1
Q
FTP
A
20,21
2
Q
SSH
A
22
3
Q
SFTP
A
22
4
Q
TelNet
A
23
5
Q
AMTP
A
25
6
Q
DNS
A
53
7
Q
HTTP
A
80
8
Q
POP3
A
110
9
Q
NTP
A
123
10
Q
IMAP
A
139
11
Q
IMAP
A
143
12
Q
DHCP
A
1
