Port numbers Flashcards
1
Q
tcp/20
A
FTP (active mode data)
2
Q
tcp/21
A
FTP (control)
3
Q
tcp/22
A
SSH
4
Q
tcp/23
A
Telnet
5
Q
tcp/25
A
SMTP
6
Q
udp/53
A
DNS
7
Q
tcp/53
A
DNS
8
Q
udp/67
A
DHCP
9
Q
udp/68
A
DHCP
10
Q
tcp/80
A
HTTP
11
Q
tcp/443
A
HTTPS
12
Q
tcp/110
A
POP3
13
Q
tcp/143
A
IMAP4
14
Q
udp/137
A
NetBIOS
15
Q
tcp/139
A
NetBIOS