NaGIOS 4: UBUNTU 20.04 instalasi NaGIOS - Revision history

Onnowpurbo: /* Conclusion */

2020-05-18T05:38:16Z

Conclusion

Onnowpurbo: /* Step 7 — Monitoring Hosts with Nagios */

2020-05-18T05:38:01Z

Step 7 — Monitoring Hosts with Nagios

Onnowpurbo: /* Step 6 — Installing Nagios Plugin & NRPE Daemon di Server yang di monitor */

2020-05-18T05:30:12Z

Step 6 — Installing Nagios Plugin & NRPE Daemon di Server yang di monitor

Onnowpurbo: /* Step 6 — Installing Nagios Plugin & NRPE Daemon di Server yang di monitor */

2020-05-18T05:28:46Z

Step 6 — Installing Nagios Plugin & NRPE Daemon di Server yang di monitor

Onnowpurbo: /* Step 6 — Installing Nagios Plugin & NRPE Daemon di Server yang di monitor */

2020-05-18T05:11:00Z

Step 6 — Installing Nagios Plugin & NRPE Daemon di Server yang di monitor

Onnowpurbo: /* Step 5 — Akses Nagios Web */

2020-05-18T05:06:34Z

Step 5 — Akses Nagios Web

Onnowpurbo: /* Step 4 — Konfigurasi Nagios server */

2020-05-18T05:03:31Z

Step 4 — Konfigurasi Nagios server

Onnowpurbo: /* Step 3 — Installing the check_nrpe Plugin */

2020-05-18T04:58:27Z

Step 3 — Installing the check_nrpe Plugin

Onnowpurbo: /* Step 2 — Installing Nagios Plugins */

2020-05-18T04:47:21Z

Step 2 — Installing Nagios Plugins

Onnowpurbo: /* Step 1 — Installing Nagios 4 */

2020-05-18T04:44:19Z

Step 1 — Installing Nagios 4

← Older revision		Revision as of 05:38, 18 May 2020
Line 359:		Line 359:

	Tunggu beberapa menit, cek kembali ke Nagios Web.		Tunggu beberapa menit, cek kembali ke Nagios Web.
−
−	~~==Conclusion==~~
−
−	~~You’ve installed Nagios on a server and configured it to monitor load average and disk usage of at least one remote machine.~~
−
−	Now that you’re monitoring a host and some of its services, you can start using Nagios to monitor your mission-critical services. You can use Nagios to set up notifications for critical events. For example, you can receive an email when your disk utilization reaches a warning or critical threshold, or a notification when your main website is down. This way you can resolve the situation promptly, or even before a problem occurs.
−
−
−
−

	==Referensi==		==Referensi==

@@ Line 306: / Line 306: @@
   NRPE v4.0.3
-==Step 7 — Monitoring Hosts with Nagios==
+==Step 7 — Monitoring Hosts dengan Nagios==
-To monitor your hosts with Nagios, you’ll add configuration files for each host specifying what you want to monitor. You can then view those hosts in the Nagios web interface.
+Tambahkan host yang akan di monitor Nagios, edit
-On your Nagios server, create a new configuration file for each of the remote hosts that you want to monitor in /usr/local/nagios/etc/servers/. Replace the highlighted word, monitored_server_host_name with the name of your host:
+ sudo vi /usr/local/nagios/etc/servers/your_monitored_server_host_name.cfg
- sudo nano /usr/local/nagios/etc/servers/your_monitored_server_host_name.cfg
+Edit file /usr/local/nagios/etc/servers/your_monitored_server_host_name.cfg
   define host {
@@ Line 328: / Line 326: @@
+  }
-With this configuration, Nagios will only tell you if the host is up or down. Let’s add some services to monitor.
+Tambahkan service yang di monitor
-  /usr/local/nagios/etc/servers/your_monitored_server_host_name.cfg
+  sudo vi /usr/local/nagios/etc/servers/your_monitored_server_host_name.cfg
   define service {
@@ Line 341: / Line 338: @@
+  }
-The use generic-service directive tells Nagios to inherit the values of a service template called generic-service, which is predefined by Nagios.
+Cek Disk
-Next, add this block to monitor disk usage:
+ sudo vi /usr/local/nagios/etc/servers/your_monitored_server_host_name.cfg
-  /usr/local/nagios/etc/servers/your_monitored_server_host_name.cfg
+  sudo vi /usr/local/nagios/etc/servers/192.168.0.155.cfg
   define service {
           use                             generic-service
           host_name                       your_monitored_server_host_name
-          service_description             /dev/vda1 free space
+          service_description             /dev/sda2 free space
-          check_command                   check_nrpe!check_vda1
+          check_command                   check_nrpe!check_sda2
+  }
-Now save and quit. Restart the Nagios service to put any changes into effect:
   sudo systemctl restart nagios
-Nagios Services Page
+Tunggu beberapa menit, cek kembali ke Nagios Web.
 ==Conclusion==

@@ Line 250: / Line 250: @@
 Akan keluar,
   Filesystem      Size  Used Avail Use% Mounted on
-  /dev/vda1        25G  1.4G   23G   6% /
+  /dev/sda2        40G  5.0G   33G  14% /
 Edit /usr/local/nagios/etc/nrpe.cfg
@@ Line 274: / Line 273: @@
   allowed_hosts=127.0.0.1,::1,your_nagios_server_private_ip
   ...
-  command[check_vda1]=/usr/local/nagios/libexec/check_disk -w 20% -c 10% -p /dev/vda1
+  command[check_sda2]=/usr/local/nagios/libexec/check_disk -w 20% -c 10% -p /dev/sda2
   ...

@@ Line 225: / Line 225: @@
   ./configure
-  make
+  sudo make
   sudo make install
@@ Line 233: / Line 233: @@
   curl -L -O https://github.com/NagiosEnterprises/nrpe/releases/download/nrpe-4.0.3/nrpe-4.0.3.tar.gz
   tar zxf nrpe-4.0.3.tar.gz
-  cd nrpe-4.0.3
+  cd /usr/local/src/nrpe-4.0.3
 Configure & Install NRPE:
   ./configure
-  make nrpe
+  sudo make nrpe
   sudo make install-daemon
   sudo make install-config

@@ Line 212: / Line 212: @@
   sudo apt update
-  sudo apt install autoconf gcc libmcrypt-dev make libssl-dev wget dc build-essential gettext
+  sudo apt -y install autoconf gcc libmcrypt-dev make libssl-dev wget dc build-essential gettext
-NRPE requires that Nagios Plugins is installed on the remote host. Let’s install this package from source.
+Download Nagios Plugins,
   cd /usr/local/src
   curl -L -O https://nagios-plugins.org/download/nagios-plugins-2.3.3.tar.gz
   tar zxf nagios-plugins-2.3.3.tar.gz
-  cd nagios-plugins-2.3.4
+  cd /usr/local/src/nagios-plugins-2.3.3
 Compile & install

@@ Line 191: / Line 191: @@
   password yangkitasetsebelumnya
-After authenticating, you will see the default Nagios home page. Click on the Hosts link in the left navigation bar to see which hosts Nagios is monitoring:
+Untuk melihat host yang di monitor, kita bisa klik menu
-Nagios Hosts Page
+  Current Status > Hosts
-As you can see, Nagios is monitoring only “localhost”, or itself.
+Terlihat default Nagios hanya memonitor localhost
 ==Step 6 — Installing Nagios Plugin & NRPE Daemon di Server yang di monitor==

@@ Line 132: / Line 132: @@
   sudo vi /usr/local/nagios/etc/nagios.cfg
-Temukan,
+Temukan di /usr/local/nagios/etc/nagios.cfg
   ...
@@ Line 145: / Line 144: @@
 Buat directory tersebut. Ini akan menyimpan file konfigurasi untuk setiap server yang kita monitor,
-  sudo mkdir -y /usr/local/nagios/etc/servers
+  sudo mkdir -p /usr/local/nagios/etc/servers
 '''Edit contact'''
@@ Line 151: / Line 150: @@
   sudo vi /usr/local/nagios/etc/objects/contacts.cfg
-Ubah email dengan email kita,
+Ubah email dengan email kita di /usr/local/nagios/etc/objects/contacts.cfg
   ...
@@ Line 171: / Line 168: @@
-  sudo vu /usr/local/nagios/etc/objects/commands.cfg
+  sudo vi /usr/local/nagios/etc/objects/commands.cfg
-Tambahkan,
+Tambahkan di /usr/local/nagios/etc/objects/commands.cfg
   ...

@@ Line 32: / Line 32: @@
   cd /usr/local/src/
   wget -O nagioscore.tar.gz https://github.com/NagiosEnterprises/nagioscore/archive/nagios-4.4.6.tar.gz
   tar xzf nagioscore.tar.gz
-  cd nagioscore-nagios-4.4.6
+  cd /usr/local/src/nagioscore-nagios-4.4.6/
 Run script & specify Apache config directory:
 Catatan: jika kita menggunakan email server postfix, ada baiknya di tambah --with-mail=/usr/sbin/sendmail
 Compile & install Nagios,
-  make all
+  cd /usr/local/src/nagioscore-nagios-4.4.6/
   sudo make install-groups-users
   sudo make install
@@ Line 93: / Line 61: @@
   sudo usermod -a -G nagios www-data
-Konfigurasi untuk user nagiosadmin (untuk user lain, nagiosadmin bisa di ganti)
+Konfigurasi & masukan _PASSWORD_ untuk user nagiosadmin (untuk user lain, nagiosadmin bisa di ganti)
   sudo htpasswd -c /usr/local/nagios/etc/htpasswd.users nagiosadmin