Nagios NSCA Passive Monitoring Server Setup

Nagios's rapid deployment, execution Environment initialization configuration script. Main configuration Epel Yum source, etc.

Yum install httpd nagios nagios-common nagios-devel nagios-plugins-all-y

rm-rf/etc/nagios/passwd

Htpasswd-c/etc/nagios/passwd Nagiosadmin

chmod 640/etc/nagios/passwd

chown:apache/etc/nagios/passwd

Service Nagios Checkconfig

Service Nagios Start

Chkconfig Nagios on

Configuration of the passive monitoring server:

Yum Install nsca*

Vi/etc/nagios/nsca.cfg#配置密码, IP address and other information

Pid_file=/var/run/nsca.pid

server_port=5667

server_address=192.168.10.34

Nsca_user=nagios

Nsca_group=nagios

Debug=1

Command_file=/var/spool/nagios/cmd/nagios.cmd

Alternate_dump_file=/var/spool/nagios/cmd/nsca.dump

Aggregate_writes=1

Append_to_file=0

Max_packet_age=60

password=123456

Decryption_method=1

VI contacts.cfg #修改email报警邮件地址

VI templates.cfg #增加被动监控的模板

Define Service{

Name Passive_service

Use Generic-service

Max_check_attempts 3

active_checks_enabled 0

Passive_checks_enabled 1

Normal_check_interval 2

Retry_check_interval 1

Notifications_enabled 1

Notification_interval 2

Notification_period 24x7

Contact_groups Admins

Register 0

}

VI command.cfg#增加被动监控的命令

Define Command{

Command_name Check_dummy

Command_line/usr/lib64/nagios/plugins/check_dummy $ARG 1$

}

VI localhost.cfg#增加远程客户端被动监控项目

Define Host{

Use linux-server

HOST_NAME Cacti-server

Alias Cacti-server

Address 192.168.10.33

}

Define Service{

Use Passive_service

HOST_NAME Cacti-server

Service_description Loadavg

Check_command check_dummy!3

Check_freshness 1

Freshness_threshold 120

notifications_enabled 0

}

Service Nagios Start

Service NSCA Start

Passive monitoring of client configuration:

Yum Install Nagios-plugins-all nsca-client-y

VI send_nsca.cfg

password=123456

VI nsca.sh

#!/bin/sh

Set-e

Host_name=$1

Svc_name=$2

Nsca_add=$3

If ["$ $"];then

Case "$" in

Check_load)

Check_arg= "-W 3-c 5"

;;

Check_users)

Check_arg= "-W 2-c 5"

;;

*)

Exit 0

;;

Esac

/usr/lib64/nagios/plugins/$2 $check _arg >/tmp/$2 &

Sleep 3

out= ' cat/tmp/$2 '

Output= ' echo $out |awk ' {print $} '

if [$output = = "OK"];then

Status=0

elif [$output = = "WARNING"];then

Status=1

elif [$output = = "CRITICAL"];then

status=2

Else

Status=3

Fi

echo "$host _name loadavg $status $out" |/usr/sbin/send_nsca-h $nsca _add-d ""-c/etc/nagios/send_nsca.cfg

Else

echo "Please use Bash nsca.sh hostname servicename nscaddr. recheck! "

Fi

SH nsca.sh cacti-server check_load 192.168.10.34

Vi/etc/crontab

* * * * * * root sh/etc/nagios/nsca.sh cacti-server check_load 192.168.10.34

Reference sources

Nagios NSCA Passive monitoring Server Setup