make the default policy of the incoming chain (input) drop, but allow
established and related traffic, and allow all outgoing traffic by
setting the default policy to allow for the output chain (although it's
adviced to specify the outgoing traffic further..)
# drops all traffic
$IPTABLES -P INPUT DROP
$IPTABLES -P OUTPUT ACCEPT
$IPTABLES -P FORWARD DROP
# allow established an related incoming traffic
$IPTABLES -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
christoph
umar draz wrote:
hi dear members!
i have one interface card in my linux machine <eth0>
now i attache DSL modem with this interface now i
want block all incoming traffic.
but i want i can access every thing.
how i can do it
regards
Umar Draz
__________________________________________________
Do You Yahoo!?
Tired of spam? Yahoo! Mail has the best spam protection around
http://mail.yahoo.com
--
Christoph Georgi
-----------------------------
email. christoph.georgi@xxxxxx
fon. +64 (0)9 815 8259
registered linux user #380268
ubuntu 5.04 (ubuntu.com)
