#language en

= Client backups =
User data should be synchronised to each user's respective home directory on `b.fluid.tuwien.ac.at`. Home directories on `b.fluid` are backed up daily and can be restored for at least one year by the admins.

== Setup instructions ==
=== Windows ===
In order to set up file synchronisation to `b.fluid` on your Windows client, please contact Iris Fula.

=== GNU/Linux, macOS, other Unix-like operating systems ===
Please make sure to…
 * save the script `sync-to-host` to a directory in your $PATH (for example `/usr/local/bin`),
 * check the `rsync` utility is installed (should be installed by default on most systems)
 * copy/paste the following lines to a terminal (adjust `TU_USER` according to your TU username):

{{{
export TU_USER=YOUR_TU_USERNAME
export CONFIG_DIR="${HOME}/.config/sync-to-host"
export SSH_KEY="${CONFIG_DIR}/id_ed25519"
export TARGET_DIR=$(hostname -s)

# set up config and SSH key
mkdir -p "${CONFIG_DIR}"
[[ -f "${SSH_KEY}" ]] || ssh-keygen -o -a 100 -t ed25519 -N "" -q -f ${SSH_KEY}
cat ${SSH_KEY} | ssh ${TU_USER}@b.fluid.tuwien.ac.at "mkdir -p .ssh && cat >> .ssh/authorized_keys"

# set up cron job
sudo tee /etc/cron.d/b_backup-${TU_USER} <<EOF
00 18 * * * ${USER} /usr/local/bin/sync-to-host ${TU_USER} b.fluid.tuwien.ac.at ${TARGET_DIR}
EOF
}}}