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sendkey: Automated ssh key setup

I sent my “sendkey” script to Ivor. This script automates the injection of one’s ssh public key into a remote host’s authorized_keys file (to allow password-less login). It didn’t work very well when Ivor ran it. I’ve now updated the script:


KEY=`cat ~/.ssh/id_rsa.pub`

ssh $1 bash <<EOF                                                                                                                               
mkdir -p ~/.ssh
chmod u=rwx,g=,o= ~/.ssh                      
echo $KEY >> ~/.ssh/authorized_keys
chmod u=rw,g=,o= ~/.ssh/authorized_keys

It can be run like this:

% ./sendkey remoteusername@remotehost

15/02/2007 Update: I fixed the script so that it made the .ssh directory first… kind of important.

29/02/2007 Update: Klaus pointed out that it might be useful to write how to generate one’s ssh keys:

/usr/bin/ssh-keygen -t rsa -f ~/.ssh/id_rsa -N ''

Posted at 10:38 pm on Wednesday 13th February 2008

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