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A “Firewall” is a network component that connects an internal network (Intranet) to a public network (e.g. Internet), in much the same way as a Router. Access to the other network can be limited or blocked completely. This limitation/blocking will depend on the direction of access, the used utility and authentication/identification of the network subscriber.
Another feature of a Firewall can be the encryption of data. For example, this may make sense if the public network is being used only as a transit route between two physically remote parts of an Intranet.



Pilz de México, S. de R.L. de C.V. Safe Automation
Convento de Actopan 36 Jardines de Santa Mónica
Tlalnepantla, Méx. 54050

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