1.1 Explain the purposes and uses of ports and protocols. Flashcards
TCP
TCP - Transmission Control Protocol
- Connection-oriented
- “Reliable” delivery
- Can manage out-of-order messages OR retransmissions
- The receiver can manage how much data is sent
IP
- The network topology is the road
- Ethernet, DSL, coax cable
Hold data TCP and UDP
DNS
Port 53 - Domain Name system
Convert domains to IP addresses
H.323
H.323 tcp/1720
ITU Telecommunication H.323x protocol series
Voice over IP signaling
HTTP
HTTP tcp/80
Hypertext Transfer Protocol
Web server communication
HTTPS
HTTPS tcp/443
Hypertext Transfer Protocol Secure
Web server communica5on with encryp5on
LDAP
LDAP tcp/389
Lightweight Directory Access Protocol
Communicate with network directories
LDAPS
LDAPS tcp/636
Lightweight Directory Access Protocol Secure
LDAP over SSL
POP3
POP3 tcp/110
Post Office Protocol version 3
Receive mail into a mail client
RDP
RDP tcp/3389
Remote Desktop Protocol
Graphical display of remote device
SFTP
Port 22 - Secure FTP
Secure file transfer
SMB
SMB tcp/445
Server Message Block
Windows file transfers and printer sharing
SMTP
Port 25 - Simple Mail Transfer Protocol
Transfer email between mail server
SNMP
SNMP udp/161
Simple Network Management Protocol Gather stats and manage network devices
Telnet
TPC 23
Telecommunication Network
Remote console login to network devices
