X-Git-Url: https://plomlompom.com/repos/berlin_corona.txt?a=blobdiff_plain;f=bullseye%2Fsetup_scripts%2Finit_user_login.sh;fp=bullseye%2Fsetup_scripts%2Finit_user_login.sh;h=21a8062276707e16790d062de842f07f8f8115f5;hb=276e00b18518697f3f528d05629cfe11c5fb4afc;hp=0000000000000000000000000000000000000000;hpb=7157cf1dd764784ad5ebe0c0f2c96dd39cf10478;p=config

diff --git a/bullseye/setup_scripts/init_user_login.sh b/bullseye/setup_scripts/init_user_login.sh
new file mode 100755
index 0000000..21a8062
--- /dev/null
+++ b/bullseye/setup_scripts/init_user_login.sh
@@ -0,0 +1,42 @@
+#!/bin/sh
+# This script assumes a server with key-based root access into one of
+# key-based access only to a new non-root account plom.
+#
+# CAUTION: This is optimized for a *fresh* setup. It will overwrite any
+# old /etc/ssh/sshd_config.
+#
+# Dependencies: ssh, scp, properly configured sshd_config file in reach.
+set -e
+
+# Location of an sshd_config with "PermitRootLogin no" and
+# "PasswordAuthentication no".
+config_tree_prefix="${HOME}/public_repos/config/bullseye"
+linkable_files_dir="${config_tree_prefix}/etc_files/server"
+system_path_sshd_config='/etc/ssh/sshd_config'
+local_path_sshd_config="${linkable_files_dir}${system_path_sshd_config}"
+
+# Ensure we have a server name as argument.
+if [ $# -eq 0 ]; then
+    echo "Need server as argument."
+    false
+fi
+server="$1"
+
+# So we're only asked once …
+eval $(ssh-agent)
+ssh-add
+
+# This will be used to log-in as root from plom account.
+echo 'Asking for new root password.'
+ssh root@"${server}" "passwd"
+
+# Set up plom's ~/.ssh/authorized_keys from root's.
+ssh root@"${server}" 'useradd -m plom'
+ssh root@"${server}" 'mkdir /home/plom/.ssh'
+ssh root@"${server}" 'chown plom:plom /home/plom/.ssh'
+ssh root@"${server}" 'cp /root/.ssh/authorized_keys /home/plom/.ssh/'
+ssh root@"${server}" 'chown plom:plom /home/plom/.ssh/authorized_keys'
+
+# Set up SSH config and remove direct SSH login to root.
+scp "${local_path_sshd_config}" root@"${server}":"${system_path_sshd_config}"
+ssh root@"${server}" 'rm -rf /root/.ssh && service ssh restart'