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What is PASV? (4 posts)

  • Started 17 years ago by Alan
  • Latest reply 17 years ago from Scott McGuire
  • Alan Member

    Unless I check PASV in the Firewall Preferences, I cannot use Fetch 3.0.3. What exactly is PASV and does it compromise my Firewall at all? Thanks.

    Posted 17 years ago #

  • Jim Matthews Administrator

    You can read about the difference between active and passive (PASV) mode FTP here.

    PASV does not compromise your firewall. Your firewall blocks connections coming into your network from the Internet; in passive mode all your connections go out from your computer to the Internet.

    Jim Matthews
    Fetch Softworks

    [This message has been edited by ScottMcGuire (edited 06-20-2006).]

    Posted 17 years ago #

  • Alan Member

    Thanks, Jim.

    I recently had a vendor request that the PASV be turned off while uploading files to their ftp site. If I can only upload files with PASV turned on, will that mess up the transfer?

    Posted 17 years ago #

  • Scott McGuire Administrator


    If you can successfully connect to their server and upload files to their server with PASV, then it shouldn't mess up anything.

    The usual reason for making that request is that PASV doesn't work with their server - if PASV does work, you should ask them why they don't want you to use it when uploading to their site (and pass along the answer here, we'd be curious to hear it).


    Scott McGuire
    Fetch Softworks

    Posted 17 years ago #


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