Remote TCP server through ssh tunnel [Was: Re: Server port]

[Lluís]

Stefan Monnier writes:

>> Can this now be applied?  I have posted an updated patch to
>> http://debbugs.gnu.org/cgi/bugreport.cgi?bug=854

> Yes, people, feel free to install it, thank you,

Which reminds me... can I use emacsclient to connect to a server behind
a firewall?

I've tried with this:

server$ emacs --daemon --eval '(setq server-use-tcp t server-host "0.0.0.0")'
server$ netstat -nap | grep emacs
tcp        0      0 0.0.0.0:13501           0.0.0.0:*               LISTEN      
12078/emacs     
server$ ssh -R 13502:localhost:13501 firewall
client$ ssh -L 13501:localhost:13502 address@hidden
# I already have an existing tunnel for ssh connections to server
client$ scp server:.emacs.d/server/server /tmp/server
client$ sed -i -e s/0.0.0.0/127.0.0.1/ /tmp/server
client$ emacsclient -f /tmp/server -c
Waiting for Emacs...
*ERROR*: Display :0.0 can't be opened
[Exit 1 ]
client$ emacsclient -f /tmp/server -nw
*ERROR*: Could not open file: /dev/pts/5

Do you have any clue of why is this happenning? According to the
documentation, this should work flawlessly (at least with hosts on the
same network):
  
http://www.gnu.org/software/emacs/manual/html_node/emacs/emacsclient-Options.html


Thanks,
        Lluis

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