E. Instalasi dan Konfigurasi Server Sistem Kontrol dan Monitoring Menggunakan Cacti

Hits: 793
  1. Topologi Jaringan

Konfigurasi Server :
--------------------------------------------------
- Sistem Operasi        : Linux Debian 10 (Buster)
- Hostname              : ns1.sekolah.sch.id
- IP Address NIC 1      : 10.20.30.128/24
- Gateway               : 10.20.30.254
- DNS                   : 10.20.30.254
- IP Address NIC 2      : 192.168.100.1/24
- Domain                : sekolah.sch.id

- Seting DHCP Server    : Yes
- Seting DNS Server     : Yes
- Seting Web Server     : Yes
- Seting Database Server: Yes

Konfigurasi Client :
--------------------------------------------------
- Sistem Operasi        : Windows XP
- IP Address            : Assigned by DHCP

 

  1. Seting Server

    1. Konfigurasi DHCP Server

      Konfigurasi dan seting DHCP Server dapat dilihat pada artikel "Instalasi dan Konfigurasi DHCP Server" atau klik disini.

    1. Konfigurasi DNS Server

      Konfigurasi dan seting DNS Server dapat dilihat pada artikel "Instalasi dan Konfigurasi DNS Server" atau klik disini.

    1. Konfigurasi Web Server

      Konfigurasi dan seting Web Server dapat dilihat pada artikel "Instalasi dan Konfigurasi Web Server" atau klik disini

    1. Konfigurasi Database Server

      Konfigurasi dan seting Database Server dapat dilihat pada artikel "Instalasi dan Konfigurasi Database Server" atau klik disini

     

    1. Konfigurasi Server Sistem Kontrol dan Monitoring Menggunakan Cacti

      Menambahkan alamat repository debian 10 (buster)

      root@ns1:~# pico /etc/apt/sources.list

#deb cdrom:[Debian GNU/Linux 10.0.0 _Buster_ - Official amd64 DVD Binary-1 20190706-10:24]/ buster contrib main

deb [trusted=yes] http://repo.smkn1klaten.sch.id/debian/buster/amd64/ /

deb http://ftp.debian.org/debian/ buster main contrib non-free
deb-src http://ftp.debian.org/debian/ buster main contrib non-free

# buster-updates, previously known as 'volatile'
# A network mirror was not selected during install.  The following entries

      Update ke alamat repository yang baru

      root@ns1:~# apt update
Ign:1 http://repo.smkn1klaten.sch.id/debian/buster/amd64  InRelease
Ign:2 http://repo.smkn1klaten.sch.id/debian/buster/amd64  Release
Ign:3 http://repo.smkn1klaten.sch.id/debian/buster/amd64  Packages
...
Get:13 http://ftp.debian.org/debian buster/contrib Translation-en [44.2 kB]
Get:14 http://ftp.debian.org/debian buster/non-free amd64 Packages [87.7 kB]
Get:15 http://ftp.debian.org/debian buster/non-free Translation-en [88.8 kB]
Fetched 25.4 MB in 32s (784 kB/s)
Reading package lists... Done
Building dependency tree
Reading state information... Done

      Update konfigurasi BIND9

      root@ns1:~# pico /etc/bind/db.sekolah

;
; BIND data file for local loopback interface
;
$TTL    604800
@       IN      SOA     sekolah.sch.id. root.sekolah.sch.id. (
                              2         ; Serial
                         604800         ; Refresh
                          86400         ; Retry
                        2419200         ; Expire
                         604800 )       ; Negative Cache TTL
;
@       IN      NS      sekolah.sch.id.
@       IN      A       192.168.100.1
;@      IN      AAAA    ::1

ns1     IN      A       192.168.100.1
www     IN      A       192.168.100.1
cacti   IN      A       192.168.100.1

      root@ns1:~# pico /etc/bind/db.192

;
; BIND reverse data file for local loopback interface
;
$TTL    604800
@       IN      SOA     sekolah.sch.id. root.sekolah.sch.id. (
                              1         ; Serial
                         604800         ; Refresh
                          86400         ; Retry
                        2419200         ; Expire
                         604800 )       ; Negative Cache TTL
;
@       IN      NS      ns1.sekolah.sch.id.
1       IN      PTR     sekolah.sch.id.
1       IN      PTR     www.sekolah.sch.id.
1       IN      PTR     cacti.sekolah.sch.id.

      root@ns1:~# service bind9 restart

      root@ns1:~# nslookup cacti.sekolah.sch.id

Server:         127.0.0.1
Address:        127.0.0.1#53

Name:   cacti.sekolah.sch.id
Address: 192.168.100.1

       

      Tunning database sesuai kebutuhan Cacti

      Tambahkan script berikut ini di file "50-server.cnf" yaitu pada bagian [mysqld]

      max_heap_table_size = 128M
      tmp_table_size = 64M
      join_buffer_size = 64M
      innodb_file_format = Barracuda
      innodb_large_prefix = 1
      innodb_buffer_pool_size = 1GB
      innodb_buffer_pool_instances = 10
      innodb_flush_log_at_timeout = 3
      innodb_read_io_threads = 32
      innodb_write_io_threads = 16
      innodb_io_capacity = 5000
      innodb_io_capacity_max = 10000

      Masih di file "50-server.cnf" pada bagian "collation-server"

      Ubah dari
      collation-server = utf8_unicode_ci
      menjadi
      collation-server = utf8_unicode_ci

      root@ns1:~# pico /etc/mysql/mariadb.conf.d/50-server.cnf

# this is only for the mysqld standalone daemon
[mysqld]

max_heap_table_size = 128M
tmp_table_size = 64M
join_buffer_size = 64M
innodb_file_format = Barracuda
innodb_large_prefix = 1
innodb_buffer_pool_size = 1GB
innodb_buffer_pool_instances = 10
innodb_flush_log_at_timeout = 3
innodb_read_io_threads = 32
innodb_write_io_threads = 16
innodb_io_capacity = 5000
innodb_io_capacity_max = 10000

#
# * Basic Settings
#
# * Character sets
#
# MySQL/MariaDB default is Latin1, but in Debian we rather default to the full
# utf8 4-byte character set. See also client.cnf
#
character-set-server  = utf8
#collation-server      = utf8_unicode_ci
collation-server      = utf8_unicode_ci
#

      Instal Apache dan PHP Extensions

      root@ns1:~# apt install -y apache2 libapache2-mod-php php-xml php-ldap php-mbstring php-gd php-gmp php-mysql

Reading package lists... Done
Building dependency tree
Reading state information... Done
apache2 is already the newest version (2.4.38-3+deb10u4).
php-mysql is already the newest version (2:7.3+69).
The following additional packages will be installed:
  fontconfig-config fonts-dejavu-core libfontconfig1 libgd3 libjbig0 libjpeg62-turbo libtiff5 libwebp6 libxpm4 libxslt1.1
  php7.3-gd php7.3-gmp php7.3-ldap php7.3-mbstring php7.3-xml
Suggested packages:
0 upgraded, 21 newly installed, 0 to remove and 0 not upgraded.
Need to get 3,557 kB of archives.
After this operation, 9,409 kB of additional disk space will be used.
Get:1 http://repo.smkn1klaten.sch.id/debian/buster/amd64  fonts-dejavu-core 2.37-1 [1,068 kB]
Get:2 http://repo.smkn1klaten.sch.id/debian/buster/amd64  fontconfig-config 2.13.1-2 [280 kB]
...
...
Creating config file /etc/php/7.3/mods-available/gd.ini with new version
Setting up php-gd (2:7.3+69) ...
Processing triggers for libapache2-mod-php7.3 (7.3.19-1~deb10u1) ...
Processing triggers for man-db (2.8.5-2) ...
Processing triggers for libc-bin (2.28-10) ...

      Seting Zona Waktu (Timezone), Memory limit dan maksimum waktu eksekusi

      Edit pada file "/etc/php/7.3/apache2/php.ini"

      root@ns1:~# pico /etc/php/7.3/apache2/php.ini

[Date]
; Defines the default timezone used by the date functions
; http://php.net/date.timezone
;date.timezone =
date.timezone = Asia/Jakarta

; Maximum amount of memory a script may consume (128MB)
; http://php.net/memory-limit
; memory_limit = 128M
memory_limit = 512M

; Maximum execution time of each script, in seconds
; http://php.net/max-execution-time
; Note: This directive is hardcoded to 0 for the CLI SAPI
; max_execution_time = 30
max_execution_time = 60

      Lakukan hal yg sama pada file "/etc/php/7.3/cli/php.ini"

      root@ns1:~# pico /etc/php/7.3/cli/php.ini

[Date]
; Defines the default timezone used by the date functions
; http://php.net/date.timezone
;date.timezone =
date.timezone = Asia/Jakarta

; Maximum amount of memory a script may consume (128MB)
; http://php.net/memory-limit
; memory_limit = -1
memory_limit = 512M

; Maximum execution time of each script, in seconds
; http://php.net/max-execution-time
; Note: This directive is hardcoded to 0 for the CLI SAPI
; max_execution_time = 30
max_execution_time = 60

       

      Instal SNMP

      root@ns1:~# apt install -y snmp snmpd php-snmp rrdtool librrds-perl

Reading package lists... Done
Building dependency tree
Reading state information... Done
The following additional packages will be installed:
  fontconfig libcairo2 libdatrie1 libdbi1 libfribidi0 libglib2.0-0 libglib2.0-data libgraphite2-3 libharfbuzz0b
  libpango-1.0-0 libpangocairo-1.0-0 libpangoft2-1.0-0 libpixman-1-0 librrd8 libsensors-config libsensors5 libsnmp-base
  libsnmp30 libthai-data libthai0 libxcb-render0 libxcb-shm0 libxrender1 php7.3-snmp shared-mime-info xdg-user-dirs
Suggested packages:
Need to get 12.0 MB of archives.
After this operation, 34.9 MB of additional disk space will be used.
Processing triggers for libapache2-mod-php7.3 (7.3.19-1~deb10u1) ...
Processing triggers for man-db (2.8.5-2) ...
Processing triggers for libc-bin (2.28-10) ...

       

      Membuat database untuk instalasi Cacti

      Nama Database : cacti
      Nama User : cactiuser
      Password : cactipassword

       

      root@ns1:~# mysql -u root -p

Enter password: [dbroot]

Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 11
Server version: 10.3.27-MariaDB-0+deb10u1 Debian 10

Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

MariaDB [(none)]> create database cacti;
Query OK, 1 row affected (0.004 sec)

MariaDB [(none)]> GRANT ALL ON cacti.* TO cactiuser@localhost IDENTIFIED BY 'cactipassword';
Query OK, 0 rows affected (0.006 sec)

MariaDB [(none)]> flush privileges;
Query OK, 0 rows affected (0.004 sec)

MariaDB [(none)]> exit
Bye

       

      User database yang baru (cactiuser) harus memiliki akses ke Tabel mysql.time_zone_name. Untuk melakukan itu, impor mysql_test_data_timezone.sql ke database mysql dengan perintah sebagai berikut

      root@ns1:~# mysql -u root -p mysql < /usr/share/mysql/mysql_test_data_timezone.sql

Enter password: [dbroot]

       

      Kemudian login ke MySQL dan berikan permission ke pengguna "cactiuser"

      root@ns1:~# mysql -u root -p

Enter password: [dbroot]
Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 13
Server version: 10.3.27-MariaDB-0+deb10u1 Debian 10

Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

MariaDB [(none)]> GRANT SELECT ON mysql.time_zone_name TO cactiuser@localhost;
Query OK, 0 rows affected (0.000 sec)

MariaDB [(none)]> flush privileges;
Query OK, 0 rows affected (0.001 sec)

MariaDB [(none)]> exit
Bye

       

      Restart service MariaDB dan Apache

      root@ns1:~# service mariadb restart
root@ns1:~# service apache2 restart

       

      Instal Cacti

       

      Download versi terbaru paket Cacti menggunakan perintah wget.

      root@ns1:~# wget https://www.cacti.net/downloads/cacti-latest.tar.gz

--2021-01-31 13:05:32--  https://www.cacti.net/downloads/cacti-latest.tar.gz
Resolving www.cacti.net (www.cacti.net)... 172.67.196.107, 104.21.21.50, 2606:4700:3033::6815:1532, ...
Connecting to www.cacti.net (www.cacti.net)|172.67.196.107|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 29197220 (28M) [application/octet-stream]
Saving to: ‘cacti-latest.tar.gz’

cacti-latest.tar.gz            100%[===================================================>]  27.84M  3.12MB/s    in 12s

2021-01-31 13:05:55 (2.26 MB/s) - ‘cacti-latest.tar.gz’ saved [29197220/29197220]

       

      Ekstrak cacti-latest.tar.gz menggunakan perintah tar dan pindahkan hasil ekstrak ke direktori /var/www/

      root@ns1:~# tar -zxvf cacti-latest.tar.gz
...
cacti-1.2.16/formats/cacti_group.format
cacti-1.2.16/formats/cacti_monitor.format
cacti-1.2.16/formats/index.php
cacti-1.2.16/formats/default.format
cacti-1.2.16/vdef.php
cacti-1.2.16/links.php
cacti-1.2.16/user_group_admin.php

root@ns1:~# mv cacti-1* /var/www/cacti

       

      Import default data database Cacti ke database Cacti.

      root@ns1:~# mysql -u root -p cacti < /var/www/cacti/cacti.sql

Enter password: [dbroot]

       

      Edit file konfigurasi Cacti untuk menentukan jenis database, nama database, nama host MySQL, user database, dan password. Lakukan sesuai ketentuan sebelumnya

      root@ns1:~# pico /var/www/cacti/include/config.php

/*
 * Make sure these values reflect your actual database/host/user/password
 */

$database_type     = 'mysql';
$database_default  = 'cacti';
$database_hostname = 'localhost';
$database_username = 'cactiuser';
$database_password = 'cactipassword';
$database_port     = '3306';
$database_retries  = 5;
$database_ssl      = false;
$database_ssl_key  = '';
$database_ssl_cert = '';
$database_ssl_ca   = '';

/*

       

      Edit file crontab. Tambahkan entri berikut di crontab sehingga Cacti dapat melakukan polling setiap lima menit.

      root@ns1:~# pico /etc/cron.d/cacti

*/5 * * * * www-data php /var/www/cacti/poller.php > /dev/null 2>&1

       

      Konfigurasi VirtualHost untuk domain cacti.sekolah.sch.id

      root@ns1:~# pico /etc/apache2/sites-available/cacti.conf

<VirtualHost *:80>

        ServerName cacti.sekolah.sch.id
        ServerAlias cacti.sekolah.sch.id
        ServerAdmin This email address is being protected from spambots. You need JavaScript enabled to view it.
        DocumentRoot /var/www/cacti

        Alias /cacti /var/www/cacti

        <Directory /var/www/cacti>
           Options +FollowSymLinks
           AllowOverride None
        <IfVersion >= 2.3>
           Require all granted
        </IfVersion>
        <IfVersion < 2.3>
           Order Allow,Deny
           Allow from all
        </IfVersion>

        AddType application/x-httpd-php .php

        <IfModule mod_php.c>
           php_flag magic_quotes_gpc Off
           php_flag short_open_tag On
           php_flag register_globals Off
           php_flag register_argc_argv On
           php_flag track_vars On
           # this setting is necessary for some locales
           php_value mbstring.func_overload 0
           php_value include_path .
        </IfModule>

        DirectoryIndex index.php
        </Directory>

</VirtualHost>

       

      Enable VirtualHost cacti

      root@ns1:~# a2ensite cacti.conf

Enabling site cacti.
To activate the new configuration, you need to run:
  systemctl reload apache2

       

      Restart service apache2

      root@ns1:~# systemctl reload apache2

       

      Buat file log dan izinkan pengguna Apache (www-data) untuk menulis data ke direktori Cacti.

      root@ns1:~# touch /var/www/cacti/log/cacti.log
root@ns1:~# chown -R www-data:www-data /var/www/cacti/

       

       

      Setup Cacti

      Kunjungi URL berikut untuk memulai instalasi Cacti. 
      http://cacti.sekolah.sch.id


       

      Masuk ke Cacti untuk mengatur instalasi Cacti

      Username : admin
      Password : admin


       

      Kita harus mengubah password user "admin" terlebih dahulu sebelum mengatur Cacti.
      Password minimal 8 karakter terdiri dari kombinasi huruf, angka dan tanda baca.


       

      Terima perjanjian lisensi Cacti dan klik Next untuk melanjutkan.


       

      Cacti melakukan pemeriksaan pra-instalasi dan melaporkan masalah apa pun di halaman ini. Jika terdapat masalah sebaiknya silahkan diperbaiki terlebih dahulu sebelum melanjutkan ke proses penginstalan.


       

      Pilih New Primary Server sebagai jenis instalasi untuk instalasi baru dan kemudian klik Next.


       

      Wizard instalasi Cacti akan memeriksa dan melaporkan masalah permission atau hak akses direktori yang mungkin Ada pada direktori instalasi Cacti.


       

      Wizard instalasi Cacti akan menunjukkan kepada kita, apabila ada paket yang hilang, yang wajib untuk Cacti.


       

      Ceklis pada kotak "I have read this statement", kemudian klik Next


       

      Klik Next saja, karena sebelumnya kita telah mengkonfigurasi cron untuk melakukan polling setiap lima menit.


       

      Pilih semua template atau yang kita inginkan saja, lalu klik Selesai untuk menyelesaikan proses penginstalan Cacti.


       

      Klik Next untuk melanjutkan.


       

      Ceklis pada Konfirmasi Instalasi dan tekan Instal untuk memulai instalasi Cacti.


       

      Dalam beberapa menit, penginstalan Cacti akan selesai.


       

      Klik "Get Started" maka akan langsung ke dasbor Cacti. Atau jika tidak, kita dapat masuk ke Cacti dengan user dan kata password yang telah dibuat sebelumnya pada saat proses penginstalan Cacti.


       

      Halaman console/dashboard Cacti setelah kita berhasil login


       

      Kita bisa ke menu Graphs >> Default Tree >> Local Linux Machine untuk melihat grafik penggunaan server Cacti.


       

       

       

  1. Seting Client

    1. Seting SNMP di client Windows XP

      Seting IP Address


       

      Mengaktifkan DVDROM di Sistem Operasi WIndows XP


       

      Load file ISO Windows XP


       

      Klik OK


       

      Klik kanan pada icon DVDROM dan pilih Connect


       

      Klik Exit


       

      Seting Control Panel, Klik Start >> Setting >> Control Panel


       

      Klik 2x pada menu "Add or Remove Programs"


       

      Klik menu "Add/Remove Windows Components"


       

      Sorot atau pilih pada "Management and Monitoring Tools" kemudian klik "Details"


       

      Ceklis atau centang pada "Simple Network Management Protocol" lalu klik OK


       

      Klik Next untuk melanjutkan ke proses instal komponen SNMP


       

      Tunggu hingga proses instal selesai


       

      Klik Finish


       

      Seting SNMP Agent
      Klik "Start" >> "Run" >> Ketik services.msc kemudian tekan Enter atau Klik OK


       

      Klik 2x pada item "SNMP Service"


       

      Pastikan pada kotak "Startup type : Automatic"
      Pada "Service status : Started"
      Dan selanjutnya klik pada TAB "Agent"


       

      Pada menu SNMP Agent isikan :
      Contac : Alamat email Anda
      Location : Lokasi tempat host tersebut berada
      Centang pada "Physical" dan "Datalink"
      Klik Apply


       

      Pada menu Security lakukan :
      Klik "Add" kemudian ketikkan "public" tanpa tanda petik
      Ceklis pada "Accept SNMP packets from any host"
      Kemudian klik OK


       

       

    1. Seting SNMP di Linux

      Install paket SNMP, abaikan langkah ini jika sebelumnya sudah dilakukan

      root@ns1:~# apt -y install snmp snmpd

Reading package lists... Done
Building dependency tree
Reading state information... Done
snmp is already the newest version (5.7.3+dfsg-5+deb10u1).
Suggested packages:
  snmptrapd
The following NEW packages will be installed:
  snmpd
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 56.1 kB of archives.
After this operation, 143 kB of additional disk space will be used.


      Seting file snmpd.conf

      root@ns1:~# pico /etc/snmp/snmpd.conf

#  Listen for connections from the local system only
# agentAddress  udp:127.0.0.1:161
#  Listen for connections on all interfaces (both IPv4 *and* IPv6)
agentAddress udp:161,udp6:[::1]:161
#
                                                 #  Full access from the local host
#rocommunity public  localhost
rocommunity public  0.0.0.0/0

#  Note that setting these values here, results in the corresponding MIB objects being 'read-only'
#  See snmpd.conf(5) for more details
sysLocation    SMK Negeri 1 Klaten
sysContact     HYD <This email address is being protected from spambots. You need JavaScript enabled to view it.>


      Restart service snmp

      root@ns1:~# service snmpd restart


      Cek status snmp apakah sudah berajalan

      root@ns1:~# service snmpd status
● snmpd.service - Simple Network Management Protocol (SNMP) Daemon.
   Loaded: loaded (/lib/systemd/system/snmpd.service; enabled; vendor preset: enabled)
   Active: active (running) since Tue 2021-02-02 07:38:23 WIB; 1min 42s ago
  Process: 41809 ExecStartPre=/bin/mkdir -p /var/run/agentx (code=exited, status=0/SUCCESS)
 Main PID: 41810 (snmpd)
    Tasks: 1 (limit: 2331)
   Memory: 5.3M
   CGroup: /system.slice/snmpd.service
           └─41810 /usr/sbin/snmpd -Lsd -Lf /dev/null -u Debian-snmp -g Debian-snmp -I -smux mteTrigger mteTriggerConf -f -

Feb 02 07:38:23 ns1.sekolah.sch.id systemd[1]: Starting Simple Network Management Protocol (SNMP) Daemon....
Feb 02 07:38:23 ns1.sekolah.sch.id systemd[1]: Started Simple Network Management Protocol (SNMP) Daemon..
Feb 02 07:38:23 ns1.sekolah.sch.id snmpd[41810]: /etc/snmp/snmpd.conf: line 146: Warning: Unknown token: defaultMonitors.
Feb 02 07:38:23 ns1.sekolah.sch.id snmpd[41810]: /etc/snmp/snmpd.conf: line 148: Warning: Unknown token: linkUpDownNotifica
Feb 02 07:38:23 ns1.sekolah.sch.id snmpd[41810]: Turning on AgentX master support.
Feb 02 07:38:23 ns1.sekolah.sch.id snmpd[41810]: NET-SNMP version 5.7.3

     

  1. Pengujian


     


     

    Pengujian Sistem Monitoring yang dilakukan pada Host linux yaitu Server cacti (IP Address 192.168.100.1)


     


     


     


     


     


     


     


     


     


     


     

    Hasil monitoring Server cacti, setelah beberapa menit


     

     

    Pengujian Sistem Monitoring yang dilakukan pada Host Windows yaitu Client Windows XP (IP Address 192.168.100.10)


     


     


     


     


     


     

    Hasil monitoring Client windows XP, setelah beberapa menit


     

     

  1. Selesai

    Semoga bermanfaat