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Re: howto: make-frame-on-other-display

From: Stefan Monnier
Subject: Re: howto: make-frame-on-other-display
Date: Sun, 22 May 2005 10:19:45 -0400
User-agent: Gnus/5.11 (Gnus v5.11) Emacs/22.0.50 (gnu/linux)

> If I understand it correctly, the above command allows two users on
> different machines to simultaneously edit a single buffer.

Note that it doesn't do a perfect job of it.  E.g. if one user hits M-x, the
other is temporarily "interrupted".  Also you have to trust the other user
since having access to one of your Emacs frames means he can read/write all
your files.

I.e. in most cases it's not a good solution.  You may want to try
revision-control-systems instead (if the "simultaneous" doesn't have to be
that fine grained).  IIRC there was also an elisp package that kept
a bi-directional pipe between two Emacsen to pass update info back and forth
to keep two buffers in sync on-the-fly, but I can't remember its name.

> I always recieve a "Cannot connect to X server xyz:0.0

The other user has to give you a copy of his Xauthority cookie (which means
he has to trust you as well since you can then also wreak havoc on his
account, tho not quite as straightforwardly as she can with your Emacs
frame).  See man `xauth'.


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