All experts
Hi,
I try to secure a
RedHat ES 3.0
I have two NIC's
etho and eth1.
I want to at the
begging to drop everything on eth0 and accept only what i need like
SSH.
I use this
rules
iptables -A INPUT -i
lo -p all -j ACCEPT
iptables -A OUTPUT -o lo -p all -j
ACCEPT
iptables -A INPUT -i eth0 -m state --state ESTABLISH,
RELATED -j ACCEPT
for dropping all connection i use this
rule
iptables -A INPUT -i
eth0 -p tcp --tcp-option ! 2 REJECT --reject-with
tcp-reset
for accepting i use this
rule
iptables -A INPUT -p tcp -i eth0 --dport 22 -j
ACCEPT
basically i stop all connection but it effect booth
eth0 and eth1
and for port 22 i can't connect , surprise when i
run iptables -L -v i get as SSH connection was
accepted.
at the same time i found that the output connection
like internet do not work.
i need help on this
issue.
Thanks
Hari
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