1. modify rsyslog config: open /etc/rsyslog.d/50-default.conf,remove # before cron.*

pico /etc/rsyslog.d/50-default.confCode language: JavaScript (javascript)

[quote]
# Default rules for rsyslog.
#
# For more information see rsyslog.conf(5) and /etc/rsyslog.conf

#
# First some standard log files. Log by facility.
#
auth,authpriv.* /var/log/auth.log
*.*;auth,authpriv.none -/var/log/syslog
cron.* /var/log/cron.log
#daemon.* -/var/log/daemon.log
kern.* -/var/log/kern.log
#lpr.* -/var/log/lpr.log
mail.* -/var/log/mail.log
#user.* -/var/log/user.log
Code language: PHP (php)

2. chown syslog:admin cron.log

3. restart rsyslog service: sudo service rsyslog restart

sudo service rsyslog restart

4. restart cron service: service cron restart

service cron restart

Now you can check cron log from file cat /var/log/cron.log