Ports Flashcards
File Transfer Protocol | FTP
Ports 20 and 21
Provides insecure file transfers
Secure Shell | SSH
Port 22
Provides secure remote control of another machine using a text-based environment
Secure File Transfer Protocol | SFTP
Port 22
Provides secure file transfer
Telnet
Port 23
Provides insecure remote control of another machine using a text-based environment
Simple Mail Transfer Protocol | SMTP
Port 25
Provides the ability to send emails over the network
Domain Name System | DNS
Port 53
Converts domain names to IP addresses and vice versa
Dynamic Host Control Protocol | DHCP
Port 67 and 68
Automatically provides network parameters to your clients, such as assigned IP address, subnet mask, default gateway, and the DNS server they should use
Trivial File Transfer Protocol | TFTP
Port 69
Used as a lightweight file transfer method for sending configuration files or network booting of an OS
Hypertext Transfer Protocol | HTTP
Port 80
Used for insecure web browsing
Post Office Protocol v3 | POP3
Port 110
Used for receiving incoming emails
Network Time Protocol | NTP
Port 123
Used to keep accurate time for clients on a network
Network Basic Input/Output System | NETBIOS
Port 139
Used for file or printer sharing in a Windows network
Internet Mail Application Protocol | IMAP
Port 143
Newer method of retrieving incoming emails which improves on POP3
Simple Network Management Protocol | SNMP
Ports 161 and 162
Used to collect data about network devices and monitor their status
Lightweight Directory Access Protocol | LDAP
Port 389
Used to provide directory services to your network
Hypertext Transfer Protocol Secure | HTTPS
Port 443
Secure and encrypted version of HTTP
Server Message Block | SMB
Port 445
Used for Windows file and printer sharing services
System Logging Protocol | Syslog
Port 514
Used to send logging data back to a centralized server
Simple Mail Transfer Protocol Transport Layer Security | SMTP TLS
Port 587
Secure and encrypted way to send emails
Lightweight Directory Access Protocol - Secure | LDAPS
Port 636
Provides secure directory services
Internet Message Access Protocol over SSL | IMAP over SSL
Port 993
Secure and encrypted way to receive emails
Post Office Protocol v3 over SSL | POP3 over SSL
Port 995
Secure and encrypted way to receive emails
Structured Query Language Server Protocol | SQL
Port 1433
Used for communication from a client to a database engine
SQLnet Protocol
Port 1521
Used for communication from a client to an Oracle database
