💡 NOTE1: The ordering of these lectures in the actual course is a bit messy. I have reordered them in a sequence that makes more sense to me, trying to group related lectures together and/or ordering them according to the OSI multi-layer model (from lower layers to upper layers)
💡 NOTE2: I recommend taking the IPsec VPN and SSL/TLS lectures AFTER going through the Security section of this course (so that encryption is clearly understood).
Decimal to Binary Conversion (IP Addressing)
Network Address Translation (NAT)
Stateless vs Stateful Firewalls