![]() ![]() There are different approaches, but we will focus on evasion via control of the source IP or MAC address or the source port. Evasion Tactics: Evasion via source spoofingįirewalls are there to detect and block our scan, so we need to employ many different tactics, in order to circumvent them. There’s ways beyond firewalls in Nmap of course, and we’ve talked about some features, but for our purposes here, let’s just focus on firewalls for a bit. Thus, for the third part of our series we will explore a few scenarios showing how we can leverage Nmap’s options to assess and evade the firewalls we encounter. With more layers covered, we gain more control, but also spend more computing power. Next-generation Firewalls (NGFW) can also cover layers 5, 6, and 7. They usually focus on layers 3 and 4 of the OSI Model (occasionally layer 2). Today, firewalls are an essential part of almost every IT infrastructure and are being deployed in a myriad of shapes and forms. ![]()
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