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I have separated my crontab logging into /var/log/cron.log by uncommenting the below line in /etc/syslog.conf, but it still writes to /var/log/syslog too!

cron.*                                  /var/log/cron.log

How can i prevent it from writing to /var/log/syslog?

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2 Answers 2

Reset to default
13

You need to find the line that defines what should be sent to /var/log/syslog and modify it so that cron messages are not included. For example on an Ubuntu system I have to hand the /etc/rsyslog.d/50-default.conf file has the following entry for syslog:

*.*;auth,authpriv.none             -/var/log/syslog

changing it to:

*.*;cron,auth,authpriv.none             -/var/log/syslog

Does what you want. Note that the above is taking advantage of the ability to specify multiple facilities with the same priority as a list, if you don't already have a .none priority you would have to do this for example:

*.*;auth,authpriv.info;cron.none             -/var/log/syslog
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2
  • Thank you. May I ask you to describe more the second part of your answer?
    – shgnInc
    Dec 24, 2013 at 6:12
  • Doesn't seem to be working for me :( even with restarting rsyslog and cron
    – Freedo
    Jul 5, 2021 at 0:54
-2

add

cron.none             -/var/log/syslog

in your syslog.conf

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