Networking Basics
Technical guides on Networking Basics.
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NAT Explained: SNAT, DNAT, One-to-One NAT and Port Forwarding
Follow how NAT changes packet addresses and ports, distinguish SNAT and DNAT, and understand the return path and firewall requirements.
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OSI and TCP/IP Layers: Follow Data from an Application to the Wire
Map the OSI and TCP/IP models, follow encapsulation, and distinguish the roles of IP addresses, MAC addresses and ports.