Networking Port Numbers

All of the port numbers that are needed to master comptia a+

HTTP (Hypertext Transfer Protocol)

Port 80

HTTPS (HTTP Secure)

Port 443

DNS (Domain Name System)

Port 53 (UDP/TCP)

DHCP (Dynamic Host Configuration Protocol)

Ports 67, 68 (UDP)

FTP (File Transfer Protocol

Ports 20, 21

TFTP (Trivial FTP)

Port 69 (UDP)

SMB/CIFS (Server Message Block)

Port 445

AFP (Apple Filing Protocol)

Port 548

SMTP (Simple Mail Transfer Protocol)

Port 25

POP3 (Post Office Protocol v3):

Port 110

IMAP (Internet Message Access Protocol)

Port 143

SSH (Secure Shell)

Port 22 (Encrypted)

Telnet:

Port 23 (Unencrypted/Legacy)

RDP (Remote Desktop Protocol):

Port 3389

SNMP (Simple Network Management Protocol):

Ports 161, 162 (UDP)

LDAP (Lightweight Directory Access Protocol)

Port 389

LDAPS (LDAP over SSL)

Port 636

NetBIOS/NetBT

Ports 137, 138, 139

SLP (Service Location Protocol)

Port 427