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Old 08-11-2003, 08:39 AM   #1
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Registered: Aug 2003
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Need help with firewall security ...

Hello. I have a question about securing a server ad forwarding some ips

I have a computer connected to the internet using IP eg: and I have a 32 IP subnet - eg with netmask (this means that I can use for braodcast and IPs from ->

The "server" has 2 ethernet cards: eth0 with IP and eth 1 with
I set /proc/sys/net/ipv4/ip_forward to 1 - this ensures the IP forwarding from and to the copmuters in the subnet.
My questions are the following: do I need to add any other line in the firewall configuration, for the computers in the subnet to have access to the internet ?

How can I secure my server from outside attacks and not cut off the internet access for the other computers ?

Please help me with this = I am really new to this thing and I would really like to know a "professional"s idea about this


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