Ports Flashcards
Common Ports to Know for the A+
1
Q
FTP (File Transfer Protocol)
A
20/21 TCP
2
Q
SSH (Secure Shell)
A
22 TCP
3
Q
Telnet
A
23 TCP
4
Q
SMTP (Simple Mail Transfer Protocol)
A
25 TCP
5
Q
DNS (Domain Name System)
A
53 UDP
6
Q
HTTP (Hypertext Transfer Protocol)
A
80 UDP
7
Q
POP3 (Post Office Protocol 3)
A
110 TCP
8
Q
IMAP (Internet Message Access Protocol)
A
143 TCP
9
Q
HTTPS (Hypertext Transfer Protocol Secure)
A
443 TCP
10
Q
RDP (Remote Desktop Protocol)
A
3389 TCP
11
Q
NetBIOS (Network Basic Input/Output System)
A
137-139 TCP/UDP
12
Q
SMB/CIFS (Server Message Block/Common Internet File System)
A
445 TCP
13
Q
SLP (Service Location Protocol)
A
427 TCP/UDP
14
Q
AFP (Apple File Protocol)
A
548 TCP
15
Q
DHCP (Dynamic Host Configuration Protocol)
A
67/68 UDP
