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Re: stateful firewall



On 22 Mar 2001 10:57:14 -0800, Mike Fedyk wrote:
> In a way, 2.2 already had something similar.  Masq+Masq_ftp.

Weeeeellllllllll ... ish ...

 
> You can even masq only ftp, and get the benifit.  Though, this is a
> workaround, it does help.


Yes, but only if you're doing masquerading. I run quite a tight firewall
on my local machine, which isn't doing masq or nat for anything. I run
ip_conntrack_ftp and ip_conntrack_irc, and this way, I can say "allow
all RELATED connections", so every FTP transfer, every DCC transfer,
will get marked as related, so I can allow everything without needing to
open all my high ports.

See how this is 10,000 times better than: a) ipchains, and b)
statelessness?

:) d

-- 
Daniel Stone
Linux Kernel Developer
daniel@kabuki.openfridge.net

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K? w++(--) O---- M- V-- PS+++ PE- Y PGP>++ t--- 5-- X- R- tv-(!) b+++ DI+++ 
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