When I try to enable firewall rules I get these errors in both 10.0.1 and 10.2.0: The bottom one is different depending on the updates I have installed or plesk version but the iptables thing is usually the same error. What is the problem? Is it this issue? http://kb.odin.com/5228 Does it need a kernel update? I have no idea how to do that, I have no "vzup2date utility" as the articles says. Edit: and that address email@example.com is a bad joke, you will get delivery failure !