From: users-bounces@xxxxxxxxxxxxxxxxxxxxxxx [mailto:users-bounces@xxxxxxxxxxxxxxxxxxxxxxx] On Behalf Of James Hogarth
Sent: Friday, July 15, 2011 11:41 AM
To: Community support for Fedora users
Subject: Re: [SOVLED by '!' ]how to specify IP not equal to in iptables rules ????
>
> '!' Solved my problem
>
Perhaps
for the people reading the thread on this list....
It is not a good
thing the have the policy of iptables set to "accept", and drop what you
want.
If you ever misses one port, you are as vulnerable as you would have
been without any rules.
Better approach is:
1) to set the policy to drop everything,
2) allow what is needed,
4) log everything else.
If you find you log gets to bulky, you can introduce stap 3) to drop traffic from specific port&address before everything else is logged.
In this way, everything that you forgets, will be logged & dropped, instead of allowed in.
hw
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