Handbook of Cybersecurity and Networking: Vol II - Networks Protocols

Master the networks that power the internet - and learn to see, analyze, and defend them.Volume II of the Cybersecurity and Networking Handbook takes you from the first packet leaving a network card to a fully configured firewall protecting a segmented lab network. Every protocol is explained through its real behavior on the wire, and every chapter ends with a hands-on lab using the tools professionals actually use: Wireshark, nmap, tcpdump, curl, dig, iptables, and nftables.You'll master the TCP/IP model, IP addressing, NAT, routing and ARP, TCP/UDP internals, DNS and mail authentication, HTTP/HTTPS and TLS 1.3, remote access (SSH, RDP, VPNs), and the silent protocols keeping every LAN alive: DHCP, NTP, SNMP. The final chapters build a complete diagnostic toolkit and a real firewall, closing with a hands-on virtual lab - client, router, and DMZ server - where every tool in the book comes together.For students, sysadmins, and aspiring security professionals ready to understand what really happens on the wire.