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fundamentals
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network protocols
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Network Protocols
Networking Essentials
IP Addresses and Subnets
Telnet
DHCP: Give Me My Network Settings
ARP: Bridging Layer 3 Addressing to Layer 2 Addressing
ICMP: Troubleshooting Networks
Routing
NAT
Networking Core Protocols
DNS: Remembering Addresses
WHOIS
HTTP(S): Accessing the Web
FTP: Transferring Files
Email Protocols
Conclusion
Networking Secure Protocols
TLS
HTTPS
SMTPS, POP3S, and IMAPS
SSH
SFTP & FTPS
VPN
