Hi Michael

Thank you for the reply. The tramp in Emacs default package for Mac worked
fine in identifying the ~/.ssh/config file. Even gnu FAQ gives examples of
how to modify this file to modify tramp connections (
https://www.gnu.org/software/emacs/manual/html_node/tramp/Frequently-Asked-Questions.html
).

This is the problem that I face due to installing one of the nightly
releases (I had to do this because the default package was crashing
continuously). The main trouble is the double validation (RSA Token id
+passwd) that I need to provide to connect to server files. Tramp does not
prompt me to input the token id and fails after trying to connect with the
server.



Best Regards
Ram Balachandran
Research Assistant
Computational Material Physics Group
Dept. of Mechanical Engg, Univ of Michigan
 <http://www.linkedin.com/in/rambalachandran>
<https://twitter.com/RamBalachandran>


On Wed, Jul 2, 2014 at 10:40 AM, Michael Albinus <michael.albinus@gmx.de>
wrote:

> Ram Balachandran <janarcs@umich.edu> writes:
>
> > I'm trying to open server files through tramp where the server login. I
> > created a .ssh/config file to set ControlMaster to 'auto'. However this
> > file is not recognized by Emacs in Tramp mode which asks me to provide
> > login credentials again. The tramp mode gets hung if rsa token id is
> > required as part of login credentials.
>
> Tramp uses own settings of ControlMaster and ControlPath. If you want to
> use the default values, apply (setq tramp-use-ssh-controlmaster-options
> nil)
>
> See (info "(tramp) Frequently Asked Questions")
>
> Best regards, Michael.
>