Sample rsnapshot config, from http://www.ryanbrooks.co.uk/blog/2013/08/22/simple-rsnapshot-backup-over-ftps/

rsnapshot.conf

#################################################
# rsnapshot.conf - rsnapshot configuration file #
#################################################
#                                               #
# PLEASE BE AWARE OF THE FOLLOWING RULES:       #
#                                               #
# This file requires tabs between elements      #
#                                               #
# Directories require a trailing slash:         #
#   right: /home/                               #
#   wrong: /home                                #
#                                               #
#################################################

config_version	1.2

snapshot_root	/var/rsnapshot/private/snapshots
no_create_root	1

cmd_cp		/bin/cp
cmd_rm		/bin/rm
cmd_rsync	/usr/bin/rsync
#cmd_ssh	/usr/bin/ssh

cmd_logger	/usr/bin/logger
cmd_du		/usr/bin/du
cmd_rsnapshot_diff	/usr/bin/rsnapshot-diff

# Specify the path to a script (and any optional arguments) to run right
# before rsnapshot syncs files
#
#cmd_preexec	/path/to/preexec/script

# Specify the path to a script (and any optional arguments) to run right
# after rsnapshot syncs files
#
#cmd_postexec	/path/to/postexec/script


#########################################
#           BACKUP INTERVALS            #
# Must be unique and in ascending order #
# i.e. hourly, daily, weekly, etc.      #
#########################################

retain		hourly	24
retain		daily	7
retain		weekly	4
retain		monthly	60

verbose		2
loglevel	3
logfile	/var/log/rsnapshot.log

lockfile	/var/run/rsnapshot/rsnapshot.pid
stop_on_stale_lockfile		0

link_dest	1
sync_first	1

###############################
### BACKUP POINTS / SCRIPTS ###
###############################

# LOCALHOST
#backup	/home/		localhost/
#backup	/etc/		localhost/

# Remote SFTP site
backup	/media/remote_server		remote_server/