Short guide to secure network

From: Magnus (magnus.hagberg_at_qbranch.se)
Date: 02/25/04 

Date: Wed, 25 Feb 2004 14:17:42 +0100

Hi

I am going to secure my network with tcp/ip and ICF on all my computers. I
got a Domain Controller, Servers, and some clients.
Is there a short guide to the basic ports, both TCP and UDP to keep open.
And perhaps even what protocols to allow.
Just a few of the services that I am running on my network:
Active directory
DNS
DHCP
FTP SSL
Remote Desktop
SQL Server

Not even google is helping me.

/Magnus

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