1
Q
FTP(File Transfer Protocol)
A
Port 21
2
Q
SMTP(Simple Mail Transfer Protocol)
A
Port 25
3
Q
POP3(Post Office Protocol version 3)
A
Port 110
4
Q
IMAP4(Internet Message Access Protocol version 4)
A
Port 143
5
Q
HTTP(Hypertext Transfer Protocol)
A
Port 80
6
Q
HTTPS(Hypertext Transfer Protocol Secure)
A
Port 443
7
Q
SSL(Secure Socket Layer)
A
Port 443
8
Q
DNS(Domain Name System)
A
Port 53
9
Q
DHCP(Dynamic Host Configuration Protocols)
A
Ports 67 and 68
10
Q
Telnet(Telecommunication Network)
A
Port 23
11
Q
SSH(Secure Shell)
A
Port 22
12
Q
SNMP(Simple Network Management Protocol)
A
Port 161
13
Q
NTP(Network Time Protocol)
A
Port 123
14
Q
MSA(Message Submission Agent)
A
Port 587
15
Q
SMB(Server Message Block)
A
Port 445
16
Q
SIP(Session Initiation Protocol)
A
Ports 5060 and 5061
17
Q
RDP(Remote Desktop Protocol)
A
3389
