FTP - 21
TFTP - Trivial FTP
SFTP - Simple FTP (All file transfers)
SMTP - Simple Mail Transport P (sending) 25
Recieving is POP3 (110) or IMAP4 (143)
SNMP - Simple Network Management P (161) (Run/DXDIAG (Pulls system Info))
HTTP(s) - Hyper Text Transport P (secure) (80, (s)-443)
SSH - secure shell (22)
NTP - Network time P (syncing on 123)
LDAP - Lightweight Directory Access P (389)
DNS - Domain Name Service (53) (Forward and Reverse look-up)
DHCP - Dynamic Host Control P (UDP 67 and 68) (Dynamic, Static, and APIPA)
- Discover
- Offer
- Request
- DHCPACK
ICMP - Internet Control Message P (block Port 7 to block echo request) (Ping and Tracer)
Telnet - (23) (Gives command line interface) (partially outdated)
DoD Model - Layer 4 - Process/Application
Layer 3 - Host-To-Host
Layer 2 - Internet
Layer 1 - Network Access
1025^ - PC knows it was randomly generated
TCP - (Transmission Control P) Reliable
UDP (User Datagram P) - Unreliable
TCP/IP Layer 4
(R)ARP - (Reverse) Adress Resolution Protocol (Gives MAC address for IP) (R - Gives IP from MAC)
NAT - Network Address P (Organization for personal to public IP)