Selecting Secure Protocols Flashcards
What is a Protocol?
Set of rules or procedures for transmitting data between electronic devices
What is Telnet?
insecure protocol that was traditionally used for remote command line administration of your servers and network devices.
What SSH?
Secure Shell
Network protocol for securely connecting and communicating with remote devices and systems over an unsecured network
Always select this instead of telnet
What is a Port?
Logical construct that identifies specific processes or services in a given system
What are Well-Known Ports?
used by system processes or services, and consist of port ranges, again from 0 to 1023
What are Registered Ports?
usually used by software applications and utilized a port number between 1024 and 49,151.
What are Dynamic ports or Private ports?
often used for client side connections, and these range again from 49,152 to port number 65,535.
What is a Transport Method?
refers to the way data is moved from one place to another, usually using either TCP or UDP to transmit the data.
What is TCP?
Transmission Control Protocol
connection-oriented protocol that ensures data is delivered without any errors.
What is UDP?
connectionless protocol that doesn’t guarantee delivery, and instead simply sends data grounds without establishing a connection, and UDP does not provide any error checking or recovery services.
