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Types of Internet and network Protocols

Monday, 06 July 2015

The Internet is not all about www (world wide web) that we interact with every day. The web is only one of the most used protocols on the internet. For example, you don’t search on the internet you search on the web because not all of the internet protocols are searchable!


There are various kinds of protocols that make communication between devices possible. We have lots of protocols on the internet and network. A network protocol is an established set of rules that determine how data is transmitted between different devices in the same network. Let’s take a look at network and internet protocols.


Transmission Control Protocol (TCP): TCP protocol (as it is also referred to in short form) can only connect two endpoints, it is also called a peer-to-peer protocol and it is a trustable protocol in terms of delivering a message from source to destination. 


Internet Protocol (IP): it is used for routing and addressing packets of data from source to destination through the network.  Every device or domain that connects to the Internet is assigned an IP address. The fourth version of IP (IPv4) is still being used by domains and devices although IPv6 has more permutations.


User Datagram Protocol (UDP): is another communication protocol used in time-sensitive transmission or so-called low-latency and loss-tolerating like video playback. 


Post office Protocol (POP): It is the most used protocol for transferring messages through email.


Simple mail transport Protocol (SMTP): it is also used to send and receive email and most of the time it is paired with IMAP or POP3.


File Transfer Protocol (FTP): FTP is the protocol used to transmit files between computers connected to each other by a TCP/IP network, such as the Internet.


Hyper Text Transfer Protocol (HTTP): HTTP is the protocol used to transmit all data present on the World Wide Web. This includes text, multimedia, and graphics. It is the protocol used to transmit HTML, the language that makes all the fancy decorations in your browser. It works on TCP/IP.


Hyper Text Transfer Protocol Secure (HTTPS): HTTPS uses an encryption protocol to encrypt communications. The protocol is called Transport Layer Security (TLS), although it is known as Secure Sockets Layer (SSL). HTTPS also uses TCP (Transmission Control Protocol) to send and receive data packets, but it does so over port 443


SNMP (Simple Network Management Protocol): used for the management and monitoring of connected devices in Internet Protocol networks.


PPTP (Point To Point Tunnelling Protocol): a network protocol that enables the secure transfer of data from a remote client to a private enterprise server by creating a virtual private network (VPN) across TCP/IP-based data networks.


L2TP (Layer Two Tunnelling Protocol): extension of the Point-to-Point Tunneling Protocol (PPTP) used by internet service providers (ISPs) to enable virtual private networks (VPNs). 


There are other types of protocols that are less popular than the above ones: 

  • ARP (Address Resolution Protocol)
  • DHCP (Dynamic Host Configuration Protocol)
  • IMAP4 (Internet Message Access Protocol)
  • SIP (Session Initiation Protocol)
  • RTP (Real-Time Transport Protocol)
  • RLP (Resource Location Protocol)
  • RAP (Route Access Protocol)
  • TFTP (Trivial File Transfer Protocol)

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