A simple question about rsnapshot.

In order to perform daily backups I'm going to add lines to cron in my Ubuntu.

Then, why do I have also these lines in the rsnapshot.conf ?

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

interval        hourly  6
interval        daily   7
interval        weekly  4
#interval       monthly 3

If I use cron, should I disable them ? thanks

ps. I've just realized that in the crontab I still have "hourly" and "daily". Should I then uncomment only the one I use in the crontab ? And what's the point to specify hourly if it is already specified in cron ? I'm a bit confused.

# crontab -e
0 */4 * * * /usr/local/bin/rsnapshot hourly
30 23 * * * /usr/local/bin/rsnapshot daily