Hi you,

my daughter is spending to much time in websurfing and ICQ chatting and I want to limit this. Therefore I created the following iptables firewall script and made it active via cronjob:
Code:
iptables -A FORWARD -s 192.168.1.123 -d 0/0 -j REJECT
After that, web surfing does no longer work. Thats OK. But she is still able to chat via ICQ, if the connection was established before the script became active.

How can I make it work, that exististing TCP connections are killed?

Cheers,
Thomas