11-22-2016
So what you want to do is to put a public key into place without authenticating. Would you be happy if your uses did this and could overwrite the authorised public key too?
If there is a plain FTP server on each box you want to connect to and you have credentials that will let you FTP to each of them, then you can certainly script that to put the public key in the correct location.
Make sure that your don't overwrite the existing
authorized_keys file in case it's already in sue for something else.
Make sure that you get the permissions correct: mode 700 for
~/.ssh and mode 600 for files under
~/.ssh
Another way you might achieve this could be if you have a backup/restore agent on each, get the software to 'restore' your file to each in turn, but that might be more cumbersome that putting in your credentials in the first place and runs the risk of overwriting just the same.
I hope that this helps,
Robin
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LEARN ABOUT FREEBSD
ssh-copy-id
SSH-COPY-ID(1) BSD General Commands Manual SSH-COPY-ID(1)
NAME
ssh-copy-id -- copy public keys to a remote host
SYNOPSIS
ssh-copy-id [-lv] [-i keyfile] [-o option] [-p port] [user@]hostname
DESCRIPTION
The ssh-copy-id utility copies public keys to a remote host's ~/.ssh/authorized_keys file (creating the file and directory, if required).
The following options are available:
-i file
Copy the public key contained in file. This option can be specified multiple times and can be combined with the -l option. If a
private key is specified and a public key is found then the public key will be used.
-l Copy the keys currently held by ssh-agent(1). This is the default if the -i option was not specified.
-o ssh-option
Pass this option directly to ssh(1). This option can be specified multiple times.
-p port
Connect to the specified port on the remote host instead of the default.
-v Pass -v to ssh(1).
The remaining arguments are a list of remote hosts to connect to, each one optionally qualified by a user name.
EXIT STATUS
The ssh-copy-id utility exits 0 on success, and >0 if an error occurs.
EXAMPLES
To send a specific key to multiple hosts:
$ ssh-copy-id -i /path/to/keyfile.pub user@host1 user@host2 user@host3
HISTORY
The ssh-copy-id utility was written by Eitan Adler <eadler@FreeBSD.org> as a drop-in replacement for an existing utility included with
OpenSSH.
BSD
February 28, 2014 BSD