cygport upload seems to ignore SSH_KEY

[Federico Kircheis]

On 05/11/2024 18.31, Federico Kircheis wrote:
> On 05/11/2024 18.29, ASSI via Cygwin wrote:
>> Federico Kircheis via Cygwin writes:
>>> I also did a chmod/chown on the file to ensure that the permission
>>> where correct.
>>> The file with the permission unchanged worked without issues when
>>> moved in ~/.ssh.
>>
>> Whatever directory that file resides in must be readable only by the
>> owner or SSH will not use it.
>>
>>
>> Regard,
>> Achim.
> 
> Mhm, that could be it.
> I did not try to modify the permission of the directory.


Nope.

Directory has permission 0700, file has permission 0600, just to be sure 
I've execute chmod on both.
I can access they key but I still experienced the issue

~~~~
$ ls -la $SSH_KEY
-rw-------+ 1 Administrators None 3357 Dec 20  2019 
/cygdrive/c/cygport-ps/ssh/id_rsa_cyg

$ ls -la /cygdrive/c/cygport-ps/ssh/
total 13
drws--S---+ 1 Administrators None    0 Jan 14  2023 .
drwxrwx---+ 1 Administrators None    0 Dec 18 10:55 ..
-rw-------+ 1 Administrators None 3357 Dec 20  2019 id_rsa_cyg
-rw-------+ 1 Administrators None  745 Jul 25  2018 id_rsa_cyg.pub
-rw-------+ 1 Administrators None  236 Mar 18  2020 known_hosts
~~~~

If I manually execute lftp


~~~~
$ lftp sftp://cygwin:@cygwin.com
lftp cygwin@cygwin.com:~> cd .
cd `.' [Connecting...]
~~~~

and hangs.

I'm not sure how to debug the issue further, and the relation between 
all tools.

~~~~
$ sftp sftp://cygwin:@cygwin.com
cygwin:@cygwin.com: Permission denied (publickey).
Connection closed
~~~~

I guess lftp/sftp does not support the variable SSH_KEY, as I get the 
same "Permission denied (publickey)." error with "ssh -v 
sftp://cygwin:@cygwin.com", and I see that there is no attempt to use my 
ssh key

Also following command does not report an error:

~~~~
sftp -i $SSH_KEY sftp://cygwin:@cygwin.com
Connection closed by 8.43.85.97 port 22
Connection closed
~~~~