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23 March 2007

Adaptive firewalls with iptables

If large numbers of connections are shut down in this fashion, you may find that a lot of servers are left hanging around in memory. With a small number of servers, those inactive pieces of code can be moved out into swap, tying up a small amount of disk

address firewall packet iptables reject connections module server kernel rule drop attacker source iplimit input attackers traffic block number port

20 March 2007

Code Style: DOM1 drop down menus using CSS level 2 visibility properties

by 5 others

This function includes a minor workaround to check that the LiveMenu.style.visibility property is not null, as this value initially appears to be the empty string in Internet Explorer 5.0 (in IE4.0 compatibility mode at least) and does not return true.

menu link visibility menus style script javascript page livemenu property hover netscape browser code browsers styles Visited function main drop

1 (2 marks)