Re: edit a file over two linked ssh

[suvayu ali <fatkasuvayu+linux@gmail.com>]

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Hello Michael,

On Mon, Nov 21, 2011 at 20:32, Michael Albinus <michael.albinus@gmx.de> wrote:
> You haven't said which user to apply on publichost and intgw. I assume
> publicuser and intuser. Then you could do
>

Sorry forgot to mention that. I have all the ssh settings in my
~/.ssh/config and tramp-default-method is set to ssh. So always I
connect like this: "C-x C-f /remotehost:/path/to/file".

> (add-to-list 'tramp-default-proxies-alist
>             '("remotehost.\+" nil "/ssh:intuser@intgw:"))
> (add-to-list 'tramp-default-proxies-alist
>             '("intgw" nil "/ssh:publicuser@publichost:"))
>
> Note, that the order of both forms matters. Now you can open "C-x C-f
> /remoteuser@remotehost1:/path/to/file".

This doesn't seem to work. Whenever I do this, using ps I can see tramp
tries to connect like this: ssh -l user -e none remotehost. And
obviously the connection times out.

I tried the following in a minimal Emacs 24 session.

(require 'tramp)

(setq debug-on-quit t
      tramp-default-method "ssh"
      tramp-verbose 6)

(add-to-list 'tramp-default-proxies-alist
             '("remotehost.\+" nil "/ssh:%u@intgw:"))
(add-to-list 'tramp-default-proxies-alist
             '("intgw" nil "/ssh:%u@publichost:"))

Then I tried to open a file like this: C-x C-f /user@remotehost:~/ RET

After waiting for a while I hit C-g to generate a backtrace (attached).

PS: I also tried using 'user' instead of %u without success.

Thanks,

-- 
Suvayu

Open source is the future. It sets us free.

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Debugger entered--Lisp error: (quit)
  accept-process-output(#<process *tramp/ssh user@remotehost*> 1 nil)
  byte-code("\305\b\206\x06\0\306\307\310#\211\x19\nB\x1a\311\216\312\v\b\f#+\207" [timeout -with-timeout-timer- with-timeout-timers proc timeout-msecs run-with-timer 1 nil #[nil "\300\301\211\"\207" [throw timeout] 3] ((cancel-timer -with-timeout-timer-)) accept-process-output] 5)
  tramp-accept-process-output(#<process *tramp/ssh user@remotehost*> 1)
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  byte-code("\306\b\307\310#\211\x19\nB\x1a\311\216\312\v\f\r#+\207" [timeout -with-timeout-timer- with-timeout-timers proc vec actions run-with-timer nil #[nil "\300\301\211\"\207" [throw timeout] 3] ((cancel-timer -with-timeout-timer-)) tramp-process-one-action] 5)
  byte-code("\b\203\x12\0\305\306\215\211\x19\305=?\205\x10\0	)\207\307\n\v\f#\207" [timeout -with-timeout-value- proc vec actions timeout (byte-code "\306\b\307\310#\211\x19\nB\x1a\311\216\312\v\f\r#+\207" [timeout -with-timeout-timer- with-timeout-timers proc vec actions run-with-timer nil #[nil "\300\301\211\"\207" [throw timeout] 3] ((cancel-timer -with-timeout-timer-)) tramp-process-one-action] 5) tramp-process-one-action] 5)
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" vec-or-proc default-directory] 6) ((error))] 9)) delete-process setenv "TERM" "LC_ALL" "C" "PROMPT_COMMAND" "PS1" tramp-compute-multi-hops boundp temporary-file-directory fboundp temp-directory subrp functionp getenv "TEMP" file-directory-p file-name-as-directory ...] 10)
  tramp-maybe-open-connection(["ssh" "user" "remotehost" "~/"])
  tramp-send-command(["ssh" "user" "remotehost" "~/"] "cd ~; pwd")
  tramp-sh-handle-expand-file-name("/user@remotehost:~/" nil)
  apply(tramp-sh-handle-expand-file-name ("/user@remotehost:~/" nil))
  tramp-sh-file-name-handler(expand-file-name "/user@remotehost:~/" nil)
  apply(tramp-sh-file-name-handler expand-file-name ("/user@remotehost:~/" nil))
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  completion-file-name-table("/user@remotehost:~/" file-exists-p lambda)
  completion--file-name-table("/user@remotehost:~/" file-exists-p lambda)
  complete-with-action(lambda completion--file-name-table "/user@remotehost:~/" file-exists-p)
  #[257 "\303\302\x02\300\301$\207" ["/user@remotehost:~/" file-exists-p lambda complete-with-action] 6 "\n\n(fn TABLE)"](completion--file-name-table)
  #[0 "\302\300\301@\301\211@A\240\210@!\240\207" [#[257 "\303\302\x02\300\301$\207" ["/user@remotehost:~/" file-exists-p lambda complete-with-action] 6 "\n\n(fn TABLE)"] (nil) (nil)] 5 "\n\n(fn)"]()
  funcall(#[0 "\302\300\301@\301\211@A\240\210@!\240\207" [#[257 "\303\302\x02\300\301$\207" ["/user@remotehost:~/" file-exists-p lambda complete-with-action] 6 "\n\n(fn TABLE)"] (nil) (nil)] 5 "\n\n(fn)"])
  completion--some(#[257 "\303\302\x02\300\301$\207" ["/user@remotehost:~/" file-exists-p lambda complete-with-action] 6 "\n\n(fn TABLE)"] (completion--embedded-envvar-table completion--file-name-table))
  read-file-name-internal("/user@remotehost:~/" file-exists-p lambda)
  test-completion("/user@remotehost:~/" read-file-name-internal file-exists-p)
  minibuffer-complete-and-exit()
  call-interactively(minibuffer-complete-and-exit nil nil)
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  completing-read-default("Find file: " read-file-name-internal file-exists-p confirm-after-completion "~/.emacs.d/" file-name-history "~/.emacs.d/" nil)
  completing-read("Find file: " read-file-name-internal file-exists-p confirm-after-completion "~/.emacs.d/" file-name-history "~/.emacs.d/")
  read-file-name-default("Find file: " nil "~/.emacs.d/" confirm-after-completion nil nil)
  read-file-name("Find file: " nil "~/.emacs.d/" confirm-after-completion)
  find-file-read-args("Find file: " confirm-after-completion)
  byte-code("\300\301\302 \"\207" [find-file-read-args "Find file: " confirm-nonexistent-file-or-buffer] 3)
  call-interactively(find-file nil nil)