QUICK SETUP ONE WAY SSH... from client to host.
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start on the authorized client:
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cd
mkdir .ssh
cd .ssh
ssh-keygen
cp id_rsa.pub id_rsa.CLIENT
scp id_rsa.CLIENT user@host:/home/.ssh/
ssh host

cd .ssh
cat id_rsa.CLIENT >> authorized_keys
exit
ssh host

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note:  ssh-keygen - just hit enter, don't type anything
       replace CLIENT with the system name