Login build server without password

# copy your Workstation ssh public key to server for pwd-less login

# here is your public key, copy it
cat ~/.ssh/

# login server using your id
ssh 帳號@

# past your public key to the authorized_keys file
mkdir .ssh;cd .ssh;touch authorized_keys;vi authorized_keys

Finally, test the pwd-less ssh login.  reconnect it
ssh 帳號@