandcheck_pop!100.0,20%!500.0,60% 
} 

defineservice{ 
usegeneric-service;Nameofservicetemplatetouse 
host_nametest_nrpe 
service_descriptiontest_load 
is_volatile0 
check_period24x7 
max_check_attempts1 
normal_check_interval1 
retry_check_interval1 
contact_groupsadmins 
notification_optionsw,u,c,r 
notification_interval960 
notification_period24x7 
check_commandcheck_load!100.0,20%!500.0,60% 
} 

defineservice{ 
usegeneric-service;Nameofservicetemplatetouse 
host_nametest_nrpe 
service_descriptiontest_disk 
is_volatile0 
check_period24x7 
max_check_attempts1 
normal_check_interval1 
retry_check_interval1 
contact_groupsadmins 
notification_optionsw,u,c,r 
notification_interval960 
notification_period24x7 
check_commandcheck_disk!100.0,20%!500.0,60% 
}

四、检查配置参数并重启nagios

如何在nagios中使用外部命令

vi/usr/local/nagios/etc/nagios.cfg 
check_external_commands=1 

mkdir/usr/local/nagios/var/rw 
chownnagios.nagcmd/usr/local/nagios/var/rw 
chmodu+rw/usr/local/nagios/var/rw 
chmodg+rw/usr/local/nagios/var/rw 
chmodg+s/usr/local/nagios/var/rw 

svc-t/service/nagios/ 
/usr/local/apache2/bin/apachectlrestart

nagios监控网络服务器和网络服务问题的解决就结束了，有关nagios的基础内容您可以