Membatasi akses dari domain SPAM
October 21 | Posted by Muhammad Yusuf E. | Security Tags: .htaccess, Apache, spam, Tip dan TrikApakah anda mempunyai website dengan engine wordpress atau phpBB atau mungkin Joomla yang menyediakan akses komentar atau posting di BBS ? Mungkin anda pernah mengalami kesulitan karena adanya SPAM komen yang nyasar di website anda ? Dalam kesempatan ini penulis ingin membagi tip bagaimana caranya memblok akses dari domain tertentu ke website anda.
Menurut penjelasan MacAfee, domain penghasil SPAM atau virus terbesar ada domain Rumania, kemudian disusul oleh domain dari Rusia, kemudian domain dari China. Menurut pengalaman penulis sendiri, memang banyak sekali SPAM komen yang datangnya dari tiga domain ini. Bagaimana cara mengatasinya ?
Ada beberapa cara, antara lain adalah dengan membatasi IP address dari ketiga negara tersebut, alias kita blok IP negara-negara tersebut. Akan tetapi apabila anda tidak mempunyai akses sebagai root, maka akan kesulitan untuk menjalankan perintah iptables atau ipchains.
Ada cara lain dan mudah untuk memblok akses dari beberapa domain yang sangat mengganggu ini, yaitu dengan .htaccess. Sudah tentu pasti anda dapat meletakkan file .htaccess di konten anda.
Nah bagaimana caranya ? Berikut adalah tip-tip yang mudah untuk melakukan setting block dari domain tertentu.
Pertama adalah buat file dengan nama .htaccess di directory anda dengan isi sebagia berikut.
order allow,deny
allow from all
Setting ini akan memberikan akses tanpa batas untuk semua domain agar bisa akses ke konten anda.
Nah sekarang, bagaimana cara membatasi domain-domain tertentu. Berikut penulis beri contoh misalnya adalah domain dari Rusia, Brazil, China dan Rumania, akan kita blok habis-habisan agar tidak dapat akses ke konten kita.
deny from .ru
deny from .br
deny from .cn
deny from .ro
Sudah barang tentu, bisa jadi domainnya adalah China tapi aksesnya dari IP address milik Amerika. Tapi tidak masalah, selama konten anda adalah konten yang tidak memerlukan akses dari orang-orang yang memakai domain Rusia atau China dsb.
Mudah bukan ? Selamat mencoba. Jangan lupa komentar anda ya !
Tags: .htaccess, Apache, spam, Tip dan Trik
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