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Configuring IPCop Firewalls by James Eaton-Lee, Barrie Dempster

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Other Services Sometimes Run on Firewalls

Although in enterprise scenarios (such as the example of network topology listed earlier in this chapter) firewalls, routers, and proxy servers are generally separate devices, in smaller networks (and even some larger ones), roles are very frequently combined. Even in a large enterprise, in our branch office, it might not make economic sense to have three network infrastructure servers (firewall, router, proxy server) and three desktop infrastructure servers (fileserver, mail server, print server) if the office only has a staff of 50! By putting all of our network tasks on one host running something such as IPCop, and handling our desktop services off one server, we cut our equipment by 2/3, and possibly ...

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