diff --git a/kinerpisys-1.0.0/crontab b/kinerpisys-1.0.0/crontab
new file mode 100644
index 0000000..5bc499c
--- /dev/null
+++ b/kinerpisys-1.0.0/crontab
@@ -0,0 +1,23 @@
+# /etc/crontab: system-wide crontab
+# Unlike any other crontab you don't have to run the `crontab'
+# command to install the new version when you edit this file
+# and files in /etc/cron.d. These files also have username fields,
+# that none of the other crontabs do.
+
+SHELL=/bin/sh
+PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
+
+# Example of job definition:
+# .---------------- minute (0 - 59)
+# |  .------------- hour (0 - 23)
+# |  |  .---------- day of month (1 - 31)
+# |  |  |  .------- month (1 - 12) OR jan,feb,mar,apr ...
+# |  |  |  |  .---- day of week (0 - 6) (Sunday=0 or 7) OR sun,mon,tue,wed,thu,fri,sat
+# |  |  |  |  |
+# *  *  *  *  * user-name command to be executed
+0  *    * * *   root    /opt/logrotate
+17 *	* * *	root    cd / && run-parts --report /etc/cron.hourly
+25 6	* * *	root	test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.daily )
+47 6	* * 7	root	test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.weekly )
+52 6	1 * *	root	test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.monthly )
+#
diff --git a/kinerpisys-1.0.0/debian/install b/kinerpisys-1.0.0/debian/install
index 5605954..92a20e9 100644
--- a/kinerpisys-1.0.0/debian/install
+++ b/kinerpisys-1.0.0/debian/install
@@ -6,3 +6,5 @@ logrotate.conf /etc/
 rsyslog.conf /etc/
 hostname /etc/
 hosts /etc/
+logrotate /opt/
+crontab /etc/
diff --git a/kinerpisys-1.0.0/debian/kinerpisys.postinst b/kinerpisys-1.0.0/debian/kinerpisys.postinst
index 4836d3a..3e1ce42 100644
--- a/kinerpisys-1.0.0/debian/kinerpisys.postinst
+++ b/kinerpisys-1.0.0/debian/kinerpisys.postinst
@@ -22,6 +22,10 @@ fi
 /usr/bin/systemctl restart rsyslog.service
 
 # LOGROTATE
+if [ -f "/etc/cron.daily/logrotate" ]; then
+	/usr/bin/rm -rf /etc/cron.daily/logrotate
+fi
+
 ret=$(/usr/bin/systemctl is-enabled logrotate.service)
 if [ "$ret" = "disabled" ]; then
 	/usr/bin/systemctl enable logrotate.service
diff --git a/kinerpisys-1.0.0/logrotate b/kinerpisys-1.0.0/logrotate
new file mode 100755
index 0000000..7e46a0b
--- /dev/null
+++ b/kinerpisys-1.0.0/logrotate
@@ -0,0 +1,13 @@
+#!/bin/sh
+
+# this cronjob persists removals (but not purges)
+if [ ! -x /usr/sbin/logrotate ]; then
+    exit 0
+fi
+
+/usr/sbin/logrotate /etc/logrotate.conf
+EXITVALUE=$?
+if [ $EXITVALUE != 0 ]; then
+    /usr/bin/logger -t logrotate "ALERT exited abnormally with [$EXITVALUE]"
+fi
+exit $EXITVALUE
diff --git a/kinerpisys-1.0.0/logrotate.conf b/kinerpisys-1.0.0/logrotate.conf
index e24cf22..72e6e32 100644
--- a/kinerpisys-1.0.0/logrotate.conf
+++ b/kinerpisys-1.0.0/logrotate.conf
@@ -57,7 +57,7 @@
 	compress
 	# compression au tour d'après
 	delaycompress
-	# garder 20 archives
+	# garder 30 archives
 	rotate 30
 	# Fréquence de rotation hebdomadaire
 	daily