Posts Tagged 'firewall'

Basic Firewall Topologies

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Introduction
In this section we are going to talk about the different ways a firewall can be set up. Depending on your needs, you can have a very simple firewall setup which will provide enough protection for your personal computer or small network, or you can choose a more complicated setup which will provide more protection [...]

Setup Exchange 2007 Firewall Headers

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A few months ago email being sent from my company were being rejected by some spam filters. After looking into it I found that exchange 2007 places the internal IP address in the header, which is a private address. Exchange 2007 does this by default.
Each time an SMTP email is passed from one server to [...]