PORTS Flashcards by Andy Mendoza

FTP

TCP/20/21
Transfer files/control port

File Transfer Protocol

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SSH

TCP/22

Secure Shell
-Transmit data through a remote connection, securely

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Telnet

TCP/23

Telecommunication Network
-Connect remotely, lacks security

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SMTP

TCP/25

Simple Mail Transfer Protocol
-send email, device to server

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DNS

UDP/53

Domain Name System
-Converts names to IP addresses

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DHCP

UDP/67/68

Dynamic Host Configuration Protocol
-IP address assigned from pool, renews in certain time

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HTTP

TCP/80

Hypertext Transfer Protocol
-Web server communication

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HTTPS

TCP/443

Hypertext Transfer Protocol Secure
-Web server communication with encryption

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POP3

TCP/110

Post Office Protocol version 3
-Receive email (basic)

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IMAP4

TCP/143

Internet Message Access Protocol v4
-Receive email, save in server

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SMB/CIFS

TCP/445 (NetBIOS-less)

Server Message Block/Common Internet File System
-Used by Windows, file and printer sharing

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NetBIOS name services

UDP/137

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NetBIOS session service

TCP/139

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SNMP

UDP/161/162
Queries/Traps

Simple Network Management Protocol
-Gather statistics from network devices

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LDAP

TCP/389

Lightweight Directory Access Protocol
-Store and retrieve info in a network directory

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RDP

TCP/3389

Remote Desktop Protocol
-Share a desktop from a remote location

SFTP

TCP/22

Secure File Transfer Protocol
- Send files securely (SSH)

TFTP

UDP/69

Trivial File Transfer Protocol
-Uses one connection to transfer files between client and server

NTP

UDP/123

Network Time Protocol
- synchronize with computer clock time sources in a network.

Syslog

UDP/514

use to send event data logs to a central location for storage. Logs can then be accessed by analysis and reporting software to perform audits, monitoring, troubleshooting, and other essential IT operational tasks.

SMTP TLS

TCP/587

Simple Mail Transfer Protocol Secure
-send email, device to server securely; encrypted

LDAPS

TCP/636

Lightweight Directory Access Protocol (over SSL)
-Store and retrieve info in a network directory, securely

IMAP over SSL

TCP/993

Internet Message Access Protocol
-Receive email, save in server, over TSL

POP3 over SSL

TCP/995

Post Office Protocol version 3
-Receive email, over TSL

SQL Server

TCP/1433 Structured Query Language Server -connects to the SQL database instance

SQLnet

TCP/1521 Structured Query Language Net -Oracle's remote data access protocol that enables client-server and server-server communications across networks

MySQL

TCP/3306 free, open-source database solution

SIP

TCP and UDP/5060/5061 Session Initiation Protocol -Port 5060 is commonly used for non-encrypted signaling traffic, whereas port 5061 is typically used for traffic encrypted with Transport Layer Security

ICMP

Internet Control Message Protocol -generates errors to share with the sending device in the event that any of the data did not get to its intended destination.

GRE

Generic Routing Encapsulation - a protocol that encapsulates packets in order to route various protocols over Internet Protocol (IP) networks

IPSec

Internet Protocol Security -a set of communication rules or protocols for setting up secure connections over a network (AH/ESP)

Authentication Header -This authenticates the sender and it discovers any changes in data during transmission; incompatible with NAT.

ESP

Encapsulating Security Payload -performs authentication for the sender and encrypts the data being sent (confidentiality).