Thomas, on 2019-06-10 : > might be an paramater has to be set if access to strech with > fish or sftp?
Good Day Thomas, Yes, by default Debian puts the following option into the configuration file /etc/ssh/sshd_config of your SSH *server* : Subsystem sftp /usr/lib/openssh/sftp-server This should be a default setting, so unless it has been removed from you SSH server for some reason, you should be able to proceed to SFTP connections already. I don't know fish well enough to tell you if another subsystem is required or not but it should definitely work with SFTP. > thomas@richard:~$ sftp -v root@192.128.1.20 > OpenSSH_6.7p1 Debian-5+deb8u7, OpenSSL 1.0.1t 3 May 2016 > debug1: Reading configuration data /etc/ssh/ssh_config > debug1: /etc/ssh/ssh_config line 19: Applying options for * > debug1: Connecting to 192.128.1.20 [192.128.1.20] port 22. I'm not quite sure to follow you well here. Are you meaning that the connection attempt is stuck at this debug message? (in which case you probably have a more general issue that should also appear when running `ssh root@192.128.1.20`) Did it crash afterwards ? Or did the connection to your SSH server actually worked ? If the subsystem sftp was absent of your configuration, you would probably have your connection attempt ending up with: debug1: Sending subsystem: sftp subsystem request failed on channel 0 Connection closed > thomas@richard:~$ vi /etc/ssh/ssh_config > Host * > # ForwardAgent no > # ForwardX11 no > # > # > # RekeyLimit 1G 1h > SendEnv LANG LC_* > HashKnownHosts yes > GSSAPIAuthentication yes > GSSAPIDelegateCredentials no Your SSH *client* configuration should not affect much your capacity to make use of your sftp client, so nothing to report here. Kind Regards, -- Étienne Mollier <etienne.moll...@mailoo.org>