Allain Yoann schrieb: > Hello all, > > You would be great if you could help me on this: > I'm using these 3 rules: > > 1. iptables -P INPUT DROP > 2. iptables -A INPUT -m state --state ESTABLISHED -j ACCEPT > 3. iptables -A INPUT -p tcp --dport 23 -m state NEW,ESTABLISHED -j > ACCEPT > > > Then > 4. Bob connects on my telnet... > 5. I decide to suppress rule 3: > iptables -DINPUT -p tcp --dport 23 -m state NEW,ESTABLISHED -j > ACCEPT > > 6. Packets from Bob are still accepted because of rule 2. But I need > this rule (2) for my out-going connections responses. > > Is there a way to suppress the state which has been recorded for rule 3, > when deleting this rule? This breaks down to selectivly delete conntrack entries, right ? Harald Welte posted on this topic: https://lists.netfilter.org/pipermail/netfilter/2005-July/061538.html HTH and have a nice time, Joerg