ZeroShell

Introduction

ZeroShell is a Linux distribution developed by Fulvio Ricciardi (1), a system administrator at the Italian National Institute of Nuclear Physics’ (INFN) Lecce Section (2). Its purpose is to provide advanced LAN services, e.g. for an office building. Some of these services are:

Firewall: Enables forwarding of wanted traffic and blocking of unwanted traffic.
DHCP and DNS server: Lets clients in the network automatically receive an IP address (DHCP) and communicate using identifiers instead of IP addresses (DNS).
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Network security and authentication:' Network traffic to be encrypted and only authenticated clients can use the network.