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Iptables: The Flexible Firewall Utility for Linux

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This article covers the basics of Iptables and will add to your understanding of this firewall utility. After going through it, you can try...

Linux Firewall: Executing Iprules Using PHP

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A firewall keeps the network secure by analysing packets and determining whether they should be allowed through or not. This article shows how to...

Deploy a DNS Server in a Secure Way

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  BIND (Berkeley Internet Name Domain) is one of the more widely used DNS servers. This article guides readers on how to deploy a BIND...

Building a Server from Scratch, Part 2: Firewalls, Port Forwarding, NAT,...

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Last month, we built a server using off-the-shelf hardware. This time, let’s set up some essential server services.