25 terms

TCP and UDP Port Numbers

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20
FTP-DATA
TCP
FTP, data (File Transfer Protocol)
21
FTP
TCP
FTP, control
22
SSH
TCP
Secure Shell
23
TELNET
TCP
Telnet
25
SMTP
TCP
SMTP (Simple Mail Transfer Protocol)
53
DNS
TCP & UDP
Domain Name System
67
DHCPv4
UDP
Dynamic Host Configuration Protocol
- IPv4 client to server
68
DHCPv4
UDP
Dynamic Host Configuration Protocol
- IPv4 server to client
69
TFTP
UDP
Trivial File Transfer Protocol
80
HTTP
TCP and UDP
Hypertext Transfer Protocol
110
POP3
TCP
Post Office Protocol, version 3
123
NTP
UDP
Network Time Protocol
137-139
NetBIOS
TCP and UDP
TCP/IP legacy support for the outdated NetBOIS protocol
143
IMAP
TCP
Internet Message Access Protocol
161
SNMP
TCP and UDP
Simple Network Management Protocol
443
HTTPS
TCP
Secure implementation of HTTP
445
SMB
TCP
Server Message Block
546
DHCPv6
UDP
Dynamic Host Configuration Protocol IPv6
client to server
547
DHCPv6
UDP
Dynamic Host Configureation Protocol IPv6
server to client
1720
H.323
TCP
Packet-Based Multimedia Communication Systems
2427/2727
MGCP
TCP and UDP
Media Gateway Control Protocol
3389
RDP
TCP
Remote Desktop Protocol
5004/5005
RTP
UDP
Real-Time Transport Protocol
Real-Time Transport Control Protocol
5060
SIP
UDP
Session Initiation Protocol, not encrypted
5061
SIP
UDP
Session Initiation Protocol, encrypted