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Martin Vobr
Asked: 2010-09-25 08:30:32 +0800 CST

Which FTP server on Windows or Linux do support MODE C (Compression)

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can you recommend a FTP server which

  • supports MODE C (Compression)
  • and runs on Windows or Linux or BSD

Note, that MODE C is different from MODE Z (ZLIB). Most FTP servers on *nix and windows does support mode Z. However I'm aware of only one FTP server which supports MODE C and it runs only IBM Z/OS (successor of OS/390) on IBM Mainframes.

For details on MODE C see http://www.faqs.org/rfcs/rfc959.html section 3.4.3

ftp file-transfer

2 Answers

  1. I will take the time to answer this question better, although, in essence, Aaron is right. There are no FTP servers on Windows, Linux or UNIX that support MODE C. The z/OS FTP server only supports MODE C for EBCDIC transfer type.

    The main reason for this is that MODE C uses run-length encoding for compression which is archaic and not very effective, it is very inefficient with binary data and potentially increases the size of text files.

    So, to answer your question, I would recommend against using MODE C!

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  2. Best Answer

    I checked a whole bunch and I didn't find anything. I think you would have to write one yourself.

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