2 # This script assumes a server with key-based root access into one of
3 # key-based access only to a new non-root account plom.
5 # CAUTION: This is optimized for a *fresh* setup. It will overwrite any
6 # old /etc/ssh/sshd_config.
8 # Dependencies: ssh, scp, properly configured sshd_config file in reach.
12 # Location of an sshd_config with "PermitRootLogin no" and
13 # "PasswordAuthentication no".
14 linkable_files_dir="${config_tree_prefix}/etc_files/server"
15 system_path_sshd_config='/etc/ssh/sshd_config'
16 local_path_sshd_config="${linkable_files_dir}${system_path_sshd_config}"
18 expect_n_args 1 "(server)" "$@"
21 # If we already knew that host …
22 ssh-keygen -f "/home/plom/.ssh/known_hosts" -R "${server}"
24 # So we're only asked once …
28 # This will be used to log-in as root from plom account.
29 echo 'Asking for new root password.'
30 ssh root@"${server}" "passwd"
32 # Set up plom's ~/.ssh/authorized_keys from root's.
33 ssh root@"${server}" 'useradd -m plom'
34 ssh root@"${server}" 'mkdir /home/plom/.ssh'
35 ssh root@"${server}" 'chown plom:plom /home/plom/.ssh'
36 ssh root@"${server}" 'cp /root/.ssh/authorized_keys /home/plom/.ssh/'
37 ssh root@"${server}" 'chown plom:plom /home/plom/.ssh/authorized_keys'
39 # Set up SSH config and remove direct SSH login to root.
40 scp "${local_path_sshd_config}" root@"${server}":"${system_path_sshd_config}"
41 ssh root@"${server}" 'rm -rf /root/.ssh && service ssh restart'