...pipe outputted messages... On Thu, Jun 1, 2017 at 7:54 PM, fred roller <fredrolle...@gmail.com> wrote:
> you could also try to fire Filezilla from cli with verbos turned up and > piped to a log file locally. May uncover a clue. Since you are connecting > via ssh you might try cli sftp connection as well to help isolate program > issue or system issue. > > -- Fred > > On Thu, Jun 1, 2017 at 6:13 PM, Peter Flynn <pe...@silmaril.ie> wrote: > >> On 06/01/2017 09:27 PM, Rog wrote: >> > I rely on Filezilla to transfer files to my hosting service but it no >> > longer works. It fails at the very beginning, failing to connect. Much >> > searching w/ Google turns up no answers. Nor does a tech support >> > consultation with the hosting service. The failure is NOT due to wrong >> > username or password as I can establish ssh connections from the CLI. >> >> It's worrying when this happens, but hosting services are notorious for >> changing things which don't affect Mac or Windows users, but which may >> affect Linux users. >> >> From what you quote below it looks like it's having trouble identifying >> which key exchange (kex) algorithm to use: the server wants you to use >> diffie-hellman-group-exchange-sha256 but Konqueror can only use one of >> curve25519-sha...@libssh.org >> ecdh-sha2-nistp256 >> diffie-hellman-group14-sha1 >> diffie-hellman-group1-sha1 >> This post https://ubuntuforums.org/showthread.php?t=2297006 (different >> circumstances and different software) explains how to find out what >> algorithms are supported, but it's a couple of years old. >> >> At a wild random guess the hosting company has changed things so that >> they only support diffie-hellman-group-exchange-sha256, so you'll need >> an sftp client that supports that method of key exchange. Obviously >> FileZilla doesn't. >> >> Can you try again and note the EXACT date and time, then call tech >> support and ask them to check the access logs (eg /var/log/secure) to >> find out if they can see a request coming in from your IP address, and >> being rejected. >> >> If you search Mr Google for >> filezilla diffie-hellman-group-exchange-sha256 >> you will gets lots of pages about this problem, so it seems to be well >> known. Several posts make the suggestion along the lines of: >> >> > FileZilla's SFTP support is based on PuTTY's psftp. If you change the >> > default key exchange cipher priorities in PuTTY, it should also >> > affect FileZilla. >> >> but this may only apply to Windows clients. I'm afraid I don't have a >> solution (and I just hope my own hosting provider doesn't make the same >> move, although I only use FZ very rarely, as sftp from the command line >> is fine for my own use). >> >> ///Peter >> >> >> > Konqueror also fails to connect and gives the following, more detailed >> > error: >> > >> > The requested operation could not be completed >> > >> > Details of the Request: >> > URL: sftp:// [redacted] >> > Protocol: sftp >> > Date and Time: Thursday, June 01, 2017 04:18 PM >> > Additional Information: kex error : no match for method kex algos: >> > server [diffie-hellman-group-exchange-sha256], client >> > [curve25519-sha...@libssh.org,ecdh-sha2-nistp256,diffie-hel >> lman-group14-sha1,diffie-hellman-group1-sha1] >> > Description: >> > kex error : no match for method kex algos: server >> > [diffie-hellman-group-exchange-sha256], client >> > [curve25519-sha...@libssh.org,ecdh-sha2-nistp256,diffie-hel >> lman-group14-sha1,diffie-hellman-group1-sha1] >> > >> > I note that I've gone so far as deleting all Filezilla-related files and >> > re-installing it as well as deleting my known hosts file, to no avail. >> > So I turn to this list in desperation. I would really like to continue >> > to use Filezilla because it's fast and easy. >> > >> > -- >> > Roger >> > linux....@gmail.com >> > >> > >> > >> >> -- >> xubuntu-users mailing list >> xubuntu-users@lists.ubuntu.com >> Modify settings or unsubscribe at: https://lists.ubuntu.com/mailm >> an/listinfo/xubuntu-users >> > >
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