advance Ports Flashcards
What is the purpose of FTP?
Allow users to move files between computers, auth with username and pass
FTP stands for File Transfer Protocol
What port is used for FTP control channel?
tcp/21
This is the port for control commands in FTP
What does SFTP stand for?
Secure File Transfer Protocol
SFTP operates over SSH and provides an encrypted communication link
What port is used for SFTP?
tcp/22
SFTP uses the same port as SSH
What is Telnet primarily used for?
Login to devices remotely, console access
Telnet allows remote access to network devices
What port does Telnet use?
tcp/23
Telnet operates over TCP
What is SMTP used for?
Server to server email transfer, send mail from a device to a mail server
SMTP stands for Simple Mail Transfer Protocol
What port does SMTP use?
tcp/25
This port is used for sending emails
What is the function of DNS?
Translate Domain name into IP address
DNS stands for Domain Name System
What port is used by DNS?
udp/53
DNS queries use UDP
What does DHCP stand for?
Dynamic Host Configuration Protocol
DHCP automatically configures IP addresses and other network settings
What ports are used by DHCP?
67, 68
DHCP uses both ports for different functions
What is TFTP?
simple, lightweight protocol used for transferring files between network devices
TFTP is often used to transfer the initial boot files
TFTP stands for Trivial File Transfer Protocol
What port does TFTP use?
69
TFTP operates over UDP
What is HTTP used for?
Allows users to communicate and exchange data on the internet
HTTP stands for Hypertext Transfer Protocol
What port does HTTP use?
80
This is the standard port for HTTP traffic
What is POP3?
Allows email clients to download emails from a mail server
POP3 stands for Post Office Protocol Version 3
What port does POP3 use?
110
This port is used for retrieving emails
What is SMB with NetBios used for?
Sharing files, printers and other resources across a network
SMB stands for Server Message Block
What ports are used by SMB with NetBios?
udp/137, tcp/139
UDP is used for device discovery, TCP for session establishment
What is the difference between SMB and SMB with NetBios?
Direct SMB communication over TCP without NetBios transport
SMB uses tcp/445 for direct communication
What port does SMB use?
tcp/445
This port allows direct SMB communication
What does IMAP stand for?
Internet Message Access Protocol
IMAP allows users to retrieve emails from a mail server
What port does IMAP use?
143
IMAP is used for accessing email on the server
