On Wed, Aug 6, 2008 at 7:48 AM, Noob Centos Admin <centos.admin at gmail.com> wrote: > /sbin/iptables -A RH-Firewall-1-INPUT -s 219.64.114.52 -j DROP I'd recommend you add the extra rules by editing /etc/sysconfig/iptables instead. At least that way you can be sure they'll survive restarts off iptables. Next check that the output from '/sbin/chkconfig iptables --list' looks like this: 'iptables 0:off 1:off 2:on 3:on 4:on 5:on 6:off' otherwise, do '/sbin/chkconfig iptables on' so you're sure the service starts as intended. > If not, what should I do next to find and eliminate this problem? Thanks in > advance for any advice! Check the crontabs and follow up on the entries. Don't forget to also look in /var/spool/cron/ Are there any strange processes running? What does the logfiles say? Wait an hour or so, and you'll see more (competent) advice coming in BR Bent