先讲讲Nagios Server端的基本配置：

htpasswd -c /usr/local/nagios/etc/htpasswd.users nagiosadmin

2. 1 在/usr/local/nagios/etc/objects/中定义被监听节点和需要被监听的服务，例如：/usr/local/nagios/etc/objects/system_1.cfg

## define hosts

# system_1 oam_1
define host{use                     linux-server,host-pnphost_name               system_1_oam_1address                 <ip>contact_groups     system_1_admins,systems_admins}
......
# system_1 traffic_1
define host{use                     linux-server,host-pnphost_name               system_1_traffic_1address                 <ip>contact_groups     system_1_admins,systems_admins}
......

## define services

# system_1 oam_1define service{use                      passive_service,srv-pnpservice_description      CPU_Statushost_name                system_1_oam_1contact_groups         system_1_admins,systems_admins}
define service{use                      passive_service,srv-pnpservice_description      Memory_Statushost_name                system_1_oam_1contact_groups       system_1_admins,systems_admins}
......# system_1 traffic_1
define service{use                      passive_service,srv-pnpservice_description      CPU_Statushost_name                system_1_traffic_1contact_groups      system_1_admins,systems_admins}

2.2  把定义的配置文件添加到/usr/local/nagios/etc/nagios.cfg中

cfg_file=/usr/local/nagios/etc/objects/localhost.cfgcfg_file=/usr/local/nagios/etc/objects/system_1.cfg

cfg_file=/usr/local/nagios/etc/objects/system_2.cfg 

......

nagios_user=nagios

nagios_group=nagios

lock_file=/usr/local/nagios/var/nagios.lock

status_update_interval=10

3. 对不同的系统添加系统监控管理员
3.1 /usr/local/nagios/etc/objects/contactgroups.cfg

define contactgroup{contactgroup_name       system_1_adminsalias                   system_1_adminsmembers                 oam-1,traffic-1}
......

3.2 /usr/local/nagios/etc/objects/contacts.cfg

define contact{contact_name                    oam-1                  ; Short name of useruse                             generic-contact         ; Inherit default values from generic-contact template (defined above)alias                           oam-1                  ; Full name of userservice_notification_options    c                      host_notification_options       demail                           nobody@localhost.com   ; <<***** CHANGE THIS TO YOUR EMAIL ADDRESS ******}define contact{contact_name                    traffic-1           ; Short name of useruse                             generic-contact         ; Inherit default values from generic-contact template (defined above)alias                           traffic-1           ; Full name of useremail                           nobody@localhost.com  ; <<***** CHANGE THIS TO YOUR EMAIL ADDRESS ******}
......

Note:
service_notification_options： This directive is used to define the service states for which notifications can be sent out to this contact. Valid options are a combination of one or more of the following: w = notify on WARNING service states, u = notify on UNKNOWN service states, c = notify on CRITICAL service states, r = notify on service recoveries (OK states), and f = notify when the service starts and stopsflapping. If you specify n (none) as an option, the contact will not receive any type of service notifications.
host_notification_options:This directive is used to define the host states for which notifications can be sent out to this contact. Valid options are a combination of one or more of the following:d = notify on DOWN host states,u = notify on UNREACHABLE host states,r = notify on host recoveries (UP states),f = notify when the host starts and stopsflapping, ands = send notifications when host or servicescheduled downtime starts and ends. If you specifyn (none) as an option, the contact will not receive any type of host notifications.
4. NSCA配置

define service{use                             generic-servicename                            passive_serviceactive_checks_enabled           0passive_checks_enabled          1                       # We want only passive checkingflap_detection_enabled          0register                        0                       # This is a template, not a real serviceis_volatile                     0check_period                    24x7max_check_attempts              1normal_check_interval           5retry_check_interval            1check_freshness                 0contact_groups                  system_adminscheck_command                   check_dummy!0notification_interval           120notification_period             24x7notification_options            w,u,c,rstalking_options                w,c,u}

4. 2.2 修改/usr/local/nagios/etc/commands.cfg，增加命令定义如何处理NSCA发送来的数据

# 'check_nsca' command definition
define command{command_name    check_dummycommand_line    $USER1$check_dummy$ARG1$}

Note: check_dummy很简单，处理Nagios中OK,WARNING,CRITICAL,UNKNOWN

<span style="font-size:10px;">nagios:/usr/local/nagios/etc # /usr/local/nagios/libexec/check_dummy  0
OK
nagios:/usr/local/nagios/etc # /usr/local/nagios/libexec/check_dummy  1
WARNING
nagios:/usr/local/nagios/etc # /usr/local/nagios/libexec/check_dummy  2
CRITICAL
nagios:/usr/local/nagios/etc # /usr/local/nagios/libexec/check_dummy  3
UNKNOWN</span>

4.2.3 检查/usr/local/nagios/etc/nagios.cfg已经可以处理外部NSCA发送来的数据，默认是没有问题的

accept_passive_service_checks=1
<div><pre style="color: rgb(0, 0, 0); font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;font-size:14px;">accept_passive_host_checks=1
<div><pre style="color: rgb(0, 0, 0); font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;font-size:14px;">check_external_commands=1
command_check_interval=-1
command_file=/usr/local/nagios/var/rw/nagios.cmd
<div><pre style="color: rgb(0, 0, 0); font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;font-size:14px;"><em>log_passive_checks=1
</em>

第一种方法在templates.cfg里面加入如下，只能在新窗口打开图像数据

define host { name       host-pnp action_url /pnp4nagios/index.php/graph?host=$HOSTNAME$&srv=_HOST_ register   0
}define service { name       srv-pnp action_url /pnp4nagios/index.php/graph?host=$HOSTNAME$&srv=$SERVICEDESC$ register   0
}

第二种方法可以在鼠标移到pnp4nagios图标的时候就可以开到实时图标，不过效果不是很好，按照说明加入如下：

拷贝status-header.ssi到/usr/local/nagios/share/ssi/目录下面，同时修改templates.cfg，加入如下内容：

define host { name       host-pnp action_url /pnp4nagios/index.php/graph?host=$HOSTNAME$&srv=_HOST_' class='tips' rel='/pnp4nagios/index.php/popup?host=$HOSTNAME$&srv=_HOST_ register   0
}define service { name       srv-pnp action_url /pnp4nagios/index.php/graph?host=$HOSTNAME$&srv=$SERVICEDESC$' class='tips' rel='/pnp4nagios/index.php/popup?host=$HOSTNAME$&srv=$SERVICEDESC$ register   0
}