Ports Flashcards
Port for: File Transfer Protocol
(FTP)
20, 21
Provides insecure file transfer
Port for: Secure Shell
(SSH)
22
Provides secure remote control of another machine using a text-based environment
Port for: Secure File Transfer Protocol
(SFTP)
22
Provides secure file transfer
Port for: Telnet
23
Provides insecure remote control of another machine using a text-based environment
Port for: Simple Mail Transfer Protocol
(SMTP)
25
Provides the ability to send emails over the network
Port for: Domain Name System
(DNS)
53
Converts domain names to IP addresses, and IP addresses to domain names
Port for: Dynamic Host Configuration Protocol
(DHCP)
67, 68
Automatically provides network parameters, such as assigned IP address, subnet mask, default gateway, and the DNS server
Port for: Hypertext Trasfer Protocol
(HTTP)
80
Used for insecure web browsing
Port for: Post Office Protocol Version Three
(POP3)
110
Used for receiving incoming emails
Port for: Network Basic Input/Output System
(NetBIOS)
137, 139
Used for file or printer sharing in a Windows network
Port for: Internet Mail Application Protocol
(IMAP)
143
A newer method of retrieving incoming emails which improves upon the older POP3
Port for: Simple Network Management Protocol
(SNMP)
161, 162
Used to collet data about network devices and monitor their status
Port for: Lightweight Directory Access Protocol
(LDAP)
389
Used to provide directory services to your network
Port for: Hypertext Trasnfer Protocol - Secure
(HTTPS)
443
Used as a secure and encrypted version of web browsing
Port for: Server Message Block
(SMB)
445
Used for Windows file and printer sharing services
