try iptables. the others require both an installation and loading of modules 
before they will work.

also, given the presentation last night, fwbuilder is a pretty good tool 
(though you really should study up on the text scripting before going to a 
gui tool).

Mage


On Friday 10 October 2003 12:39 pm, Dvmcaferty@aol.com wrote:
> Hello PLUG,
> I am setting up a red hat 8 linux box and am having problems setting up
> a firewall.
> The ipchains and ipfwadm commands don't work with error messages:
>
> # ipchains -L
> ipchains: Incompatible with this kernel
>
> # ipchains -M -L
> ipchains: cannot open file `/proc/net/ip_masquerade'
>
>
> # /sbin/ipfwadm
> Generic IP Firewall Chains not in this kernel
>
> It seems I must do something with the kernel (which is 2.4). Also I cannot
> create a ip_masquerade file (read only permissions on directories)
>
> Can anyone send me in the right direction?
>
> Thanks,
> Dan
>
>
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