Re: tramp and ssh-key passphrase

[jorge.alfaro-murillo@yale.edu (Jorge A. Alfaro-Murillo)]

lee writes:

> "Loris Bennett" <loris.bennett@fu-berlin.de> writes: 
>> 
>> Try setting up an SSH agent.  That way you just have to enter 
>> the passphrase once per session. 
> 
> Thanks, I tried, and it only says 
>  
> ,---- | Could not add card ".ssh/[...]": agent refused operation 
> `----

You are supposed to have a key in your .ssh, if not do something 
like

#+BEGIN_SRC shell
  cd ~/.ssh
  ssh-keygen -t rsa -b 4096 -o -a 100 
#+END_SRC

You would then have to copy the content of id_rsa.pub into 
~/.ssh/authorized_keys of the machine you want to login onto.
 
> when I try to add a key, so I killed it.  The agent had been 
> started with 
>  
> ,---- | eval $(ssh-agent) `---- 
>  
> in my .xinitrc. 
> 
> This is awful because it requires me to exit the X session to 
> get the ssh-agent to work.  I won't do much experimenting on 
> this ...

You should only start the ssh-agent once per session, that is the 
whole point of it. Actually it should start automatically.

You can try:

#+BEGIN_SRC shell
  killall ssh-agent
  eval `ssh-agent -s`
#+END_SRC

Then do

#+BEGIN_SRC shell
  ssh-add
#+END_SRC

right after you login. It will ask for the password of your id_rsa 
key, and then let you connect for the rest of your session.
 
Best,
-- 
Jorge.