I wonder if anyone out there uses ssh through the emacs shell. I am able to connect with the remote machine but I cannot open files to view/edit with emacs using 'emacs filename' as the 'Terminal type "dumb" is not powerful enough to run emacs' (normally emacs would open within the console when connecting through the terminal).
Is this a bad idea to try to use emacs in such a way, or is this possible with a few fixes? Thanks much!
It may not be obvious on first sight, but eshell, the shell that is
implemented in Emacs Lisp works fine with tramp:
Welcome to the Emacs shell
~ $ uname -a
Linux local-machine 2.6.30-1-686 #1 SMP Thu Jul 30 14:45:30 UTC 2009 i686 GNU/Linux
~ $ cd /ssh:user#remote-machine:~
/ssh:user#remote-machine:/home/user $ uname -a
Linux remote-machine 2.6.18-6-686 #1 SMP Thu Aug 20 21:56:59 UTC 2009 i686 GNU/Linux
/ssh:user#remote-machine:/home/user $
A couple of ideas
Source the .bashrc explicitly via . ~/.bashrc and/or rearrange your bash init files and ~/.profile so that this gets loaded inside the emacs shell; then running ssh inside the Emacs shell works just fine
Use the emacs-specific Tramp mode to access remote files via ssh inside your local Emacs -- this is useful if you just need to update/touch/edit a remote file so you would not need to open a remote emacs inside the ssh session started from inside your local emacs.
Emacs has term-mode which is full blown terminal emulator you can run emacs in emacs. Anything you run on terminal will run in term-mode
Also emacs has tramp mode which can open files through ssh.
/scp:user#ipOrHost#port:/
it will transfer files back and forth. you just edit them as you would edit local files.
No need for x11 forwarding or other shenanigans.
You could use ssh x forwarding to run a remote emacs and display it on the local computer. I use Xming X Server when I'm on Windows
You could mount the remote filesystem with ssh and open the locally as normally.
For this I use ExpanDrive (commercial app) when on Windows
You could use emacs Ange ftp over ssh it can open remote files over ftp and ssh.
I use this with cygwin when on Windows
I have been struggling with Xming, which works, but as my internet connection is not the fastest I have to wait more 30 seconds before emacs or any X app even shows up. Also scrolling through a buffer after it has been opened will freeze from time to time => Very annoying
Try No machine (nxserver-freenx server/client). There are free edition servers, absolute the best and fastest solution when you want to connect to a Linux box and use xterm and emacs over X. It shows up immediately and responds so fast. Even over a really slow connection :-) Clients are available for Windows, Mac OS, Linux
Emacs option for ssh : c-x c-f /ssh:user#host:/home/path/
For Reference: Open file via SSH and Sudo with Emacs
Related
Earlier this week I tried ssh'ing into my lab machine (as I do very frequently) via tramp mode (ubuntu 14.04) and now it seems to not work out of the blue. I have tried checking all folder permissions, that ssh actually works (in terminal, even nested in emacs). However, it still will not connect me. I see the connection in my .ssh file so I am not sure what the issue is. Any ideas? This is killing my productivity since I would much rather tramp in vs git everything.
######### from C-x C-f ssh:user#host...etc (which has always worked in the past) #######
ssh: Could not resolve hostname ssh: Name or service not known
########## from *Messages buffer* #####################
Tramp: Opening connection for ssh using scp...
Tramp: Sending command `exec ssh -e none ssh'
Tramp: Waiting for prompts from remote shell
Tramp: Sending command `exec ssh -e none ssh'
Tramp: Opening connection for ssh using scp...done
byte-code: Process died
side note: I did start having pop-ups w/ system program problem detected but the ONLY thing in the /var/crash folder is a virtual box issue so I cant imagine that could be it. (Can I purge emacs and grab my config again and solve it that way?)
The error message clearly indicates that you are doing C-x C-f /ssh:user#host/path/to/file. A colon is missing after host. Pls open this like C-x C-f /ssh:user#host:/path/to/file.
I am running graphical Emacs 24.3.1 (this problem exists when using the console version as well) on Arch Linux. I am trying to use TRAMP to open files on a remote Fedora system by SSH with a private key which requires a password. Authentication works fine, and so does the listing of files. When I do try to open a file, my Emacs session hangs with "Tramp: Inserting `/{filename I'm trying to open}' ...done". It is not possible to abort with ESC ESC ESC or C-g. Does anyone have a solution to this?
Emacs 24 normally works very well with Tramp. What you might need is ControlMasterAuto in your .ssh/config file. This will ensure that the ssh connection information passes seamlessly to Emacs. This will also ensure that you only need to login once in a terminal and use multiple emacs frames in tramp mode. I have detailed the following steps
(1) Go to your .ssh/config file and add the following options
Host <hostname>
ControlMaster auto
ControlPath ~/.ssh/%r#%h:%p
ServerAliveCountMax=30
ServerAliveInterval=5
(2) Now login to the remote host through terminal.
(3) Open emacs frame and try opening the remote files through tramp (/ssh:). You must be able to connect to the remote host.
The above steps should work even for a two level authentication (using a rsa key +password).
This thread is old - however, a very similar problem on my FC22 laptop (tramp hanging when trying to type a colon following /su in the minibuffer) appears to be fixed by commenting the ::1 line in /etc/hosts.
I am already using Emacs server for some of the problems described in the documentation, For example, I have (server-start) in my .emacs init file, and I have set the EDITOR env. variable to emacsclient so that git and other programs don't open a new instance of Emacs when they need me to type text or log message. This is working great so far.
I am now wondering if I can use Emacs server for something else: I often launch Emacs remotely through an ssh -X session. Sometimes I need to close the ssh session (e.g. I need to reboot my local computer) and re-connect. It would be great if instead of fully closing Emacs for this, I could detach from Emacs, and reattach later.
Is this possible with Emacs server? I believe from things I have read online that the answer is yes, but:
My question:
How can I safely detach from an Emacs server and reattach later?
If you directly start Emacs from within the SSH session, you cannot gracefully detach, because the Emacs process becomes part of the process group created by the remote shell, and if the shell exists it will terminate all processes in its process groups.
However, you can start Emacs in Daemon mode first, with emacs --daemon. Emacs will load the configuration, start an edit server (even without an explicit (server-start) in your configuration), and detach from the terminal. This Emacs daemon will stay alive across different SSH session.
Subsequently, only use emacsclient to connect to the running daemon.
emacs --daemon or (server-start) in .emacs.
Next use emacsclient file, emacsclient -n file or emacsclient -c for just an attaching.
To leave attach as usual C-x C-c.
I think this is very basic question in using tramp, but it doesn't work for me.
I have my ~/.ssh/config file that points to my amazon ec2 machine
Host amazon
Hostname xxxx.amazonaws.com
Port yyy
User me
IdentityFile ~/.ssh/ubuntu
ForwardAgent yes
I can easily do ssh amazon from my terminal and I go to amazon ec2 (so my config is right), but in emacs
I do:
C-x C-f /ssh1:amazon:
I always get this error
In Aquamacs:
Process *tramp/ssh1 amz* exited abnormally with code 255
In Emacs:
tramp: Opening connection at amz using ssh1...
tramp: Waiting for prompts from remote shell
tramp: Waiting 60s for prompt from remote shell
tramp-process-actions: Login failed
I also have other ssh configurations that they ssh to my virtual boxes on my local machine and they have the same problem.
I really appreciate any help.
One thing that's worth trying is using the sshx connection method. That makes tramp try to avoid any non-standard shell configuration on the remote host.
Like this:
C-x C-f /sshx:amazon:
The tramp method ssh1 forces ssh to be run in ssh v1 protocol mode with the parameter -1. ssh v1 has known weaknesses and is insecure. Hence a lot of sites disable the ssh v1 protocol.
You can verify this from the shell with ssh -1 me#xxxx.amazonaws.com.
Try other tramp connection methods like ssh, sftp or scpx. You can see all pre-configured connection methods with C-h v tramp-methods.
If Moritz Bunkus's answer doesn't solve the issue, then you can configure the verbosity of tramp's output with
M-x customize-variable RET tramp-verbose RET
In particular, level 6 is "sent and received strings" which might help you to determine whether the "Waiting for prompts from remote shell" is because it isn't receiving a prompt pattern that it recognises, or because of some more critical failure.
If it's simply receiving a prompt it doesn't recognise, then you might look at customizing the tramp-login-prompt-regexp or tramp-shell-prompt-pattern variables.
(Of course if your ssh agent is working correctly, then login prompts shouldn't be relevant.)
If you're running Emacs in Windows, then also see these Q&As:
Emacs: Tramp doesn't work
Using tramp with EmacsW32 and cygwin, possible?
I'm looking to set up an emacs server such that the files specified by emacsclients
are relative to the emacsclients' filesystem and not the server's filesystem. For instance, if I set up an
emacs server on a machine "darkstar" and I connect to this server through an emacsclient
on "brightstar" with the command
emacsclient -nw '~/fantastic'
The emacs server will attempt to edit the file ~/fantastic on darkstar and not on
brightstar. Id like the reverse of this. I'm open to all sorts of zany suggestions.
*Background note:
I want an emacs process that tracks all the buffers I open on various
machines, keeps track of my color settings, bindings, etc. I want all of this
available and replicated on any arbitrary machine with emacs. The emacs server
seems to do just this but without the ability to edit client's local files!
You should be able to set to set up a shell function which uses tramp, like
edit-local() {
emacsclient -e "(find-file (expand-file-name \"$1\" \"/ssh:$USER#$(hostname):$PWD\"))"
}
Of course you may have to change the tramp protocol to whatever you have setup.
Does the remote machine (the one running Emacs) have mounted the filesystem of the local machine? If so, you could issue something like:
emacsclient --eval ´(my-open-file "~/fantastic" "my-local-machine")´
You could then write the function my-open-file that could, for example, open the file //mounts/my-local-machine/home/YOUR-ACCOUNT/fantastic (assuming this is the mount point).
It will require some elisp-hacking and some script hacking (using, for example, Ruby) to build up the emacsclient command-line.