Ports and Protocols Flashcards
FTP
File Transfer Protocol
Provides insecure file transfer
Port 20, 21
SSH
Secure Shell
Provides secure remote control of another machine using a text-based environment
Port 22
SFTP
Secure file transfer protocol
Provides secure file transfer
Port 22
Telnet
Provides insecure remote control of another machine using a text-based environment
Port 23
SMTP
Simple Mail Transfer Protocol
Provides the ability to send emails over the network
Port 25
DNS
Domain Name System
Converts domain names to IP addresses, and IP addresses to domain names
Port 53
DHCP
Dynamic Host Control Protocol
Automatically provides network parameters to your clients, such as their assigned IP address, subnet mask, default gateway, and the DNS server they should use
Port 67, 68
TFTP
Trivial File Transfer Protocol
Used as a lightweight file transfer method for sending configuration files or network booting of an operating system
Port 69
HTTP
Hypertext Transfer Protocol
Used for insecure web browsing
Port 80
POP3
Post Office Protocol Version Three
Used for receiving incoming emails
Port 110
NTP
Network Time Protocol
Used to keep accurate time for clients on a network
Port 123
NetBIOS
Network Basic Input/Output System
Used for file or printer sharing in a windows network
Port 139
IMAP
Internet Mail Application Protocol
A newer method for retrieving incoming emails which improves upon the older POP3
Port 143
SNMP
Simple Network Management Protocol
Used to collect data about network devices and monitor their status
Port 161, 162
LDAP
Lightweight Directory Access Protocol
Used to provide directory services to your network
Port 389
HTTPS
Hyper Text Transfer Protocol - Secure
Used for secure web browsing
Port 443
SMB
Server Message Block
Used for Windows file and printer sharing services
Port 445
Syslog
System Logging Protocol
Used to send logging data back to a centralized server
Port 514
SMTP TLS
Simple Mail Transfer Protocol Transport Layer Security
Secure and encrypted way to send emails
Port 587
LDAPS
Lightweight Directory Access Protocol - Secure
Provides secure directory services
Port 636
IMAP over SSL
Internet Message Access Protocol over SSL
Secure and encrypted way to receive emails
Port 993
POP3 over SSL
Post Office Protocol Version 3 over SSL
Secure and encrypted way to receive emails
Port 995
SQL
Structured Query Language Server Protocol
Used for Communication from a client to the database engine
Port 1433
SQLnet Protocol
Used for communication from a client to an Oracle database
Port 1521
MySQL
Used for communication from a client to the MySQL database engine
Port 3306
RDP
Remote Desktop Protocol
Provides graphical remote control of another client or server
Port 3389
SIP
Session Initiation Protocol
Used to initiate VoIP and video calls
Port 5060, 5061
