SSH Closes Immediately After Opening

[Ángel González]

On 30/06/16 17:12, Wallace Forman wrote:
> Embarrassing to say, I'm really not sure what constitutes a "console" 
> or "shell".

The shell is the program that reads the commands you write and executes 
them.
ssh doesn't run "cd"  It handles the secure layer, launches your shell 
and leaves you to communicate with it however you want. So for instance 
if your shell is cmd.exe you would list the contents of a folder with 
"dir", but use "ls" in bash.

If after authentication sshd is not able to run your shell (errors 
reading the user profile, the shell is not executable, etc.), then it 
closes the connection, as you report.

> To explain what does and does not seem to be working:
> (…)
>
> 2) On computer 1, sshd is running, but when connecting with "ssh 
> localhost" from the command prompt on that same computer, sshd seems 
> to be accepting the password, but closing immediately (see output in 
> previous messages).
You can verify whether it is really accepting the password by entering a 
wrong one.
>
> 4) When I try to connect from computer 2 to computer 1 (from putty or 
> command prompt), the session closes immediately, as when I try to 
> connect from Computer 1.
This is the same as #2


Regards