Ports/ TCP vs UDP/Protocol's

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Author:
mavrickabb
ID:
231521
Filename:
Ports/ TCP vs UDP/Protocol's
Updated:
2013-08-27 10:13:20
Tags:
Ports
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Description:
Ports
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  1. FTP ( File Transfer Protocol )
    What is the port number?
    What is its function?
    • Port : 21
    • Function: Allows computers to transfer files back and forth.
  2. TELNET (TELecommunication NETwork)
    Port Number ?
    Function ?
    • Port Number: 23 
    • Function: Provides remote access to other host within the CLI (Command Line Interface)
  3. SMTP (Simple Mail Transfer Protocol)
    Port?
    Function?
    • Port: 25 (inbound)
    • Function: Send email for host, goes to an SMTP server at the ISP and is then sent off to its destination.
  4. DNS (Domain Name System)
    Port?
    Function?
    • Port:53
    • Function: is the group of serves on the Internet that translate domain names to IP addresses
  5. HTTP (Hyper Text Transfer Protocol)
    Port?
    Function?
    • Port: 80
    • Function: Transfer web pages and other web-based material form a web server to your web browser.
  6. POP3 (Internet Message Access Protocol)
    Port?
    Function?
    • Port: 110 
    • Function: Used by email clients to retrieve incoming email form mail server.
  7. IMAP (Internet Message Acces Protocol)
    Port?
    Function?
    • Port:143
    • Function: is an emial protocol thatenbles messages to remain on the emial server. Think Gmail
  8. HTTPS (Hypertext Transfer Protocol Secure)
    Port?
    Function?
    • Port: 443
    • Function: an encrypt version of HTTP. use for when making purchase/payments online or logging in to a confidential website.
  9. RDP (Remote Desktop Protocol)
    Port?
    function?
    • Port: 3389
    • Function : make connections to remote computers and alowing full remote control
  10. TCP (Transmission Control Protocol)
    Function?
    • known as connection-oriented sessions.
    • every packet sent is checked for delivery, if the receiving computer doesn't receive a packet, it ask to sending computer to re-transmit the packet again.
  11. UDP (User Datagram Protocol)
    Function?
    • Known as connection-less sessions 
    • if a packet is dropped, it is not asked for again. used in steaming media
  12. DHCP  (Dynamic Host Configuration Protocol)
    What is used for ?
    Used to automatically assign IP addresses to host.
  13. SNMP (Simple Network Management Protocol)What is it used for ?
    Used as the standard for managing and monitoring devices on your network.
  14. SMB ( Server Message Blocks)What is it used for ?
    Provide access to shared items such as files and printers.
  15. LDAP ( Lightweight Directory Access Protocol)What is it used for?
    Used to access and maintain distributed directories of informantion such as the kind involved with Microsoft domains.
  16. What is a Protocol?
    Agreement that govern the procedures used to exchange information between cooperating entities. 

    Ex. as in how should data be sent, how often it is sent, how to recover from transmission errors, and how who to receive that information

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