FTP, File Transfer Protocol
Telnet, Remote Terminal Emulation
SMTP, Simple Mail Transfer Protocol
IPSec, Internet Protocol Security
DNS, Domain Name Server
DHCP, Dynamic Host Configuration Protocol
TFTP, Trivial File Transfer Protocol
HTTP, HyperText Transfer Protocol
POP3, Post Office Protocol
NNTP, Network News Transfer Protocol
NTP, Network Time Protocol
IMAP4, Internet Message Access Protocol
SNMP, Simple Network Management Protocol
LDAP, Lightweight Directory Access Protocol
HTTPS, HyperText Transfer Protocol with Secure Sockets Layer (SSL)
Well Known Ports
Assigned for specific Protocols and Services, Ports 0 to 1,023
ICANN can assign a specific port for a newly created network service, Ports 1,024 to 49,151
Dynamic (Private or High) Ports
Ports 49,152 to 65,535
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