Network News Transport Protocol or also known as NNTP, is a protocol that has been created primarily for what it is reading and posting news articles on Usenet (User Network). Its function is to push news articles between servers.
NNTP started working from March 1986where it was created by Brian Kantor and Phil Lapsley, in collaboration with Stan Barber and Erik Fair. And it was not until 2006 when the improvements of this protocol including new tools in its operation.
Therefore, in this post we are going to explain a little more about what the protocol for network news transfersas well as its main operation.
What is NNTP and what is its role in a computer network?
The NNTPis he news transfer protocol which is mainly used by the network “Usenet Internet Service”, which is based on strips of text sent over 7-bit ASCII TCP channels. It is mainly used to power upload, download and transfer different news articles between servers.
In the same way, all this was created to give users the opportunity to store new articles on a server with a central databaseallowing visitors to selections only the element they want to read.
The operation of this tool is very simple, it has a server where it is located hosted all news articlesand to him they connect clients over the network. That is to say, it establishes connection between server and client. What it allows to achieve a very low number of duplicate articles.
All this becomes an advantage for the news service, avoiding that there is a duplication of all previous news. All this connection that is established is executed through the tcp protocol, where port 119 is reserved for NNTP. But there are some exemptions, and that is when the client connects to the server through the SSL used is port 563.
It is important to mention that each of the articles saved on the server is referenced with the name of the client’s machine that published it. This reference is found in the call field nntp-posting-host.
How does the network news transport protocol work?
This protocol uses two methods to be able to transfer the news in network, for this use the passive and active method, which we show you below:
Pushing method (Active)
This first method consists in client sends article to serverthis will returns a response code which will let you know that you already have said text, something like the famous delivery messages. All this is done under the order of IHAVE msgid. A method that is also known as Push.
However, this method has a disadvantage, and is that the text is searched for individually, This forces there to be a great number of accesses to the database and one heavy load on serverwhich can cause delays or delays in its operation.
Pulling method (Passive)
In this case, it is about being able to obtain a list with a certain number of items whose date is later than the one previously specified by the client. All this works under the order NEWSNEWS.
Once the list has been displayed, the client must only select those that he does not have from the list so that they can be transferred to him. All this technique is also known as throw. This whole process is constantly regulated by a strict control by the server, considering that it can there is confidential information and that can be seen by other clients.
What are the benefits of the NNTP protocol in a computer network?
Every protocol is created and launched to the market with the aim of providing a ease to its usersin this case NNTP takes care of which is the transfer of articles and thus make this process easier for customers.
Therefore, here we present you the main benefits of using this tool in computer networks:
- Clients have the opportunity to list available newsgroups so that they are downloaded and sent through the servers.
- NNTP allows publish articles by specific commands on the servers.
- Every time a text is published, it is being creating a new articletherefore, the only information that will appear will be the message header. While at the time of send a text it is one that is already created and exists, therefore, complete information about it will appear in the header. All this offers an indicator to know when it was posted the message.
- Both readers and transfer customers can perform the text downloads.
- allows a simultaneous client access to a single piece of news or to several.
What other protocols for transporting news networks exist and how are they different from this one?
The Internet has become one of the largest entities in the world and at the same time something very complex. This is how many exist protocols specialized in network transport and that work daily in order to improve and facilitate the experiences of each of the users.
Because of this, Here we show you other protocols specialized in network transport:
Hypertext Transfer Protocol (HTTP)
http is currently one of the most popular and used on the Internethe himself is in charge of driving the transfer of web pages that are sent through browsers. This is how this protocol is responsible for handling a large number of pages such as the World Wide Web (www).
Thanks to World Wide Web, HTTP protocol has become one of the most popular on the netsince today there are millions of www pages. They add it daily.
Simple Mail Transfer Protocol (SMTP)
Usually everyone the e-mails that are sent and received from the Internet they have to pass from one server to another, they do this thanks to a single electronic exchange protocolwhich is known as SMTP. He himself takes care of boost message delivery to each of your clients, using the most popular emails such as Gmail, Yahoo, Microsoft Outlook, among others.
File Transfer Protocol (FTP)
As we already know, most of the web pages in the world use the HTTP protocol. Without However, there is a very high probability that many of them carved their way into servers where different protocols resideas is that of FTP file transferbeing this the main protocol for the transfer of entire files from one computer to another over an internet network.
It is also important to mention that FTP has a variant which is SFTP, this allows confidential file transfer through a secure environment, preventing these from ending up in the hands of the wrong customers.
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