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Is it possible to use the FTPCaller to access a FTPS server hosted on FileZilla?

  • April 20, 2020
  • 1 reply
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fmelizard
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I have a problem trying to access a FTPS server using the FTPCaller. I get an 'SSL connect error' when attempting to connect. The same process works in Filezilla. Can this be done in FME?

Best answer by trentatsafe

Currently, it is not possible to use the FTPCaller to access a FTPS server hosted on FileZilla. This is in part due to a Windows Update, that requires “Extended Master Secret” to be enabled. Unfortunately, this is only supported on OpenSSL version 1.1.0 or greater. FileZilla Server uses OpenSSL version 1.0.2.g.

 

As such, the only solution to this would be one of the following:

  1. Use a different FTPS server program. Preferably one which is more regularly updated and maintained.

  2. Configure the Filezilla Server to no longer require TLS session resumption for data connections. This will make the server less secure.

     

     

    Issue # for reference: FMEENGINE-62063
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trentatsafe
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  • April 20, 2020

Currently, it is not possible to use the FTPCaller to access a FTPS server hosted on FileZilla. This is in part due to a Windows Update, that requires “Extended Master Secret” to be enabled. Unfortunately, this is only supported on OpenSSL version 1.1.0 or greater. FileZilla Server uses OpenSSL version 1.0.2.g.

 

As such, the only solution to this would be one of the following:

  1. Use a different FTPS server program. Preferably one which is more regularly updated and maintained.

  2. Configure the Filezilla Server to no longer require TLS session resumption for data connections. This will make the server less secure.

     

     

    Issue # for reference: FMEENGINE-62063

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