القاعدة المعرفية

منشأ ٨ أبريل ٢٠٠٢ م
معدل ٣ يونيو ٢٠٠٧ م

The following web site will redirect you to a very well written article, which will cover the basics of "Passive vs Active" mode functions.

Active FTP vs. Passive FTP, a Definitive Explanation