N+ N10-009 Port numbers

CompTIA N+ study guide

FTP - File Transfer Protocol

20/21

SSH/SFTP - Secure File Transfer Protocol

22

Telnet

23

SMTP - Simple Mail Transfer Protocol

25

DNS - Domain Name System

53

DHCP -
Dynamic Host Configuration Protocol

67/68

TFTP - Trivial File Transfer Protocol

69

HTTP - Hypertext Transfer Protocol

80

NTP - Network Time Protocol

123

SNMP - Simple Network Management Protocol

161/162

LDAP - Lightweight Directory Access Protocol

389

HTTPS - Hypertext Transfer Protocol Secure

443

SMB - Server Message Block

445

Syslog

514

SMTPS - Simple Mail Transfer Protocol Secure

587

LDAPS - Lightweight Directory Access Protocol over SSL

636

SQL - Structured Query Language (SQL) Server

1433

RDP - Remote Desktop Protocol

3389

SIP - Used to initiate VoIP and video calls
         Session Initiation Protocol

5060, 5061