Network service: What are they, what are they for and which currently exist?

Network services have been used for several years with the aim of being able to facilitate communication between two or more computers. This in order to be able share resources, whether they are hardware or software What programs, applications, information, data, files among others.

These types of networks allow device sharing such as printers or programs with the other computers connected to the network. An ideal tool for most companies or study houses where they have to share the same information on several computers.

All this has been designed with the aim of being able to facilitate communication between users, and in turn improve data security and integrity. In accordance with all this, here we explain a little more about these networks and which of them exist today.

What is a network service and what is it for in computing?

Network services are a set of equipment and software connected between Yes through physical or wireless devices where they are responsible for send or receive information by means of electrical impulses or electromagnetic waves to be able to carry out the transport of the data. They are usually usually share resources, information and offer some special services.

All of this is also known as a computer network, computer network, computer network, or communication networkwhere it is required a sender, a message, the medium and a receiver for its operation.

These types of networks were created with the purpose of being able to share information remotely through a process that provides reliability and security, as well as power increase the speed of data transmission.

One of the clearest examples of this type of network is the Internetwhich we use daily without knowing that it is one of the largest computer networks in the world. This is how they exist every day millions of computers connected at different points and that interconnect to be able share information and resources one with the others.

It is important to mention that the operation of all this is due to the different computer standardsas it is the TCP/IP, which is used as a reference to OSI model.

How does a service work within a network and what is its importance?

Computer networks are a set of computers or devices interconnected with each other that allow what is sharing information and resources with each otherso you can use a single printer or a hard drive from various devices, among many other elements.

Wi-Fi networks are another network servicebut of wirelesslyand it is worth mentioning that it works completely the same as traditional network services. Therefore, for the operation of this service it is necessary to have five essential components which we explain below:

Transmitter

In order to start this process it is essential to have the first piece, in this case it is the transmitter who will be who creates the signal or request from the computer.

encoder

Next is request must go through the encoderwho is who is in charge of encode signal so that it can be transmitted over the wire and thus reach your destination.

Line

In the event that a wireless network the means of transmission will be radio frequency waves or infrared. They are responsible for transmitting the information received to the address of the device that has been indicated from the interface.

decoder

When information or resources are to be shared, the device that is going to receive this information also has its own system to be able to convert each of the electrical signals into data that can be processed by the computer. These are usually the PCI or network adapters, They are mostly integrated into the CPU motherboard and they work with different types of speeds.

Receiver

Finally when information or resources have gone through all these processesthe receiving device receives the signal that the sender has transmitted and which has been processed and converted into data that can be read by the computer.

What are the types of network services that exist?

network services are configured in local networks so that they can take care of maintain safety and stable and correct operation, this is how they are responsible for helping the local network so that it works without problems. Currently there are different types of network services which we will show you below.

Dynamic Host Configuration Protocol (DHCP)

This protocol is a Internet Engineering Task Force standardwhich is designed to be able to reduce what is administrative burden and in turn the complexity of host configuration in what they are transmission control protocols that are web-based.

Regarding the configuration process of this protocol It is usually done automatically each time the computer:

• uses client computers for request and accept configuration information TCP/IP of DHCP servers.
• takes care of manage IP addresses and other parameters related to the configuration.
• is constantly using DHCP relay agents in order to transfer information between DHCP server and client.

Simple Network Management Protocol (SNMP)

This standard is mainly used for what it is TCP/IP network management, where it is currently one of the most popular thanks to its simplicity of implementation, as well as short consumption time that requires the processor and network resources.

It currently has a more advanced version known as SNMPv2which is compatible for OSI-based networks. This protocol works through sent message what is known as data unit protocols to different sites on the network, where it is made up of two elements, such as agents and workstations.

In this case the agent refers to what the elements are embedded in network devices such as servers, routers, switches, among others. They are responsible for collect all the information locally and in turn store it for the next hits. Where each of the agents has a local base of relevant information, which is called “Management Information Base”.

Email

The e-mails are made up of two subsystemsone of them are the user agents and the other the message transfer agents. In the case of user agentsare known as a mail reader that accepts different commands to be able to receive and reply to messages.

Some of them feature a very well-designed interface that works through icons or menus, while others work for one-character commands from the keyboard. However, function-wise they are both the same.

In the case of message transfer agentsthey take care of transfer the email message between the hostsfor this they use the Simple Email Transfer Protocol or SMTP. In general, the messages go through different MTA’s as they go to reach their destination.

File Transfer Protocol (FTP)

This protocol is responsible for providing users with a simple and fast way to be able to transfer information between computers over an Internet network where you use TCP, IP and transmission control protocol, which are responsible for carrying out file upload and download functions.

Currently the TCP/IP is one of the most important protocols on the Internet, while IP takes care of direct traffic to different Internet addresses. In the case of FTP it’s necessary that both ports are opennamely the server and the client so that what is can be facilitated the exchange of information.

Therefore, when using the FTPthe computer makes a communication with the number of port that is next to it to receive the information from the controlleras well as the IP address to which you want to transfer the file.

Domain Name System (DNS)

Last we have the DNS, which is the one that allows translate the name of a website or a domain into an address IP so that it can be found more easily by users. In the same way this server runs a process where the URL or web address with the set of data base make a conversion for what is the IP address.