Shorewall 4.x di TSL 3.0.5

Instan firewall yang mudah cara instalasinya.
Supaya saya tidak lupa dan bermanfaat buat yang lain, maka saya dokumentasikan saja :D.

Untuk trustix, dan “mungkin” distro lain yang tidak spesifik, sebaiknya ambil paketan “noarch”.
Bisa juga pakai versi tgz. Tapi saya lebih memilih yang rpm, biar ndak mumet. Namanya juga mau instant

Contoh kasus, shorewall akan dipasang di mesin mail dengan 1 interface, dan versi terbarunya 4.0.11
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How to convert a MT box in an Anti Spam server with v2.9

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Hi there, for months I have the idea how to transform one Mikrotik OS in an Anti Spam server. After more than 20 days applying few scripts, firewall rules and address list, I have achieved reduce from 45.000 mails per day to only 11.000/12.000 without many complaints from my customers.

Before continuing, some details about this:

Yes, I know that exists others solutions.
Yes, I know with Linux can obtain the same results.
Yes, I know that it seems a crazy solution.
Yes, I know (in the practice) that this solutions generate a moderate cpu usage. I have a Pentium IV with 75% of cpu usage (this can change with new features from MT… see scripts explanation) and we are a little ISP.
Yes, yes, yes…
I use MT from six years ago (when John Tully & Arnis Riekstins answered the company mails themselves) and always I try to resolve any networking necessity whit MT.
I had the trust that can resolve this whit MT.
and after thinking about this, I can’t never sleep all night from many days, so, for my health and wife I made it !!!

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