I found this document quite useful:
once I had my head around the SSH key authentication I found there were a
myriad of sites and documents that could help with troubleshooting
without being i specific
I think the keys got generated in /home/ROB because you did not change to
directory .ssh before the keygen command.
One of the things that I consistently missed early on were the
permissions setups on the directories so that is worth checking.
I think your public key file needs to be sent to the host you are
connecting to and added to the authorizedkeys file in your .ssh directory
on that server.
What helped me enormously was setting up ssh between some linux hosts as
part of separate project as the key authentications is a fairly specific
Hope this helps somewhat.
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