Schwarz/weiss - esecurity Technologies Rolf Oppliger

Firewall-Technologien 4/19
❚ Cheswick und Bellovin haben den Begriff der Firewall
folgendermassen definiert
❚ „A firewall is a collection of components placed
between two networks that collectively have the
following properties
❙ All traffic from inside to outside, and vice versa, must
pass through the firewall
❙ Only authorized traffic, as defined by the local security
policy, will be allowed to pass
❙ The firewall itself is immune to penetration“
© 2010 Prof. Dr. Rolf Oppliger Folie 196