I'm relatively new to Linux, and whilst installing a number of different applications on my Ubuntu server instance, somebody helpfully suggested I use 'sudo su' to speed things up a little. All good. I then disconnected (or let my connection time-out) when attempting to connect a little later on, I get 'Server refused our key' and am unable to log-in.
I've managed to mount the volume against another instance - so can thankfully access the filesystem - and my question is this:
Is it possible for me to fix this while I've got access to the volume? If so could anyone point me in the direction of any useful info on how I might go about this?