File conf.logrotate.ntp of Package NTP-4.2.8p14-sle11

/var/log/ntp {
    compress
    dateext
    maxage 365
    rotate 99
    size=+2048k
    notifempty
    missingok
    copytruncate
    postrotate
	chmod 644 /var/log/ntp
    endscript
}