From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Michael Albinus Newsgroups: gmane.emacs.bugs Subject: bug#20246: 25.0.50; Tramp does not show correct error message when ssh refuses to connect to host due to changed host key Date: Fri, 03 Apr 2015 12:05:19 +0200 Message-ID: <87a8ypil28.fsf@gmx.de> References: NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1428055608 18311 80.91.229.3 (3 Apr 2015 10:06:48 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 3 Apr 2015 10:06:48 +0000 (UTC) Cc: 20246@debbugs.gnu.org To: Filipp Gunbin Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Fri Apr 03 12:06:38 2015 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1YdyUm-0004qt-UA for geb-bug-gnu-emacs@m.gmane.org; Fri, 03 Apr 2015 12:06:37 +0200 Original-Received: from localhost ([::1]:33269 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YdyUm-0002E2-9K for geb-bug-gnu-emacs@m.gmane.org; Fri, 03 Apr 2015 06:06:36 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:38137) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YdyUH-0001Eq-W7 for bug-gnu-emacs@gnu.org; Fri, 03 Apr 2015 06:06:07 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YdyUE-0005jj-Pn for bug-gnu-emacs@gnu.org; Fri, 03 Apr 2015 06:06:05 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:53955) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YdyUE-0005ik-GR for bug-gnu-emacs@gnu.org; Fri, 03 Apr 2015 06:06:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1YdyUE-00022l-0t for bug-gnu-emacs@gnu.org; Fri, 03 Apr 2015 06:06:02 -0400 X-Loop: help-debbugs@gnu.org In-Reply-To: Resent-From: Michael Albinus Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Fri, 03 Apr 2015 10:06:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 20246 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 20246-submit@debbugs.gnu.org id=B20246.14280555327817 (code B ref 20246); Fri, 03 Apr 2015 10:06:01 +0000 Original-Received: (at 20246) by debbugs.gnu.org; 3 Apr 2015 10:05:32 +0000 Original-Received: from localhost ([127.0.0.1]:43731 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1YdyTj-000220-RI for submit@debbugs.gnu.org; Fri, 03 Apr 2015 06:05:32 -0400 Original-Received: from mout.gmx.net ([212.227.17.21]:64433) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1YdyTg-00021m-To for 20246@debbugs.gnu.org; Fri, 03 Apr 2015 06:05:29 -0400 Original-Received: from detlef.gmx.de ([87.146.42.125]) by mail.gmx.com (mrgmx103) with ESMTPSA (Nemesis) id 0MarAM-1YslVS1QGA-00KQBO; Fri, 03 Apr 2015 12:05:20 +0200 User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.0.50 (gnu/linux) X-Provags-ID: V03:K0:9WprNiDr8KFsVwcSBWGtKqHTjmUGAomoKEENExGZdzfJXIBISfu vJCQ937YehNw4Yoi6rn8Vtc9Rhv8RGLxpYSOLDV3c/gKMNff6zmK7JOd1flIM9jvcLdwIpK 5LXus2m1LrOcZjLlOWlTBjYHAf3u3Vp4QNqiYFRi8B854tIbnwSaYnfRWn4XzkILVYDCxNu t7PP15teQjqeZVgGzVX6w== X-UI-Out-Filterresults: notjunk:1; X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 140.186.70.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:101149 Archived-At: Filipp Gunbin writes: > When I try to connect to a host and that host's key differs from what I > have in ~/.ssh/known_hosts Tramp does not handle that correctly. > > SSH suspects an attack, but in my case it is not. > > I suppose Tramp could show the full error message emitted by ssh. > > 16:58:00.853511 tramp-process-actions (6) # > @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ > @ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @ > @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ > IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY! > Someone could be eavesdropping on you right now (man-in-the-middle attack)! > It is also possible that a host key has just been changed. > The fingerprint for the ECDSA key sent by the remote host is > SHA256:. > Please contact your system administrator. > Add correct host key in /Users/fgunbin/.ssh/known_hosts to get rid of this message. > Offending ECDSA key in /Users/fgunbin/.ssh/known_hosts:67 > ECDSA host key for has changed and you have requested strict checking. > Host key verification failed. > 16:58:00.853619 tramp-process-sentinel (5) # Sentinel called: `#*>' `exited abnormally with code 255 > ' Usually, Tramp shows the connection buffer in this error case, containing all these messages. Doesn't it happen for you? It shows this buffer for 30 seconds, or until you hit a key. > Filipp Best regards, Michael.