Re: TRAMP sudo method not asking for password

[Marcin Borkowski]

On 2019-01-12, at 17:36, Marcin Borkowski <mbork@mbork.pl> wrote:

> Hi all,
>
> I have a very strange problem: the TRAMP sudo method stopped asking me
> for the password.  How is that possible?  sudo in terminal behaves
> normally, so it cannot be some global setting I messed up.
>
> emacs -Q does TRT, i.e., asks for the password.
>
> I understand that I can bisect my init.el, but it is almost 2 klines
> long, so before I do that, I'd like to ask - maybe someone will know the
> answer off the top of their head?
>
> Note: deleting ~/.emacs.d/tramp didn't help.

OK, so I have some further details.

Bisecting init.el didn't help.

For completeness, I have this in my `*Messages*':

--8<---------------cut here---------------start------------->8---
Tramp: Opening connection for root@tars using sudo...
Tramp: Sending command ‘exec env SHELL=/bin/sh sudo -u root -s -H -p 
P""a""s""s""w""o""r""d"":’
Tramp: Waiting for prompts from remote shell...
Tramp: Sending Password
Tramp: Waiting for prompts from remote shell...done
Tramp: Found remote shell prompt on ‘tars’
Tramp: Opening connection for root@tars using sudo...done
--8<---------------cut here---------------end--------------->8---

Using apropos-value, I found my password in `password-data'.  After
skimming through `password-cache.el', I tried `M-x password-reset' to no
avail.

I looked into ~/.emacs.d for some file/directory named `cache' or
similar, but didn't find anything.  Finally, I ran out of ideas.

I ran out of ideas.

I understand that I probably accidentally told Emacs to cache my
password.  What can I do to un-cache it?  (While convenient, it doesn't
seem very safe.)

TIA,

-- 
Marcin Borkowski
http://mbork.pl