الأحد، 3 مايو 2020

Understanding Hybrid topology and advantages and disadvantages

Understanding Hybrid topology and advantages and disadvantages

This type of network topology include Bus topology, Ring topology, Mesh topology, Tree topology, and Hybrid topology. One network topology that is pretty much applied to large-scale network is the Hybrid topology.

Hybrid topology is formed from various topologies and network technology. This topology is often used by companies that take over other companies. Because when the network of both companies must be unified, there will be merging of different technologies and network topology.

As a combination of several network topology, Hybrid topology has many plus value. But still this topology has a weakness compared to other types of network topology. In this article, Nesabamedia will discuss the sense of Hybrid topology along with characteristics, as well as the advantages and disadvantages of this topology.

Understanding Hybrid Topology

Hybrid topology is a merging of several (two or more) different network topologies. For example, when a network using Ring topology, combined with other network using star topology; Then a new topology formed from the combination of these two network topology is called as Hybrid topology.

If the merged network has the same topology type, merging the two networks is not a hybrid topology. For example the network with a bus topology coupled with other networks that also use the bus topology, the merging of the two networks remains a bus topology, not a hybrid topology.
Understanding Bridge and functions and how Bridge works on the computer network

Understanding Bridge and functions and how Bridge works on the computer network

For Internet networks with too many computers relying solely on a single LAN network, usually in the event of a network problem, all computers will be impacted.

Not to mention if the geographical condition of the building is large enough and wide, it will certainly be a problem if there is only one LAN network.

Addressing this, there are tools that are able to anticipate the problem while improving LAN performance, such as a repeater, bridge, or router. In this article, it will be discussed about bridge definition, bridge function, bridge advantages and disadvantages, and bridge work.

Definition of bridges

Bridge or Network Bridge in the Indonesian term called a network bridge is a network component that is widely used to expand the network or create a network segment.

Bridge is capable of connecting fellow LAN network (Local Area Network) computer. In addition, bridges are also used to connect different types of computer networks such as Ehernet. Bridge will map the Ethernet addresses of each point in each network segment and then select and allow only transfer of data required over the network.

Bridges usually use a tree topology. That is, there is only a route for various purposes of transmitting or data packets to be moved. Dara will take several lanes that often lead to delays in data transmission. Figurative of a package, the bridge is useful for determining the destination and source segments. If the segment is the same, then the package will be rejected, temporarily if the segment differs, then the package will be forwarded to the destination segment.

The way the bridge works is much more sophisticated than the repeater, however it is not yet a router. Bridge works on Layer data link model OSI (Open System Interconnection). With the OSI model, the bridge is capable of connecting computer networks using different transmission methods or different medium access controls. Unlike routers that work on network layers and repeaters that work on the physical layer.

Bridge functions
Definition of firewalls with functions and how firewalls work on computer networks

Definition of firewalls with functions and how firewalls work on computer networks

In this increasingly sophisticated Internet era, every computer can easily connect with other computers. The exchange of files or documents is increasingly limitless and can be done by anyone. Obviously this has a positive impact that is also accompanied by negative impacts.

As a positive, people are increasingly facilitated to share the necessary documents. But negatives, not everyone shares with a good cause. Some attempt to attack the computer as a hacker, spy on certain computer (espionage) for personal benefit, or even steal existing data in a computer.

To prevent such negative impacts, a firewall is required to control the communication system between two networks. In the article below, it will be explained in full about the definition of firewalls, firewall functions, and how the firewall works.

A Firewall can be defined as a specially designed system to prevent suspicious access from going into a private network. The Firewall itself can be either hardware or software, it can also consist of a combination of both.

The firewall itself is actually inspired by physical objects called firewalls installed in buildings to prevent the fire from the source. Firewalls for buildings are widely installed for example in apartment complexes. To separate two apartment units, a firewall is installed so that if fire fires do not rapidly propagate from one unit to another.

Because the firewall serves as a barrier with the outside world, then for one apartment unit that has four sides for example, must have a firewall installed at all four border points. If either side is not limited to firewalls while the other three sides are in a firewall, it will be futile to hold the flame that will spread rapidly. Similarly, the firewall for computers.
Definition of MAN network with advantages and disadvantages

Definition of MAN network with advantages and disadvantages

Computer networks generally consist of 5 types namely LAN, MAN, WAN, wireless, and Internet. Actually, the concept of each type of computer network is the same to be able to connect to various network devices used to communicate or share resources.

Distinguishing from the five types of computer networks is the coverage of the region, network area, and the technology used by the computer network includes the use of cables, IP Adressing, and security systems.

This time will be discussed further on the network of MAN (Metropolitan Area Network). As the name of this computer network is used to connect computer networks that exist in a city to other cities. Here's a further explanation of the understanding of the MAN network and its shortcomings and benefits.

Definition of MAN Network
Understanding Mesh topology and advantages and disadvantages

Understanding Mesh topology and advantages and disadvantages

A network topology is a rule or a way that can be used to connect between one computer and another so that it can form a network. The network topology itself can be described physically through existing relationship patterns between network components which include workstations, servers, hubs and other network devices. Computer network topology is actually divided into 2, among others are:

  1. Physical, that is, an image that comes from the relationship between a computer, a server, a switch, a hub, and a network cable that forms a specific pattern.
  2. Logical, that is, a picture that shows a device that can communicate with other devices.

In the network topology selection you also need to consider some of the related factors. Of course this will greatly affect the quality, effectiveness, and efficiency. These factors include cost, speed, size, connectivity and the environment.

There are several types of computer network topology most common, namely bus topology, star topology, Ring topology, Topology tree, and mesh topology. Each of these types of network topology certainly has its advantages and disadvantages.

This time will be discussed further on the mesh topology. Mesh topology itself is a type of topology built by pairing link between all nodes in the network. The following will be explained more about the definition of mesh topology along with its characteristics, advantages and disadvantages.

Understanding Mesh Topology
Mesh topology or better known as mesh topology because the shape that does resemble mesh. Mesh topology is a form of relationship that exists between the devices where each existing device will be connected directly with other devices that are in one network.

In mesh topology, every device can communicate directly with other device because device will connect with each other known as dedicated links. Communication tied to a mesh topology usually runs fast and can be used to build a less large scale network.
Understanding Hub along with functions and how hubs work

Understanding Hub along with functions and how hubs work

There are times when we want to exchange data between one computer and another computer. The way to move data is of course there are various ways. Start from the simplest way to an efficient way.

For that we usually will use a device that can receive data from a computer one Unuk then forwarded to another computer. The device is named hub or is usually better known as the network hub term. In this article we will talk about the understanding of the hub and its functions and how it works.

Understanding Hub

The hub or better known as the network hub is a device that serves to connect one computer to another computer in a network system. Computers connected through this hub can exchange information with each other. But not limited to computer only, all computer-related devices can be connected to this hub.

Generally, this hub has many Ethernet ports. All devices connected via this port will connect to the LAN network, which can eventually communicate between devices to improve the effectiveness and efficiency of each device's performance.

The Hub has a working system similar to switches. Only if on the switch, the data transferred will be forwarded to a specific port (the port is indeed the destination). Meanwhile, in the hub, the received data will be sent to all devices connected to that port. So in this case the hub does not perform filtering nor redirects to other networks.

Thus, if there is a hub with 8 ports and there are 5 ports active, then the incoming data will be forwarded to the 5 active ports. It certainly guarantees that the information can be delivered properly. But in terms of efficiency is certainly less good because it will consume network bandwidth. Therefore generally people prefer switches than hubs.

Hub functions

The Hub has a function that allows connected devices to exchange information. Thus the computer connected to this hub will be able to exchange data. Generally these hubs are used on small LAN network systems that have less high network complexity. In general the hub itself is distinguished into 3 kinds, namely 1) passive hub, 2) active hub, and 3) intelligent hub.
Repeater definition along with Repeater function and how to work

Repeater definition along with Repeater function and how to work

Have you ever had trouble getting WiFi connection at home or office because WiFi connection is out of range? Of course everyone who subscribes to the Internet package does not want to be harmed with the limitation of access coverage WiFi signal, but because of some things, often we experience interference to get the WiFi coverage that is around us.

If we put a PC or laptop we are far enough away from the WiFi transmitter, then we will have trouble catching the WiFi signal. As another example if we are in a certain space, where there is a partition divider quite a lot that separates us from the WiFi transmitter, then we will also have difficulty to get the WiFi signal.

Well, to overcome this, we can use a device called a repeater. The device is usually shaped like a box with multiple antennas, at least 2 antennas (some other types are not equipped with antennas). More on the definition of repeater and function and how it works, see the explanation below.

Repeater definition

Repeater is a device that serves to receive signals that contain data in a network. By using a repeater then network coverage will be wider. The Repeater receives a signal and then reradiates the signal identical to the original signal, but in a different way. Generally the repeater reradiates the signal in a different frequency than the original signal frequency.
Understanding Tree topology and its advantages and disadvantages

Understanding Tree topology and its advantages and disadvantages

When talking about the Internet, there is a view that the Internet is a connection between computers around the world, with the center on a particular computer. This view is not entirely true, because in reality the internet is a collection of various networks, both large and small networks, all around the world. These networks were originally a collection of local networks.

In the local network, every computer in the network is connected to each other through both wired and wireless media. There are various network topology or form of relationship structure between computers in network, one of them is topology tree. Each network topology has its own characteristics and advantages and disadvantages. For that it is necessary to plan ripe to determine the type of network topology that will be used to fit the user's needs or wishes.

The tree topology is one of the most widely used topologies on a local network consisting of many computers. Because in addition to supporting the network in large scale, the tree topology also facilitate control and data management. More about the understanding tree topology and its advantages and disadvantages, you can listen to the removal below.

Understanding Tree Topology
The tree topology is a combination of bus topology with star topology, where the network in this topology is a collection of star topology connected with bus topology. So every client is grouped with a hub as a communication center, as does the network structure in the star topology. Then each communication center is connected with another communication center using a main cable as in the bus topology.

الخميس، 30 أبريل 2020

Understanding Peer to Peer Networking with pros and cons

Understanding Peer to Peer Networking with pros and cons

In order for all computers in the same region to be connected, sharing data and information, then established computer networks. The computer network is formed of various types, either viewed from the network scale, the arrangement of network structures, data transmission media, or its functions. Based on its function, the network is grouped into two types, namely network client server and peer to peer network.

On the network client server, there is one computer that serves as the server that governs the system in the network, while the other computer acts as a client. Unlike the client network server, the peer to peer network does not have a central server that regulates clients. On a peer to peer network all computers act as servers for other computers, so all computers are also servers as well as clients.
Understanding the Star topology and its advantages and disadvantages

Understanding the Star topology and its advantages and disadvantages

For those of you who are still unfamiliar with the word network topology, network topology is a setup of various kinds of network device elements on a computer network. Topology has two kinds of forms, namely physical topology and logic topology.

A physical topology is a method of placing a network component, in which case it includes the location of the device and cable placement, while the topology logic is an overview of how data flows on a network without having to pay attention to the physical design The network.

A network topology can be classified into eight types of topology, namely peer to peer, linear, bus, star, ring, mesh, tree and hybrid. And in this article will focus to discuss one of the eight types of topology, namely the star topology. See the description of the star topology and its advantages and disadvantages below.

Understanding of Star Topology
Understanding the Bus topology and its advantages and disadvantages

Understanding the Bus topology and its advantages and disadvantages

The previous post has been discussed about the star topology. Previously also discussed about what is a network topology, but on this occasion will be discussed briefly about what is a network topology. On a computer network, the word topology refers to the layout array of a network device element on a computer network.

Network topology is differentiated into two forms, namely physical topology and logic topology. The physical topology is about how the placement of a network device on a computer network, while the logic topology is about how the data flows on each computer device.

On this occasion will be discussed in full about the understanding of bus topology, characteristics, how communication occurs, as well as the advantages and disadvantages of the bus topology.

Definition of Bus topology

Bus topology is one type of topology that often used in small scale network. In topology bus all network devices are connected on a single cable called Bus. This Bus then becomes the center of data traffic where all network devices communicate with other network devices that are currently connected.
Understanding LAN Network and its advantages and disadvantages

Understanding LAN Network and its advantages and disadvantages

Computer networks are a collection of computer devices that connect with each other so that they can exchange data or communicate. There are various types of computer networks, and LAN is one of the types of computer networks that are reviewed by geographical reach.

Other types of computer networks that are reviewed by its geographical reach are MAN and WAN. In the previous article was discussed about the network MAN. And on this occasion will be discussed about the understanding of LAN network and its advantages and disadvantages, here is the complete explanation.

Definition of LAN Network
LAN stands for Local Area Network, which is a computer network with small scale (local) such as office building, school or home.

LAN is generally used to share resources in a building. LAN can stand alone, without being connected by an outside network or Internet. But if a LAN is connected with several other LANS it will be formed a network called the Metropolitan Area Network (MAN).
Understanding Network Client Server and its advantages and disadvantages

Understanding Network Client Server and its advantages and disadvantages

When you are browsing and accessing the website Nesabamedia to read this post and when you type www.nesabamedia.com in the search field in your browser, without realizing you have sent a request message to the server That is on the Internet, then the server responds by giving a result of the display of Web pages as you ask (you as a client).

Such is the overview of the client network server, very different from the peer to peer network discussed in the previous post, where on each computer connected to the network can serve as a client (send request) or As a server (receive request).

To understand the network system client server more complete, the following will be discussed about the understanding of network client server as well as the advantages and disadvantages of the network client server.

Understanding the network Client Server
Tasks and responsibilities of a Server Admin you should know

Tasks and responsibilities of a Server Admin you should know

Being a server admin is very risky if it is not lived with clarity and responsibility. Server Admin is the one who manages all the activities of the server, starting from the beginning built, maintenance until repair.

You need to know that being a server admin is not an easy thing. Server admins are required to take care of and maintain server performance in order to keep it running properly. In a company, the role of server admins is very important.

Server admins have 3 key tasks such as building, managing, and repairing servers. All three tasks are "required" to do a server admin to keep the server running properly.

Seoarang Admin server does not work alone, usually they form a team. It is very impossible that there are only 1 server admin in a large company, because being a server admin is very difficult and risky.

Computer network topology – Understanding, type, pros and cons

Computer network topology – Understanding, type, pros and cons

When we want to install a computer network, first we have to pay attention to the form/topology structure used. Well, this article discusses about the understanding of the network topology on the computer completely and complete.

Network topology itself is a form/network structure that connects between computers one with the other using both wired and wireless media.

In the network installation, we have to really pay attention to the type, advantages and disadvantages of each network topology that we will use. Wisely in choosing a topology will impact on the efficiency and the funds you need later.

Computer network topology

Suppose this way, if you just want to create a very simple network, maybe the topology Bus can be your choice, but if you want to create a network that is medium or large, you must choose another topology type because the Bus topology is very Not recommended. Immediately, here is the understanding of computer network topology and its types, advantages and disadvantages:
Understanding FTP and functions and how the FTP works fully discussed

Understanding FTP and functions and how the FTP works fully discussed

Data exchange is an important thing in the computer world. With the exchange of data, one computer can connect with other computers.

As for example when you download a file on the Internet, have you ever thought how can we download the file? Then when you upload a file, how can it all happen? It's all because of the role of FTP.

FTP is a solution for two computers that want to transfer the data with the help of the intensity connection. FTP is very useful even for two computers that have different operating systems. FTP is also useful for transferring data between two computers that distance apart. The following will be discussed about the understanding of FTP and the functions and how FTP works:

Understanding FTP
File Transfer Protocol or FTP is an Internet protocol used for the business of sending data in computer networks, such as uploading and downloading files done by FTP client and FTP server.

The FTP service can be set to FTP public, where everyone can easily access the data on the FTP server. In addition to being set to FTP public, this FTP service can also be set up so that not everyone can access the data on the server, so only registered users have permission to access the data.
Know the understanding of DHCP and functions and how DHCP works

Know the understanding of DHCP and functions and how DHCP works


Understanding DHCP

Do you know what DHCP is? Dynamic Host Configuration Protocol or often abbreviated DHCP is a client-server protocol used to provide IP addresses to client computers/network devices automatically.

The reason why many are implementing DHCP is its ease in granting IP address to the client computer/network device (even in many numbers) automatically. So we do not need to manually assign IP addresses to each computer one by one.

The DHCP server not only gives the IP address only, but also provides netmask, host name, domain name, DNS, and its Gatewand address as well. In addition, the DHCP server can also provide other parameters such as time server and so on.

This way, a server admin does not need to bother to give an IP address to every client computer who wants to connect to the network. If dozens of client computers may not be a problem, then what about thousands of client computers?

What is a computer network device? See Understanding and Jenis-Jenisnya as follows

What is a computer network device? See Understanding and Jenis-Jenisnya as follows

Two or more computers can be interconnected and various data sources because of the network devices that bridge both computers.

Connected to a network (both local network, WiFi and Internet) and hardware sharing (example: Printer Sharing to be used in one room), all of which requires the name of a computer network device.

Computer network hardware is a device used to achieve the purpose of the computer network function itself, such as sharing resources, communicating and so forth.

How to accelerate Download of the IDM proven success (Speed increased to 33%)

How to accelerate Download of the IDM proven success (Speed increased to 33%)

Internet Download Manager or commonly referred to as IDM is already the most popular downloader app and almost all computer users install it. No wonder if many people choose IDM due to this downloader app, our downloading process is much faster than without using IDM.

Many are misperceptions regarding the IDM. They think that by using IDM this, we can accelerate the Internet connection so that the downloading process runs much faster. This is completely wrong.

The way IDM works only maximizes the speed of your Internet connection so that no one is idle during the downloading process and helps us get the maximum speed from the server you are downloading.

الاثنين، 20 أبريل 2020

Definition Switch along with Switch function on computer network

Definition Switch along with Switch function on computer network

The computer network is a field of science in IT majors, in addition to the field of programming and databases. Each IT graduates will usually choose one of the areas to be assigned according to their interests and talents.

If you prefer to write the program code then take the field of programming, if you like to compile the database of applications then take the database field, so also if it takes the field of computer network, it will work with systems that connect two or Computer to exchange data or information.