Yesterday I've configured rsnapshot on a debian 9 machine, but the cron's I've set for the backups in /etc/cron.d/rsnapshot are not being executed.
Also, after I save & close the /etc/cron.d/rsnapshot it doesn't say it installed the new crontab.
How can I find out why it's not being executed? I've already done some searching on this website and have found the following things:
- There are no entries in /var/mail
- Right permissions + owner for /etc/crontab
Also the cron process is running:
ps aux | grep cron root 364 0.0 0.0 29664 2880 ? Ss Oct12 0:05 /usr/sbin/cron -f
The cron is set as following:
0 */4* * * root /usr/bin/rsnapshot hourly
Any suggestions on how I can find out why the crons are not being executed? I've already tried executing the command manually (this works) and have also tried nano and vim while editing and closing the rsnapshot cron file.