Membuat multi website menggunakan subdomain dan cms wordpress

Ada beberapa kelebihan membuat multi website melalui subdomain, diantaranya adalah :

1. Google sebagai search engine utama, memberlakukan subdomain berdiri sendiri sebagai entitas berbeda, sehingga sebuah situs dengan subdomain merupakan bangunan tersendiri dan mandiri.
2. Dengan subdomain, ini akan bisa meningkatkan perankingan domain utama, ataupun sebaliknya, melalui domain utama yang telah cukup dikenal, dengan sendirinya subdomain akan mudah dalam meraih perankingan di mesin pencari.
3. Dengan diberlakukannya subdomain sebagai entitas tersendiri, maka membangun out dan in bound link bisa dilakukan dengan mudah oleh pemilik domain.
4. Dengan subdomain, berarti kita tidak perlu mendaftarkan domain baru atau cukup menambahkan pada domain utama yang telah dimiliki. Ini tentunya akan menghemat biaya. Bahkan saat ini, sebuah domain utama diberi kebebasan untuk membuat 1000 sub domain.

Ada beberapa pertimbangan menggunakan wordpress sebagai multi site, diantaranya :

1. Disamping populer juga dikenal sebagai cms yang cukup ringan dan sederhana.
2. Dengan hanya memakai sebuah engine wordpress, berarti juga menghemat storage pada hosting.
3. Untuk keperluan aksesories seperti theme dan plugin, cukup sekali upload pada tempat yang sama, dan bisa digunakan secara sharing untuk setiap domain.
4. Untuk proses upgrade kita hanya sekali mengupload file-file yang dibutuhkan. Setelah itu proses instalasi upgrade bisa dilakukan untuk setiap subdomain.

Untuk memasang wordpress sebagai multi site ke banyak subdomain yang dibutuhkan hanyalah merubah file wp-config.php menjadi seperti berikut :

< ?php
// ** MySQL settings ** //

if ($_SERVER['HTTP_HOST']=="DomainAnda.com") {

define('DB_NAME', 'putyourdbnamehere'); // The name of the database
define('DB_USER', 'usernamehere'); // Your MySQL username
define('DB_PASSWORD', 'yourpasswordhere'); // ...and password
define('DB_HOST', 'localhost'); // 99% chance you won't need to change this value
define('DB_CHARSET', 'utf8');
define('DB_COLLATE', '');

// Change each KEY to a different unique phrase. You won't have to remember the phrases later,
// so make them long and complicated. You can visit http://api.wordpress.org/secret-key/1.1/
// to get keys generated for you, or just make something up. Each key should have a different phrase.
define('AUTH_KEY', 'put your unique phrase here'); // Change this to a unique phrase.
define('SECURE_AUTH_KEY', 'put your unique phrase here'); // Change this to a unique phrase.
define('LOGGED_IN_KEY', 'put your unique phrase here'); // Change this to a unique phrase.

// You can have multiple installations in one database if you give each a unique prefix
$table_prefix = 'wp_'; // Only numbers, letters, and underscores please!

// Change this to localize WordPress. A corresponding MO file for the
// chosen language must be installed to wp-content/languages.
// For example, install de.mo to wp-content/languages and set WPLANG to 'de'
// to enable German language support.
define ('WPLANG', '');

} elseif ($_SERVER['HTTP_HOST']=="subdomain.DomainAnda.com") {

define('DB_NAME', 'putyourdbnamehere'); // The name of the database
define('DB_USER', 'usernamehere'); // Your MySQL username
define('DB_PASSWORD', 'yourpasswordhere'); // ...and password
define('DB_HOST', 'localhost'); // 99% chance you won't need to change this value
define('DB_CHARSET', 'utf8');
define('DB_COLLATE', '');

// Change each KEY to a different unique phrase. You won't have to remember the phrases later,
// so make them long and complicated. You can visit http://api.wordpress.org/secret-key/1.1/
// to get keys generated for you, or just make something up. Each key should have a different phrase.
define('AUTH_KEY', 'put your unique phrase here'); // Change this to a unique phrase.
define('SECURE_AUTH_KEY', 'put your unique phrase here'); // Change this to a unique phrase.
define('LOGGED_IN_KEY', 'put your unique phrase here'); // Change this to a unique phrase.

// You can have multiple installations in one database if you give each a unique prefix
$table_prefix = 'wp_'; // Only numbers, letters, and underscores please!

// Change this to localize WordPress. A corresponding MO file for the
// chosen language must be installed to wp-content/languages.
// For example, install de.mo to wp-content/languages and set WPLANG to 'de'
// to enable German language support.
define ('WPLANG', '');

} else {

define('DB_NAME', 'putyourdbnamehere'); // The name of the database
define('DB_USER', 'usernamehere'); // Your MySQL username
define('DB_PASSWORD', 'yourpasswordhere'); // ...and password
define('DB_HOST', 'localhost'); // 99% chance you won't need to change this value
define('DB_CHARSET', 'utf8');
define('DB_COLLATE', '');

// Change each KEY to a different unique phrase. You won't have to remember the phrases later,
// so make them long and complicated. You can visit http://api.wordpress.org/secret-key/1.1/
// to get keys generated for you, or just make something up. Each key should have a different phrase.
define('AUTH_KEY', 'put your unique phrase here'); // Change this to a unique phrase.
define('SECURE_AUTH_KEY', 'put your unique phrase here'); // Change this to a unique phrase.
define('LOGGED_IN_KEY', 'put your unique phrase here'); // Change this to a unique phrase.

// You can have multiple installations in one database if you give each a unique prefix
$table_prefix = 'wp_'; // Only numbers, letters, and underscores please!

// Change this to localize WordPress. A corresponding MO file for the
// chosen language must be installed to wp-content/languages.
// For example, install de.mo to wp-content/languages and set WPLANG to 'de'
// to enable German language support.
define ('WPLANG', '');

}

/* That's all, stop editing! Happy blogging. */

if ( !defined('ABSPATH') )
define('ABSPATH', dirname(__FILE__) . '/');
require_once(ABSPATH . 'wp-settings.php');
?>

Bagi yang memiliki keterbatasan akses untuk database, bisa juga menggunakan hanya sebuah database yang di pakai bersama-sama untuk semua subdomain dengan cara menentukan table_prefix secara khusus, misalnya $table_prefix = ’sub1wp_’; untuk subdomain 1
$table_prefix = ’sub2wp_’; untuk subdomain2 dan seterusnya.

langkahnya simpel aja kok, tinggal replace wp-config.php yang ada dengan wp-config.php yang dah dimodif.

yang perlu diperhatikan hanya nama domain/sub domain sama table prefix-nya aja. sebagai gambaran saya repost wp-gonfig.php yang saya kasih tebal disesuaikan dengan nama domain atau sub domain yang dipakai.

< ?php
// ** MySQL settings ** //

if ($_SERVER['HTTP_HOST']=="DomainAnda.com") {

define('DB_NAME', 'putyourdbnamehere'); // The name of the database
define('DB_USER', 'usernamehere'); // Your MySQL username
define('DB_PASSWORD', 'yourpasswordhere'); // ...and password
define('DB_HOST', 'localhost'); // 99% chance you won't need to change this value
define('DB_CHARSET', 'utf8');
define('DB_COLLATE', '');

// Change each KEY to a different unique phrase. You won't have to remember the phrases later,
// so make them long and complicated. You can visit http://api.wordpress.org/secret-key/1.1/
// to get keys generated for you, or just make something up. Each key should have a different phrase.
define('AUTH_KEY', 'put your unique phrase here'); // Change this to a unique phrase.
define('SECURE_AUTH_KEY', 'put your unique phrase here'); // Change this to a unique phrase.
define('LOGGED_IN_KEY', 'put your unique phrase here'); // Change this to a unique phrase.

// You can have multiple installations in one database if you give each a unique prefix
$table_prefix = 'mainwp_'; // Only numbers, letters, and underscores please!

// Change this to localize WordPress. A corresponding MO file for the
// chosen language must be installed to wp-content/languages.
// For example, install de.mo to wp-content/languages and set WPLANG to 'de'
// to enable German language support.
define ('WPLANG', '');

} elseif ($_SERVER['HTTP_HOST']=="subdomain1.DomainAnda.com") {

define('DB_NAME', 'putyourdbnamehere'); // The name of the database
define('DB_USER', 'usernamehere'); // Your MySQL username
define('DB_PASSWORD', 'yourpasswordhere'); // ...and password
define('DB_HOST', 'localhost'); // 99% chance you won't need to change this value
define('DB_CHARSET', 'utf8');
define('DB_COLLATE', '');

// Change each KEY to a different unique phrase. You won't have to remember the phrases later,
// so make them long and complicated. You can visit http://api.wordpress.org/secret-key/1.1/
// to get keys generated for you, or just make something up. Each key should have a different phrase.
define('AUTH_KEY', 'put your unique phrase here'); // Change this to a unique phrase.
define('SECURE_AUTH_KEY', 'put your unique phrase here'); // Change this to a unique phrase.
define('LOGGED_IN_KEY', 'put your unique phrase here'); // Change this to a unique phrase.

// You can have multiple installations in one database if you give each a unique prefix
$table_prefix = 'sub1wp_'; // Only numbers, letters, and underscores please!

// Change this to localize WordPress. A corresponding MO file for the
// chosen language must be installed to wp-content/languages.
// For example, install de.mo to wp-content/languages and set WPLANG to 'de'
// to enable German language support.
define ('WPLANG', '');

} elseif ($_SERVER['HTTP_HOST']=="subdomain2.DomainAnda.com") {

define('DB_NAME', 'putyourdbnamehere'); // The name of the database
define('DB_USER', 'usernamehere'); // Your MySQL username
define('DB_PASSWORD', 'yourpasswordhere'); // ...and password
define('DB_HOST', 'localhost'); // 99% chance you won't need to change this value
define('DB_CHARSET', 'utf8');
define('DB_COLLATE', '');

// Change each KEY to a different unique phrase. You won't have to remember the phrases later,
// so make them long and complicated. You can visit http://api.wordpress.org/secret-key/1.1/
// to get keys generated for you, or just make something up. Each key should have a different phrase.
define('AUTH_KEY', 'put your unique phrase here'); // Change this to a unique phrase.
define('SECURE_AUTH_KEY', 'put your unique phrase here'); // Change this to a unique phrase.
define('LOGGED_IN_KEY', 'put your unique phrase here'); // Change this to a unique phrase.

// You can have multiple installations in one database if you give each a unique prefix
$table_prefix = 'sub2wp_'; // Only numbers, letters, and underscores please!

// Change this to localize WordPress. A corresponding MO file for the
// chosen language must be installed to wp-content/languages.
// For example, install de.mo to wp-content/languages and set WPLANG to 'de'
// to enable German language support.
define ('WPLANG', '');

} else {

define('DB_NAME', 'putyourdbnamehere'); // The name of the database
define('DB_USER', 'usernamehere'); // Your MySQL username
define('DB_PASSWORD', 'yourpasswordhere'); // ...and password
define('DB_HOST', 'localhost'); // 99% chance you won't need to change this value
define('DB_CHARSET', 'utf8');
define('DB_COLLATE', '');

// Change each KEY to a different unique phrase. You won't have to remember the phrases later,
// so make them long and complicated. You can visit http://api.wordpress.org/secret-key/1.1/
// to get keys generated for you, or just make something up. Each key should have a different phrase.
define('AUTH_KEY', 'put your unique phrase here'); // Change this to a unique phrase.
define('SECURE_AUTH_KEY', 'put your unique phrase here'); // Change this to a unique phrase.
define('LOGGED_IN_KEY', 'put your unique phrase here'); // Change this to a unique phrase.

// You can have multiple installations in one database if you give each a unique prefix
$table_prefix = 'wp_'; // Only numbers, letters, and underscores please!

// Change this to localize WordPress. A corresponding MO file for the
// chosen language must be installed to wp-content/languages.
// For example, install de.mo to wp-content/languages and set WPLANG to 'de'
// to enable German language support.
define ('WPLANG', '');

}

/* That's all, stop editing! Happy blogging. */

if ( !defined('ABSPATH') )
define('ABSPATH', dirname(__FILE__) . '/');
require_once(ABSPATH . 'wp-settings.php');
?>

semoga bermanfaat, jika anda sudah punya pengalaman yang lebih perihal ini, silahkan diskusikan disini.