Speed/multiplex up ssh connection
Cached articles @here.
ssh -N -f host
Opens a connection and goes into the background without executing a remote command so you don't need to keep a window or shell running locally just to keep that connection.
You can set it to
autoask instead of
auto to have ssh prompt you for whether
or not to reuse an existing connection.
The configuration directive
ControlPath tells ssh where it should keep its
socket information. I've chosen to put these files in /tmp, however it may be
best to put this into your own home directory on multi-user systems.
-o ControlMaster=no for ssh tunneling
You will need to specify
-o ControlMaster=no when using ssh to do ssh
tunneling otherwise multiple tunnels to a particular host will not work.
X11 forwarding under connection multiplexing
If it doesn't work and fail silently, use
-v to see whether X11 forwarding
request is sent to debug this. Possible solutions:
- config solution
add ForwardX11=yes (and ForwardX11Trusted=yes) to .ssh/config
The last time I checked this one, it's not working, however it should according to ssh man page.
PS: while testing this one, I crashed
SLED12 beta2, which resulted in a very interesting bug.
Also, isn't the whole point of putting ControlPath in
.ssh/config to make the
-S argument uneccessary? And doesn't the
ControlMaster auto also make the