Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Protocols & Ports

the well known ports

Protocol AcronymProtocol NamePortUse
FTP File Transfer Protocol TCP Port 21 for control signals TCP Port 20 for data transmits data in cleartext
TFTP Trivial File Transfer Protocol UDP Port 69 typically transmits smaller amounts of data
SSH Secure Shell TCP Port 22 encrypts traffic in transit. can also connect to remote systems
SSL Secure Sockets Layer was used to secure http, but it has been compromised
TLS Transport Layer Security replaces SSL, secures non-encrypted data.
IPSec Internet Protocol Security UDP Port 500 native to ipv6; encrypts IP traffic
SFTP Secure File Transfer Protocol TCP Port 22 secure implementation of FTP using SSH to transmit files in an encrypted format
FTPS File Transfer Protocol Secure TCP Port 989 TCP Port 990 extension of FTP using TLS
SMTP Simple Mail Transfer Protocol TCP Port 25 transfers email between clients and servers. STARTTLS recommended
STARTTLS a command recommended over SSL and TLS to initialize secure connections while on the same port
POP3 Post Office Protocol v3 TCP Port 110 transfers emails from servers to clients. STARTTLS recommended
IMAP4 Internet Messaging Access Protocol v4 TCP Port 143 stores email on an email server. STARTTLS recommended
HTTP HyperText Transfer Protocol TCP Port 80 transmits web traffic on intra/internets. HTML is the language used to display web pages
HTTPS HyperText Transfer Protocol Secure TCP Port 443 encrypts web traffic for secure transit. uses SSL or TLS
Kerberos UDP Port 88 uses a Key Distribution Center to issue timestamped tickets
LDAP Lightweight Directory Access Protocol TCP Port 389 protocol used to communicate with management directories
LDAPS Lightweight Directory Access Protocol Secure TCP Port 636 encrypts ldap data
RDP Remote Desktop Protocol TCP Port 3389 UDP Port 3389 connects to systems from remote locations
DNS Domain Name System UDP Port 53 resolves host names to ip addresses
Created by: octaviusewoods
Popular Computers sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards