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As you know, FTP sends control information “out-of-band”? What does this mean

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Question added by mohamed al migawab
Date Posted: 2016/03/06
Mohammad Terkawi
by Mohammad Terkawi , Senior Software Quality Assurance Engineer , Lean Business Services

FTP uses two parallel TCP connections, one connection for sending control information (such as a request to transfer a file) and another connection for actually transferring the file. Because the control information is not sent over the same connection that the file is sent over, FTP sends control information out of band.

adil alqahtani
by adil alqahtani , Data Entry Clerk , Saudi Aramco (Saudi Geophysical)

is a characteristic of network protocols with which data control is regulated. Out-of-band control passes control data on a separate connection from main data. Protocols such as ftp use out-of-band control.

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