When I run last
I get something like:
user pts/0 user.domain.provider Sat Feb 25 11:44 still logged in
user pts/0 user.domain.provider Thu Feb 23 16:38 - 16:39 (00:00)
...
But if I connect to the server with sFTP, this won't show up in this list. Are there any other logs or a different command?