From the course: ISC2 Systems Security Certified Practitioner (SSCP) (2024) Cert Prep

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Internetwork trust architectures

Internetwork trust architectures

From the course: ISC2 Systems Security Certified Practitioner (SSCP) (2024) Cert Prep

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Internetwork trust architectures

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- [Instructor] Well-designed networks group systems into network segments based upon their security level. Let's talk about some of the more common security zones. We'll begin with a network border firewall. Typical border firewalls have three network interfaces because they connect three different security zones together. One interface connects to the internet or another untrusted network. This is the interface between the protected networks and the outside world. Generally speaking, firewalls allow many different types of connections out to this network when they're initiated by a system on more trusted networks, but they block most inbound connection attempts from the internet zone, allowing only those that meet the organization's security policy. A second interface connects to the organization's intranet. This is the internal network where most systems reside. This intranet zone may be further subdivided into segments for…

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