If a client encounters problems when connecting to your FTP server, one of the first things you might want to check is your FTP data transfer mode. Depending on specific network configurations, this mode should be active or passive. In this post, you’ll understand the salient points of active and passive FTP and learn how to avoid associated connectivity issues.
Before discussing which mode is best for what scenario, let’s first cover one crucial topic: the two channels of an FTP session.
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