Ports and Protocols Flashcards
What is File Transfer Protocol (FTP)?
Provides insecure file transfer
What ports does FTP use?
20 (data port), 21 (control port)
What is Secure File Transfer Protocol (SFTP)?
Provides secure file transfers
What ports does SFTP use?
Port 22
What is Telnet?
Provides insecure remote control of another machine using a text-based environment
What port does Telnet use?
Port 23
What is Simple Mail Transfer Protocol (SMTP)?
Provides the ability to send emails over the network
What port does SMTP use?
Port 25
What is Domain Name Service (DNS)?
Converts domain names to IP addresses, and IP to domain names
What port does DNS use?
Port 53
What is Dynamic Host Control Protocol (DHCP)?
Automatically provides network parameters to your clients, such as their assigned IP address, subnet mask, default gateway, and the DNS server they should use
What port does DHCP use?
Port 67, 68
What is Trivial File Transfer Protocol (TFTP)?
Used as a lightweight file transfer method for sending configuration files or network booting of an operating system
What port does TFTP use?
Port 69
What is Hypertext Transfer Protocol (HTTP)?
Used for insecure web browsing
What port does HTTP use?
Port 80
What is Post Office Protocol 3 (POP3)?
Used for receiving incoming emails
What port does POP3 use?
Port 110
What is Network Time Protocol (NTP)?
Used to keep accurate time for clients on a network
What port does NTP use?
Port 123
What is Network Basic Input / Output System (NetBIOS)
Used for file or print sharing on a Windows network
What port does NetBIOS use?
Port 139
What is Internet Mail Application Protocol (IMAP)?
A newer method of retrieving incoming emails which improves upon the older POP3
What port does IMAP use?
Port 143
What is Simple Mail Transfer Protocol (SMTP)?
Used to collect data about network devices and monitor their status
What port does SMTP use?
Port 161, 162
What is Lightweight Directory Access Protocol (LDAP)?
Used to provide directory services to your network
What port does LDAP use?
389
What is Hypertext Transfer Protocol - Secure (HTTPS)
Used for secure web browsing
What is SSL?
Secure Socket Layer
What is TLS?
Transport Layer Security
What is Server Message Block (SMB)?
Used for Windows file printer sharing services
What port does SMB use?
Port 445
What is System Logging Protocol (Syslog)?
Used to send logging data back to a centralized server
What port does Syslog use?
Port 154
What is Simple Mail Transfer Protocol Transport Layer Security (SMTP)?
Secure and encrypt way to send emails
What port does SMTP use?
Port 587
What is Lightweight Directory Access Protocol (LDAP)?
Port 636
What is Internet Message Access Protocol over SSL?
Secure and encrypted way to receive emails
What port does Internet Message Access Protocol over SSL use?
Port 993
What is Post Office Protocol Version 3 over SSL (POP3 over SSL)?
Secure and encrypted way to receive emails
What port does Post Office Protocol Version 3 over SSL use?
Port 995
What is Structured Query Language (SQL)?
Used for communication from a client to the database engine
What port does SQL use?
1433
What is SQLnet Protocol?
Used for client communication from a client to an Oracle database
SQLnet port?
Port 1521
What is MySQL?
Used for communication from a client to the MYSQL database engineer
What port does MySQL use?
Port 3306
What is Remote Desktop Protocol?
Provides graphical remote control of another client or server
What port does RDP use?
Port 3389
What is Session Initiation Protocol (SIP)
Used to initiate VoIP and video calls
What port does SIP use?
Port 5060, 5061
How can you find open ports on Linux?
nmap -sS (syn scan) -O (find operating system) [ip address] | more
What is a GUI tool you can use to scan ports?
Zenmap
