On Mon, 24 Sep 2001, James McP wrote:
> ....
> ....
> I would recommend you use a firewall on the connection. IPchains should be
> installed by default on a RH71 system. Put this script file in
> /etc/rc.d/init.d/ as the file ipchains. It is a very, very, very basic
> ipchains ruleset I wrote from memory.
>
> ---------------------------------
> echo "1" > /proc/sys/net/ipv4/ip_forward
> /sbin/ipchains -F
> /sbin/ipchains -A input -j ACCEPT -i ppp0 -s 0/0 25 -d 0/0 -p tcp
> /sbin/ipchains -P forward REJECT
> /sbin/ipchains -A forward -s 192.168.0.0/5 -j MASQ
> --------------------------------
> ....
Watch out! There should already be a /etc/rc.d/init.d/ipchains which
is what's normally used to start and stop the firewall? The echo command
can be put into rc.local, and the /sbin/ipchains commands can be executed
once, and if they work the setup can be saved with
/sbin/ipchains-save > /etc/sysconfig/ipchains
so it will be automatically used the next time the firewall is started.
--
Steven Yellin
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