rkhunter sends no email

I installed rkhunter on a Ubuntu 12.04.3 server

sudo apt-get install rkhunter

it installed the 1.3.8 version of rkhunter

sudo apt-show-versions rkhunter
rkhunter/precise uptodate 1.3.8-10

rkhunter gives back some messages

sudo rkhunter -c --rwo

but I do not get any daily email

  • You will have to look in /etc/default/rkhunter and set the following CRON_DAILY_RUN="true" and CRON_DB_UPDATE="true".
    – LMZ
    Nov 27, 2013 at 16:45
  • The solution was setting these two values which were lacking > sudo vim /etc/default/rkhunter > CRON_DAILY_RUN="true" > CRON_DB_UPDATE="true" will post a more detailed info later on
    – user219901
    Nov 27, 2013 at 16:58

1 Answer 1


1- check cron.daily did run

less /var/log/syslog

it did run in my case

2- run the main command contained in the cron routine

sudo less /etc/cron.daily/rkhunter

sudo /usr/bin/nice -n 0 /usr/bin/rkhunter --cronjob --report-warnings-only --appendlog > rkhunter20131127

if it does not work, add echos to /etc/cron.daily/rkhunter to display the parameters

sudo vim /etc/cron.daily/rkhunter

echo "cron_daily_run".$CRON_DAILY_RUN;

I found out the value for CRON_DAILY_RUN was empty

3- therefore

sudo vim /etc/default/rkhunter







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