What is a DMZ, and why every company has one

A DMZ separates the parts of a company’s network the public needs to reach from the parts they should never touch. When an attacker gets in, the DMZ is the wall that stops them from spreading. In this video, we walk through a real-world DMZ design and put it to the test.

▬▬ Tools Used ▬▬
– Kali Linux: attacker OS
– Ubuntu: web server and DB server
– pfSense: firewall
– Cisco IOL: router and switch
– EVE-NG: network lab simulator

▬▬ ⏱️ Chapters ▬▬
00:00 Prologue
00:30 3 things every online business needs
01:01 The naïve design
01:52 Separating the segments
02:20 What is a DMZ?
03:10 Sally’s DMZ topology
07:39 Test 1: web to internet
07:55 Test 2: web to DB
08:38 Test 3: DB to web
09:04 Test 4: Kim to DB
09:24 Test 5: Kim finds the public IP
10:28 Test 6: why ping fails
11:12 Outro

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