[ILUG] Strange firewall log enteries [?hacking attempts]

[Timothy Murphy]

On Tuesday 11 May 2004 08:19, Paul Jakma wrote:

> # iptables -L scans -v -n | awk -f ~/scan-table.awk

Is there a tutorial for the simple-minded anywhere
on how to check one's firewall?

Incidentally, if you have a local LAN,
with everything coming from the outside world
through one master machine,
do you run iptables on the "leaves",
or is it sufficient just to run it on the master?

Final question: why did I put
==================================
$IPTABLES -A INPUT -p tcp --sport 6881:6999 -j ACCEPT
$IPTABLES -A INPUT -p tcp --dport 6881:6999 -j ACCEPT
==================================
in my rc.local ?
Was it a good idea?

-- 
Timothy Murphy  
e-mail (<80k only): tim /at/ birdsnest.maths.tcd.ie
tel: +353-86-2336090, +353-1-2842366
s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland