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Re: Using tramp to connect to a remote emacs session
From: |
Anselm Helbig |
Subject: |
Re: Using tramp to connect to a remote emacs session |
Date: |
Thu, 03 Sep 2009 18:34:50 +0200 |
At Thu, 03 Sep 2009 09:06:16 -0700,
Suvayu Ali <fatkasuvayu+linux@gmail.com> wrote:
>
> Hi Peter,
>
> On Thursday 03 September 2009 01:02 AM, Peter Dyballa wrote:
> >
> > Am 03.09.2009 um 01:06 schrieb Suvayu Ali:
> >
> >> So far only reference I found was,
> >>
> >>> Using emacsclient to make a new frame of a remote Emacs 22 on a local
> >>> display
> >>> ssh remote_host -f emacsclient --eval ââ(make-frame-on-display
> >>> \â$DISPLAY\â)ââ
> >>
> >> in the emacswiki[1]. Firstly I don't understand how this works, and
> >> blindly copy-pasting this to the terminal didn't work either. Some
> >> help would be greatly appreciated. :)
> >
> >
> > Ssh opens a connection to remote_host and logs you in. The option -f
> > puts ssh into the background allowing to launch an X client. This one is
> > emacsclient, which is asked to evaluate some Lisp. This Lisp code is
> > make-frame-on-display, which makes GNU Emacs open (create) a new frame
> > on the specified screen as given by the environment variable DISPLAY. On
> > the remote host DISPLAY should point to your local screen and its X
> > server. So the remote GNU Emacs daemon or server will open a frame as an
> > X client of your local display's X server and communicate with it via
> > the SSH tunnel.
> >
> >
> > If this does not work you can start to debug ssh, but particularly allow
> > (trusted) X11 forwarding in the configuration of the SSH server on the
> > remote host. Your local X server must be informed to accept connections
> > from the remote host.
> >
>
> Thanks for the very clear explanation Pete. :) I had a hunch it is
> something like X-forwarding. I don't really like to do X-forwarding, the
> interface is usually very unresponsive. I would rather go with `emacs -nw'.
If you want to connect to a remote emacs but don't want to do X
forwarding, then you can do either
- start emacs with the --daemon option on the remote host; you can
now connect to the running emacs instance with `emacsclient -t'
which will give you an emacs terminal frame. Which will, of
course, work over ssh as well. You can still get a X frame if you
like by not using -t. This requires Emacs 23 to work.
- the obvious solution: use GNU screen or a similar tool (dtach,
tmux, ...), start your console mode emacs in there and reconnect
as necessary. Works with any version of emacs, obviously.
HTH,
Anselm
--
Anselm Helbig
mailto:anselm.helbig+news2009@googlemail.com
Re: Using tramp to connect to a remote emacs session, Michael Albinus, 2009/09/03