+Wizbackup is a minimalistic backup system based on rsync and hardlinked
+snapshots.
+
+Its main feature is that each backup snapshot is a plain filesystem tree, identical to the
+original. Theere's no need for a tool to restore and manage backups.
+
+There are a few downsides to this simple structure:
+ - Backups are uncompressed (unless the underlying filesystem supports transparent complression)
+ - Large files which change every day, such as logs and databases, are duplicated in each snapshot,
+ wasting space. Reflinks (aka COW-links) would solve this.
+
+
+Setup
+=====
+
+List the hosts to be backed up:
+
+```
+mkdir -p /backup/HOSTS
+cat >/backup/HOSTS/example <<__EOF__
+host1.example.com
+host2.example.com
+__EOF__
+```
+
+Optionally, specify paths to be excluded from backups:
+
+```
+mkdir -p /backup/EXCLUDE
+cat >/backup/EXCLUDE/ALWAYS <<__EOF__
+/dev/
+/mnt/
+/proc/
+/sys/
+/selinux/
+__EOF__
+```
+
+You can also specify host-specific excludes:
+
+```
+cat >/backup/EXCLUDE/host1.example.com <<__EOF__
+/var/cache
+__EOF__
+```
+
+Install the wizbackup cronjob:
+
+```
+cat >/etc/cron.daily/wizbackup <<__EOF__
+#!/bin/bash
+wizbackup-driver /backup/HOSTS/example /backup
+__EOF__
+```
+
+Create an ssh keypair for each host:
+
+```
+mkdir -p /etc/wizbackup
+ssh-keygen -N '' -c "wizbackup@example.com" -f /etc/wizbackup/ssh_id
+ssh-copy-id -f /etc/wizbackup/ssh_id.pub root@host1.example.com
+ssh-copy-id -f /etc/wizbackup/ssh_id.pub root@host2.example.com
+```
+
+That's it!