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  • FTPS with Serv-U FTP software

    How can I get ftps to work with Serv-U FTPS? It seems to connect, but it said unable to load at the end. Anyone got this to work?

  • #2
    Hello thongtap,

    I haven't heard any reports of problems with Serv-U, but I haven't tested it myself. I'll setup Serv-U on a test server and let you know what I find out.
    Chris K Scooter Software

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    • #3
      Connecting to a test server running Serv-U 7.2 by FTPS works fine for me with BC 3.0.2.

      Please email a copy showing a connection attempt to [email protected] and we'll look into it. To save the log to a file, click the save icon on the left of the green log pane. Also, please let us know what version of Serv-U is running on the server you are trying to connect to.
      Chris K Scooter Software

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      • #4
        Did you change any setting from default?

        8/25/2008 5:00:09 PM Recv> 220 Serv-U FTP Server v7.2 ready...
        8/25/2008 5:00:09 PM Sent> AUTH TLS
        8/25/2008 5:00:09 PM Recv> 234 AUTH command OK. Initializing SSL connection.
        8/25/2008 5:00:09 PM Sent> USER tomt
        8/25/2008 5:00:09 PM Recv> 331 User name okay, need password.
        8/25/2008 5:00:09 PM Sent> PASS ********
        8/25/2008 5:00:09 PM Recv> 230 User logged in, proceed.
        8/25/2008 5:00:09 PM Sent> FEAT
        8/25/2008 5:00:09 PM Recv> 211-Extensions supported
        8/25/2008 5:00:09 PM UTF8
        8/25/2008 5:00:09 PM OPTS MODE;MLST;UTF8
        8/25/2008 5:00:09 PM CLNT
        8/25/2008 5:00:09 PM CSID Name; Version;
        8/25/2008 5:00:09 PM SITE PSWD;SET;INDEX;ZONE;CHMOD;MSG;EXEC;HELP
        8/25/2008 5:00:09 PM AUTH TLS;SSL;TLS-C;TLS-P;
        8/25/2008 5:00:09 PM PBSZ
        8/25/2008 5:00:09 PM PROT
        8/25/2008 5:00:09 PM CCC
        8/25/2008 5:00:09 PM SSCN
        8/25/2008 5:00:09 PM RMDA directoryname
        8/25/2008 5:00:09 PM DSIZ
        8/25/2008 5:00:09 PM AVBL
        8/25/2008 5:00:09 PM MODE Z
        8/25/2008 5:00:09 PM THMB BMP|JPEG|GIF|TIFF|PNG max_width max_height pathname
        8/25/2008 5:00:09 PM REST STREAM
        8/25/2008 5:00:09 PM SIZE
        8/25/2008 5:00:09 PM MDTM
        8/25/2008 5:00:09 PM MDTM YYYYMMDDHHMMSS[+-TZ];filename
        8/25/2008 5:00:09 PM XCRC filename;start;end
        8/25/2008 5:00:09 PM MLST Type*;Size*;Create;Modify*;Perm;Win32.ea;Win32.dt; Win32.dl
        8/25/2008 5:00:09 PM 211 End (for details use "HELP commmand" where command is the command of interest)
        8/25/2008 5:00:09 PM Sent> CLNT Beyond v3.0.2
        8/25/2008 5:00:09 PM Recv> 200 Noted.
        8/25/2008 5:00:09 PM Sent> TYPE I
        8/25/2008 5:00:09 PM Recv> 200 Type set to I.
        8/25/2008 5:00:09 PM Sent> SYST
        8/25/2008 5:00:09 PM Recv> 215 UNIX Type: L8
        8/25/2008 5:00:09 PM Sent> SITE ZONE
        8/25/2008 5:00:09 PM Recv> 210 UTC-420
        8/25/2008 5:00:09 PM Sent> OPTS UTF8 ON
        8/25/2008 5:00:09 PM Recv> 200 OPTS UTF8 is set to ON.
        8/25/2008 5:00:09 PM Sent> PWD
        8/25/2008 5:00:10 PM Recv> 257 "/" is current directory.
        8/25/2008 5:00:10 PM Sent> PBSZ 0
        8/25/2008 5:00:10 PM Recv> 200 PBSZ command OK. Protection buffer size set to 0.
        8/25/2008 5:00:10 PM Sent> PROT P
        8/25/2008 5:00:10 PM Recv> 200 PROT command OK. Using private data connection.
        8/25/2008 5:00:10 PM Sent> PASV
        8/25/2008 5:00:10 PM Recv> 227 Entering Passive Mode (10,10,131,195,18,55)
        8/25/2008 5:00:51 PM Unable to load ftps://[email protected]: Read timed out.

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        • #5
          Any thought on this, Chris?

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          • #6
            FWIW, I've had problems with FTPS on Serv-U connecting from a WS_FTP Pro client. Depending on what location I'm in, sometimes it works, sometimes it doesn't. For example, it will work from my home just fine, but not from certain hotel connections, or some internet cafes. I assume it's a firewall issue, possibly client-side, but haven't had the time to look in-depth at it.

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            • #7
              BC3 changed the default from active transfers to passive ones, and it looks like that's what's causing problems. In the FTP Profiles dialog, on the Connection tab, uncheck the "Passive transfers (PASV)" checkbox.
              Zoë P Scooter Software

              Comment


              • #8
                Troubleshooting FTPS Connections

                Originally posted by paule123 View Post
                FWIW, I've had problems with FTPS on Serv-U connecting from a WS_FTP Pro client. Depending on what location I'm in, sometimes it works, sometimes it doesn't. For example, it will work from my home just fine, but not from certain hotel connections, or some internet cafes. I assume it's a firewall issue, possibly client-side, but haven't had the time to look in-depth at it.
                You're probably right. Remember that FTP uses TWO types of connections: the original "control" channel from FTP client to FTP server, and a second "data" channel that gets established with each file transfer and directory listing. (Yes, directory listing - those get treated like files.)

                If you're using FTPS, it's likely that you're using PASSIVE or "firewall friendly" mode in your FTP client. (If you're not, stop right there and turn it on.)

                If that doesn't fix it, watch what happens after your PASV commands in the log. If that's where an error, hang, or time-out occurs, you can be 99% sure you have a firewall problem.

                The good news might be that Serv-U Gold also supports a single-port transfer protocols like SFTP (over SSH) and also ships with a secure web transfer interface so you can transfer things using your web browser or iPad over HTTPS.

                There's a bit more explanation of Serv-U FTP server ports here:
                http://www.rhinosoft.com/Knowledgeba...o=1044&prod=su

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