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15 Cards in this Set

  • Front
  • Back

TCP

is reliable delivery


everything that sent is checked against this list to make sure.

UDP

the originated station never revives a acknowledgement


information is received as is.

servers use

non ephemeral port/ non changing port


numbers

client commonly use

ephemeral port that change to the session.

file transfer protocol

port 20 used to transfer files, delete files, manage file on a remote device. used on cmd and gui

secure shell

port 22 SSH uses encrypted channel

telnet

port 23 uses a terminal session for legacy devices that doesn't support encryption.

email ports include

imap uses port 143


smtp uses port 25

domain name system

converts a name to an IP address

web browsers use HTTP and HTTPS

hypertext protocol use port 80 - not encrypted




hypertext protocol secure port 443 - encrypted

sever message block is ...


netBIOS uses ports 138-139

its for older windows systems

newer windows machines dont need netBIOS


netBIOSless = direct over

port 445 is use to send info

MAC OS 's ports include



file services use port port 548




services location protocol tcp 427 / udp 427


used to list all devices on a network.

common network protocols

dhcp


snmp uses port udp 161 say whats the bandwidth



SIMULATION****

fill in the blanks for the 6 most common port numbers, i believe they were




DNS port 53


SMTP port 25


FTP port 20


SSH port 22


TELNET port 23