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Beckhoff Information System - English
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Using a single port for IIS FTP in passive mode
Daren Matthews » 2010 » July
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What is port 21 and 20 for FTP? - Quora
![What is FTP Port Number? [Default FTP Port]](https://monovm.com/uploads/tinymce/Suno/2022/04/07/624ebf90e48f4-what-is-ftp-port-1.png "What is FTP Port Number? [Default FTP Port]")
What is FTP Port Number? [Default FTP Port]
Beckhoff Information System - English
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Active vs. Passive FTP Simplified: Understanding FTP Ports | JSCAPE
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Active vs. Passive FTP Simplified: Understanding FTP Ports | JSCAPE
What is FTP server and how does it work?
FTP Port: File Transfer and Port Numbers | ExaVault Blog
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