🔍 Packet analysis with Wireshark on Kali Linux — watching the TCP Three-Way Handshake live.
Filtering eth0 traffic for Facebook connections revealed the full connection lifecycle:
• DNS resolves connect.facebook.net
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• SYN → SYN-ACK → ACK establishes the TCP session on port 443
• QUIC and TLS 1.3 kick in for encrypted data transfer
A great reminder that reliable communication is built on layers of negotiation before any real data moves.
Networking fundamentals, proven in practice 🖥️📡2/3
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