Components Contained in The VSAT

VSAT consists of four main components as follows:

• Satellite (Indonesia-Palapa B1, and C1)
• HUB station as the main control station
• VSAT
• PES

This type of VSAT that we often encounter is

• Indoor (inside buildings) connected by a link interdasility (facility contact). Indor unit forms such as a box similar to the PC.

OSI Basic Reference Model

OSI Basic Reference Model - Architecture model that describes how communication can be executed between systems of different vendors. Basically this model is the logical structure of network operations that have been standardized by the ISO (which consists of seven layers). This model allows a computer or device that meets the requirements of OSI to be able to interact with other equipment that meets the requirements of OSI.
to -7 layer starts from the bottom of the physical, data link, network, transport, session, presentation, and application

Defenition of WiMAX

WiMAX or Worldwide Interoperability for Microwave Access, a spesifiksasi for wireless data communications. WiMAX specifications contained in the IEE 802.16. WiMAX is a refinement WiFi, which can communicate at distances up to 5 miles at speeds of 10Mbps data transfer.

WiMAX is one of the advanced electronic technology that allows us to obtain a quality internet connection. While the wireless media over the already renowned as the most economical media in getting an internet connection. Its coverage area can reach as far as 50 km and its ability to deliver data with a high transfer rate over long distances.

Defenition of Router

The router serves as a liaison between two or more networks to carry data from one network to another.

Different routers with switches, because the switch is connecting several devices to form a local area network (LAN). As an illustration of the different functions of routers and switches are the switches is a street, and the routers connecting muerpakan antarjalan. Each house beradda on the road which has an address in a particular order. in the same way, the switch connects a wide range of tools, each tool has its own IP address on a LAN.

PC Health Monitor

PC Health Monitor - PC Health Monitor is a comprehensive tool for managing your IT systems. Its features include network monitoring of Windows and Linux based systems, IT asset management, Microsoft patch management, software distribution, centralized power savings, a centralized console for easy management of all your systems. Health Monitor will detect all installed software and hardware and create an inventory of your systems.

OSI Seven Layers in the Networking World

Seven OSI Layer - In the world there is a term with osi network layer, layer osi seven parts. There was the seventh osi layer, is

1. Physical is the lowest layer in the OSI model. Serves to define the network transmission media, signaling method, synchronization bits, network architecture (such as Ethernet or Token Ring), network topology and wiring.

Definition of OSI Layers

OSI LAYER - Understanding the OSI model (Open Systems Interconnection) is a conceptual model consisting of seven layers, each layer has a different function.
OSI Layer counting starts from the top was the highest to the bottom,

7. Application is the highest layer of the OSI model, the layer below it works for this layer, application layer is the task of Functioning as an interface with applications with network functionality, govern how applications can access the network, and then make the error messages.

Layer 2 VS Layer 3 Switches

Layer 2 VS Layer 3 Switches - Layer 2 and Layer 3 terms comes from the OSI seven Layer model (a theoretical way of dividing a network architecture up with functionality, service, dependence and application). Within the model, Layer 2 represents the “Data Link Layer” while Layer 3 represents the “Network Layer”.

Layer 2 switches have the capability of moving packets around a single network. As the reference to the OSI Layer holds true, this switch facilitates data only (and) within the physical layer (also known as Layer 1 e.g. cables and connectors). It is intelligent enough to learn the MAC addresses of each device, source/

LAN | Local Area Network

At this time I will posting about the definition of a network that this time I learned about in school, that is, a local area network or LAN is a computer network that connects computers and devices in a limited geographical area such as homes, schools, computer labs or office buildings. Defining characteristics of LANs, in contrast to the wide area network WAN networks, including those usually higher data transfer rates, smaller geographic areas, and lack of need for channel

Definition VSAT

VSAT, These words are not foreign to the ears of a network among experts, is singakatan of VSAT Very Small Aperture Terminal is a great option for people who are in remote areas and in desperate need of internet connection where no other infrastructure such as ADSL, ISDN, etc.. even the telephone.

VSAT dish itself is shaped like a large-sized sanagt and directly facing the sky. With this equipment the digital signal is received and sent to the satellite. Satellite signal itself serves as a successor to be sent to another point on earth.

Definition of HTTP

Definition of HTTP, HTTP is an application layer network protocol used for distributed information systems, collaborative, and using hypermedia. many users in the retrieval of resources interconnected by links, called a hypertext document.

HTTP is not limited to use with TCP / IP, although it is one of the HTTP application protocol TCP / IP the most popular over the Internet. It can be implemented on top of HTTP, other protocols over the Internet or over other networks. as mentioned in

"Implemented on top of any other protocol on the Internet, or on other networks.", but the HTTP protocol requires a reliable transport layer.

Definition of HTTPS

Definition of HTTPS, HTTPS is the secure version of HTTP, the communication protocol of the World Wide Web. Invented by Netscape Communications Corporation to provide authentication and encrypted communication and the use of electrical komersi.

In addition to using plain text communication, HTTPS session encrypt data using SSL protocol (Secure Socket Layer) or TLS protocol (Transport Layer Security). Both of these protocols provide adequate protection against eavesdroppers, and man in the middle attacks. In general the HTTPS port is 443.

Level of security depends on the accuracy in implementing the web browser and server software and supported by the actual encryption algorithm.

Therefore, on a web page to use HTTPS, and the URL used beginning with 'https' instead of 'http://'

Netmask Address

Netmask Address is the IP Address used to determine the "division" long network bit by bit host. Netmask is also used to find the network address. Why should determine the length of the network using a netmask bits? how to find the network address using a netmask? Is not the host bits long division following the standard IP address classes?


For the first question can be answered as follows. Computers are basically "stupid", unless programmed and was told in detail. Computers can not tell the difference IP address keals a, b, and c. So the computer does not know the length of the network bit by bit host of a specific IP address. To fix it in the make netmask address.

Broadcast Address

Broadcast address is the IP address in the special use to send or receive information that should be known by all hosts on a network. each IP datagram has a header containing the IP address of the destination address. With this address, then only the destination host the datagram memperoses, while others will host it. Well, What if a host wants to send datagram to all hosts in a network with it?

Would be inefficient if you have to make as much as the destination host the datagram replication. Bandwidth usage will increase the workload of the host increases. This is where the benefits of broadcast address. Host enough to send datagrams to the broadcast address and all the hosts in the same with his networkyang will receive the datagram. In practice, the types of information in the broadcast is typically the routing information.

how to overcome the boot manager is missing in windows

To overcome this, we simply do a few steps, here's how to cope with BOOTMGR is missing in Windows 7 :

How to Resolve Generic Host Process for Win32 Services Error

Open the registry editor, START> RUN> TYPE REGEDIT> ok. Go to HKEY_LOCAL_MACHINE \ System \ CurrentControlSet \ Services \ NetBT \ Parameters, then on the right hand column, locate and open TransportBindName. After that empty parameter in the Value data and click OK.
 

Finally go to HKEY_LOCAL_MACHINE \ Software \ Microsoft \ OLE, search Enable DCOM in the right column and open. In the Value data field parameters by default will be filled in Y, change Y to N and then click OK. Close the registry editor and other applications and then restart.

So that I can say, if there is a problem, you just comment below 

How To Change Mac Address in Windows XP

One goal for someone to replace the Mac Address is for doing nosy on campus or office computer networks such as Like open a porn site, like mutually IP Address, etc., so that blocked Internet access on the network. In addition, it could be to hacking wireless hotspots that security was using the Mac Address Filter, if you Mac Address is already known.

The following steps Changing Mac Address on Windows XP:

How to Install IP Address

In Windows XP it is not enough to determine whether the TCP / IP diinstal.Windows XP automatically detects whether your computer using TCP / IP, and disable it if not. So, first you must determine whether the computer has TCP / IP installed on the modem or network connection or, of course, is not the same sekali.Untuk do so, follow these simple steps:

1) Select the Start button, then Settings menu, then Control Panel from the Settings menu.
2) Double click on Network Connections.
3) It will display all the windows associated with a network connection.

i. If there are no icons under Dial up or LAN, then you do not have network or dial up connection, and therefore, there is no TCP / IP. For now, you can close all windows to return to your desktop.

Definition of Metropolitan Area Network

Metropolitan area network or shortened by MAN. A network in a city with high-speed data transfer, which connects various locations such as campuses, offices, government, and so on. MAN network is a composite of several LANs. Coverage of this MAN among 10 to 50 km, MAN is a network that tepaMetropolitan area network or shortened by MAN. A network in a city with high-speed data transfer, which connects various locations such as campuses, offices, government, and so on. MAN network

Definition of Wide Area Network

WAN is short for the term information technology in English: Wide Area Network is a computer network covering a large area as an example of a computer network between regions, cities or even countries, or can be defined as well as computer networks require routers and public communication channels.

Understanding Local Area Network

Commonly abbreviated as Local Area Network LAN is a computer network whose network covers only a small area, such as campus computer networks, buildings, offices, in homes, schools or smaller. Currently, most LANs based on IEEE 802.3 Ethernet technologies using a switch device, which has a data transfer speed 10, 100, or 1000 Mbit / s. In addition to Ethernet technology, the current 802.11b technology (or so-called Wi-fi) is also often used to form a LAN. Places that provide a LAN connection with a technology called Wi-Fi hotspots.

Internet facilities

Facilities for which you can use by using the Internet, including:
- Web, hypertext is a facility to display the data as text, images, sound, animation and other multimedia data, that among these data relate to each other. To facilitate your reading proficiency level of data and information you can use a web browser like Internet Explorer or Netscape.
- E-Mail (Electronic Mail), with this facility you can send and receive electronic mail (e-mail) to / from other computer users connected on the internet, and can include a file as an attachment (attachment).
- Newsgroups, this facility is used to distribute articles, news, comments, letters, offers or other files to Internet users who joined the discussion

understanding the Internet

Internet Interconnection Networking derived from the word that has meaning relationships with various types of computers that form a network system that covers the entire world (global computer network) by means of telecommunication such as telephone lines, radio links, satellite and others.
In regulating the integration of computer networks and communication protocols used are TCP / IP. TCP (Transmission Control Protocol) ensures that all connections to work properly, while the IP (Internet Protocol) which transmits data from one computer to another. TPC / IP in general serves to choose the best route of transmission of data, choose alternative routes if a route can not be in use, manage and transmit packets of data delivery.

Linier Network Topology

Here I will discuss about Linear Topology. Computer network with linear topology usually called linear bus topology, this layout includes a general layout. One main cable connecting each connection point (computer) connected with a connector called T Connector and the ends must be terminated with a terminator. BNC-type connectors used (British Naval Connector),

BNC connector actually is the name not the name of the cord, the cable used is RG 58 (Cable Coaxial thinnet). Installation of linear bus topology is very simple and inexpensive, but most consist of 5-7 computers.

Tree Network Topology

Here I will discuss about the Topology Tree. Tree Network Topology Network topology is also called multilevel network topology. This topology is usually used for interconnection between different central denganhirarki. For the lower hierarchy depicted in locations that are low and getting older has the higher hierarchy. This type of network topology suitable for use on a computer network system.

Mesh Network Topology

Here I will discuss about the Mesh topology. This network topology implementing the central relationship in full. The number of channels should be provided to form a mesh network is a central number minus 1 (n-1, n = number of central). The complexity of the network is proportional to the increasing number of central-mounted. Thus in addition to less economical also relatively expensive in operation.

Ring Network Topology

Here I will discuss about the ring topology. Ring topology is a network topology where each point is connected to two other points, forming a circular path to form a ring. In the ring topology, data communication can be disrupted if a single point of disturbance. FDDI networks anticipate this weakness by sending data clockwise and counterclockwise with clockwise direction simultaneously.

Star Network Topology

Various many kinds of topology in a network, this time I discussed about the topology that is not less important as the other topologies are star topology, star topology is a form of network topology in the form of convergence of the central node to each node or user. Star network topology including network topology with high costs.

The following advantages and disadvantages of Star Topology

Bus Network Topology

In a bus topology, network Both ends must be terminated with a terminator. Barrel connector can be used to expand Them. The network consists of only one cable channel That uses a BNC cable. Computers that want to connect to the network to associate himself with mentap Ethernet over cable. Linear Bus: The layout of this include the general layout. The main cable connects each node, to a single channel to access a computer that ends with a tip. Each node is connected to two other nodes, except the engine at one end of the cable, each node is only connected to one another. This topology is often found on client / server system,