Ssh – Ctrl-space not getting through ssh

sshterminalwindows

I am on windows 8 using GIT bash to access a remote server via ssh. When I press Ctrl+Space in emacs running locally in console (emacs -nw), everything works as expected. However, when going over ssh, Ctrl+Space simply inserts a space, while other commands like Ctrl+X work fine.

Why doesn't Ctrl+Space get through? I have considered switching to a different terminal, but I am also curios as to why this is happening.

Best Answer

If you're running things through the windows "shell" (DOS box, whatever) -- from a command line, it's because the terminal doesn't have a special map for ctrl-space. An actual windows ssh client (putty, securecrt, etc.) handles the keyboard mapping itself, and will do what I assume you want done (send a null.)

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Adding to Gilles' line of thought, I'd suggest using Cygwin's MinTTY terminal instead of the Windows console-based one. It uses PuTTY's engine and offers a much, much better experience.

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I'm almost sure you have a route problem. Probably you either have none or two default routes.

Let's assume you have two networks, 192.168.0.0/24 and 192.168.1.0/24, your router's IP 192.168.0.1 and your machine's addresses 192.168.0.2 and 192.168.1.2. A manual configuration would be something like:

sudo ifconfig eth0 192.168.0.2 netmask 255.255.255.0 up
sudo ifconfig eth1 192.168.1.2 netmask 255.255.255.0 up
sudo route add default gw 192.168.0.1
sudo route add -net 192.168.1.0 netmask 255.255.255.0

Although each scenario would require a slightly different command. [1]

Please make sure there's no other default route. Also, make sure you have ipv4_forward set to 1. [2]

Best Answer

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