[H-GEN] IPTABLES

[rickp at suntech.net.au]

I am hopeless at iptables and need a rule which will block attempts to
communicate with other servers on a net via multiple ethernet connections. 
In other words Server A is on the internet behind NAT and is connected to
network B via eth0 and network C via eth1.  I need to prevent access from
server A to B and C but allow B & C to connect to A.

I can't afford to get this wrong and need some help.  Would -

IPTABLES -A OUTPUT -d -o eth0 -j DROP
IPTABLES -A OUTPUT -d -o eth1 -j DROP

do the trick?

I need to put these in a script which runs at startup to reload them do I
not?

Thanks in advance,

Rick Phillips

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