Common Port Numbers Flashcards
Memorize those ports!
1
Q
Telnet
A
tcp/23
2
Q
Well-Known Port Range
A
1 to 1023
3
Q
tcp/636
A
LDAPS
4
Q
SMTP
A
tcp/25
5
Q
RDP
A
tcp/3389
6
Q
tcp/443
A
HTTPS
7
Q
tcp/25
A
SMTP
8
Q
TFTP
A
udp/69
9
Q
tcp/5060
A
SIP
10
Q
tcp/3389
A
RDP
11
Q
1024 to 49151
A
Registered Port Range
12
Q
SFTP
A
tcp/22
13
Q
udp/161
A
SNMP
14
Q
Registered Port Range
A
1024 to 49151
15
Q
udp/123
A
NTP
16
Q
udp/69
A
TFTP
17
Q
tcp/5061
A
SIP
18
Q
tcp/110
A
POP3
19
Q
POP3
A
tcp/110
20
Q
tcp/22
A
SSH
21
Q
LDAPS
A
tcp/636
22
Q
NTP
A
udp/123
23
Q
tcp/143
A
IMAP4
24
Q
DNS
A
udp/53
25
SMB
tcp/445
26
udp/67
DHCP
27
49152 to 65535
Ephemeral Port Range
28
HTTP
tcp/80
29
udp/68
DHCP
30
tcp/23
Telnet
31
Ephemeral Port Range
49152 to 65535
32
tcp/80
HTTP
33
FTP
tcp20, tcp/21
34
DHCP
udp/67, udp/68
35
SNMP
udp/161
36
tcp/20
FTP
37
LDAP
tcp/389
38
SIP
tcp/5060-5061
39
H.323
tcp/1720
40
tcp/389
LDAP
41
SSH
tcp/22
42
udp/53
DNS
43
IMAP4
tcp/143
44
HTTPS
tcp/443
45
ARP
None!
46
1 to 1023
Well-Known Port Range
47
tcp/21
FTP
48
tcp/445
SMB
