[TUTORIAL]: Instalasi Network Monitoring System Nagios on Ubuntu 12.04

Author: Febi Gelar Ramadhan.

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Instalasi Network Monitoring System on Ubuntu 12.04

[socialring] Pertama masuk pada terminal di ubuntu untuk mulai instalasi nagios3

root@febiramadhan-Aspire-4741:/home/febiramadhan#

cek apakah packet yang dibutuhkan sudah ada atau perlu diinstalkan kembali

root@febiramadhan-Aspire-4741:/home/febiramadhan# dpkg -l |grep apache2 root@febiramadhan-Aspire-4741:/home/febiramadhan# dpkg -l |grep nagios3

Jika belum anda perlu setting /etc/apt/source.list dan masukan alamat repository

root@febiramadhan-Aspire-4741:/home/febiramadhan# nano /etc/apt/sources.list

lalu save dan mulai ketikan apt-get install nagios3 dan apt-get install apache2

root@febiramadhan-Aspire-4741:/home/febiramadhan# apt-get install apache2 root@febiramadhan-Aspire-4741:/home/febiramadhan# apt-get install nagios3

lalu mulai konfigurasi dan masuk pada file /etc/nagios3/conf.d/localhost_nagios2.cfg

# A simple configuration file for monitoring the local host # This can serve as an example for configuring other servers; # Custom services specific to this host are added here, but services # defined in nagios2-common_services.cfg may also apply. define host{ use generic-host ; Name of host template to use host_name nugroho alias LMD address 192.168.0.19 } define host{ use generic-host ; Name of host template to use host_name firman alias LMD address 192.168.0.18 } define host{ use generic-host ; Name of host template to use host_name indri alias LMD address 192.168.0.26 } # Define a service to check the disk space of the root partition # on the local machine. Warning if <20% free, critical if # <10% free space on partition. define service{ use generic-service ; Name of service template to use host_name nugroho service_description Disk Space check_command check_all_disks!20%!10% } define service{ use generic-service ; Name of service template to use host_name firman service_description Disk Space check_command check_all_disks!20%!10% } define service{ use generic-service ; Name of service template to use host_name indri service_description Disk Space check_command check_all_disks!20%!10% } # Define a service to check the number of currently logged in # users on the local machine. Warning if >20 users, critical # if >50 users. define service{ use generic-service ; Name of service template to use host_name nugroho service_description Current Users check_command check_users!20!50 } define service{ use generic-service ; Name of service template to use host_name firman service_description Current Users check_command check_users!20!50 } define service{ use generic-service ; Name of service template to use host_name indri service_description Current Users check_command check_users!20!50 } # Define a service to check the number of currently running procs # on the local machine. Warning if >250 processes, critical if # >400 processes. define service{ use generic-service ; Name of service template to use host_name nugroho service_description Total Processes check_command check_procs!250!400 } define service{ use generic-service ; Name of service template to use host_name firman service_description Total Processes check_command check_procs!250!400 } define service{ use generic-service ; Name of service template to use host_name indri service_description Total Processes check_command check_procs!250!400 } # Define a service to check the load on the local machine. define service{ use generic-service ; Name of service template to use host_name nugroho service_description Current Load check_command check_load!5.0!4.0!3.0!10.0!6.0!4.0 } define service{ use generic-service ; Name of service template to use host_name firman service_description Current Load check_command check_load!5.0!4.0!3.0!10.0!6.0!4.0 } define service{ use generic-service ; Name of service template to use host_name indri service_description Current Load check_command check_load!5.0!4.0!3.0!10.0!6.0!4.0 }

Lalu masuk pada /etc/nagios3/conf.d/hostgroup_nagios2.cfg dan masukan sintaks tambahan pada file dan mengelompokan sesuai yang kita inginkan.

# Some generic hostgroup definitions # A simple wildcard hostgroup define hostgroup { hostgroup_name all alias All Servers members nugroho,firman,indri } # A list of your Debian GNU/Linux servers define hostgroup { hostgroup_name debian-servers alias Debian GNU/Linux Servers members nugroho,firman,indri } # A list of your web servers define hostgroup { hostgroup_name http-servers alias HTTP servers members nugroho,firman,indri } # A list of your ssh-accessible servers define hostgroup { hostgroup_name ssh-servers alias SSH servers members nugroho,firman,indri } # A list of your ping servers define hostgroup { hostgroup_name ping-servers alias Ping Servers members nugroho,firman,indri }

Lalu masuk file /etc/nagios3/conf.d/services_nagios2.cfg untuk memasukan settingan dan perintah pengecekan monitoring yang akan dilakukan.

# check that web services are running define service { hostgroup_name http-servers service_description HTTP check_command check_http use generic-service notification_interval 0 ; set >0 if you want to be renotified } # check that ssh services are running define service { hostgroup_name ssh-servers service_description SSH check_command check_ssh use generic-service notification_interval 0 ; set >0 if you want to be renotified } define service { hostgroup_name ping-servers service_description PING check_command check_ping use generic-service notification_interval 0 ; set >0 if you want to be renotified }

Lalu restart paket nagios

root@febiramadhan-Aspire-4741:/home/febiramadhan# invoke-rc.d nagios3 restart

Dan terkahir jangan lupa masukan perintah memasukan password dan ussername nya

root@febiramadhan-Aspire-4741:/home/febiramadhan# htpasswd c /etc/nagios3/htpaswd.users nagiosadmin

Konfigurasi selesai, kita langsung bisa membuktikan bahwa host atau ketiga user dalam ketiga IP tersebut dapat kita monitoring Nugroho : 192.168.0.19 Firman : 192.168.0.18 Indri : 192.168.0.26

Buka web browser

masuk ke halaman http:/localhost/nagios3 dan masuk sesuai username dan password yang telah di setting.

Lalu pilih map di pojok kiri untuk melihat hasil user yang telah kita monitoring.

Dan kita lihat semua status host yang telah kita monitoring Demikian tutorial tentang Instalasi Network Monitoring System Nagios on Ubuntu 12.04 kali ini.

article by : Boksi Suryani (Febi Gelar Ramadhan) PT. Lintas Media Danawa

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