/var/log/messages {
    # Append time and date to file
    dateext
    dateformat .%Y_%m_%d-%ss
    size 500M 
    rotate 13
    missingok
    create 640 root dosis    
    postrotate 
	    /bin/kill -HUP $(cat /var/run/syslogd.pid 2> /dev/null) 2> /dev/null || true
    endscript
}
