Ports and Protocols Flashcards
Provides insecure file transfers
File Transfer Protocol (FTP) Ports 20,21
Provides secure remote control of another machine using a text-based environment
Secure Shell (SSH) Port 22
Provides secure file transfers
Secure File Transfer Protocol (SFTP) Port 22
Provides the ability to send emails over the network
Simple Mail Transfer Protocol (SMTP) Port 25
Converts domain names to IP addresses, and IP address to domain names
Domain Name System (DNS) Port 53
Automatically provides network parameters to your clients, such as their assigned IP address, subnet mask, default gateway, and the DNS server they should use
Dynamic Host Control Protocol (DHCP) Ports 67, 68
- Used as a lightweight file transfer method for sending configuration files or networking booting of an operating system
- used by network administrators when they send configuration files or when they request configuration files from a router or switch
- used as a lightweight transfer method
Trivial File Transfer Protocol (TFTP) Ports 69
Used for insecure web browsing
Hypertext Transfer Protocol (HTTP) Port 80
- used for receiving incoming emails
* uses a store and forward method of communication
Post office Protocol Version Three (POP3) Port 110
- Used to keep accurate time for clients on a network
* created in 1985
Network Time Protocol (NTP) Port 123
Used for file or printer sharing in a Windows network
NETBIOS – Network Basic Input/Output System Port 139
A newer method of retrieving incoming emails which improves upon the older POP3
Internet Mail Application Protocol (IMAP) Port 143
Used to collect data about network devices and monitor their status
Simple Network Management Protocol (SNMP) Ports 161, 162
Used to provide directory services to your network
Lightweight Directory Access Protocol (LDAP) Port 389
Used for secure web browsing
Hypertext Transfer Protocol – Secure (HTTPS) Port 443
Used for Windows file and printer sharing services
Service Message Block (SMB) Port 445
Used to send logging data back to a centralized server
System Logging Protocol (Syslog) Port 514
Secure and encrypted way to send emails
Simple Mail Transfer Protocol Transport Layer Security (SMTP TLS) Port 587
Provides secure directory services
Lightweight Directory Access Protocol – Secure (LDAPS) Port 636
Secure and encrypted way to receive emails
Internet Message Access Protocol over SSL (IMAP over SSL) port 993
Secure and encrypted way to receive emails
Post Office Protocol Version 3 over SSL (POP3 over SSL) Port 995
Used for communication from a client to the database engine
Structured Query Language Server Protocol (SQL) Port 1433
Used for communication from a client to an Oracle database
SQLnet Protocol Port 1521
Used for communication from a client to the MySQL database engine
MySQL Port 3306
Provides graphical remote control of another client or server
Remote Desktop Protocol (RDP) Port 3389
Used to initiate VolP and video calls
Session Initiation Protocol (SIP) Ports 5060, 5061
