ssh access without password

client —–> server

create the client’s ssh key (if not existing already)

ssh-keygen -t rsa

if you’re adding the first key, just copy the public key ~/.ssh/id.rsa_pub to the server

scp ~/.ssh/id_rsa.pub user@server:.ssh/authorized_keys2

to append another key, use:

cat ~/.ssh/id_rsa.pub | ssh user@server 'sh -c "cat - >>~/.ssh/authorized_keys2"'

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