Protocols & Ports Flashcards
To remember the holes.
1
Q
File Transfer Protocol (FTP)
A
20/21
TCP
2
Q
Secure Shell (SSH)
Secure File Transfer Protocol (SFTP)
A
22
TCP
3
Q
Telnet
A
23
TCP
4
Q
Simple Mail Transfer Protocol (SMTP)
A
25
TCP
5
Q
Domain Name System (DNS)
A
53
UDP
6
Q
Dynamic Host Configuration Protocol (DHCP)
A
67/68
UDP
7
Q
Trivial File Transfer Protocol (TFTP) 😏
A
69 😉
UDP
8
Q
Hypertext Transfer Protocol (HTTP)
A
80
TCP
9
Q
Post Office Protocol v3 (POP3)
A
110
TCP
10
Q
Network Time Protocol (NTP)
A
123
UDP
11
Q
Internet Message Access Protocol (IMAP)
A
143
TCP
12
Q
Simple Network Management Protocol (SNMP)
A
161/162
UDP
13
Q
Lightweight Directory Access Protocol (LDAP)
A
389
TCP and UDP
14
Q
Hypertext Transfer Protocol Secure (HTTPS) [Secure Sockets Layer (SSL)]
HTTPS [Transport Layer Security (TLS)]
A
443
TCP
15
Q
Server Message Block (SMB)
A
445
TCP
