Logwatch

logwatch is a program that will analyze the server logs to detect attempts unsuccessful authentication for example. All logs will be monitored, and an email summarizing the full report will be sent to the administrator of the Sme (admin) every night

yum --enablerepo=smecontribs install logwatch

then you can type this if you want a report lighter without the firewall reporting

echo 'Service = "-iptables"' >> /etc/logwatch/conf/logwatch.conf
echo 'Service = "-iptables-multi"' >> /etc/logwatch/conf/logwatch.conf

signal-event post-upgrade && signal-event reboot