new hosts appearing between 2011-09-08_0500 and 2011-09-08_1000: telkom.co.id www.divxonline.info www.sch.gr hosts disappearing between 2011-09-08_0500 and 2011-09-08_1000: kernel.org www.rijksoverheid.nl www.sysu.edu.cn www.telkom.co.id