Monthly Archives: March 2016

5 Facts About Ethernet Adapters

Ethernet AdaptersIf you are like most modern humans, you likely use some form of Ethernet adapter on a daily basis. However, you may have little understanding of what an Ethernet adapter is, or how they work. This article will make all clear. Here are five little-known facts about Ethernet converters.

1. You are probably using one right now: As you may know, the most basic example of an adapter is what you use to connect to the Internet if you have a wireless network. In your computer, or possibly, attached to your computer, you have a wireless adapter that converts the wireless signal to the Ethernet signal that your computer operates on.

2. Adapters require a driver to operate: Typically when you use your computer to connect to the Internet, your operating system will automatically install a driver that is compatible with your systems. If this process is not automatic, you may have to go to the manufacturer’s website to download the driver manually. Once the driver is installed and connected to an open port you will be fully connected to your network.

3. There are adapters for computers without an Ethernet port: When wireless networking was first being established, many people owned computers that did not support wireless networking. In order to connect wirelessly, you were required to by wireless cards that connected to their computers to receive and convert the signal from the router. Today, those adapters have come a long way in terms of sophistication and performance.

4. They are not just used to connect to the Internet: Advanced Ethernet adapters are used in a plethora of different applications where there is a need to connect two different types of media. Adapters are used to automate systems and communicate vast amounts of data and information quickly and accurately. Ethernet converters are used in nearly every industry from oil and gas, to medical, to military.

5. They vary based on application, performance, and operating conditions: Adapters can be simple, like the one you use to connect to the Internet, or they can be built for performance and rugged conditions. On the high-end, fiber optic cables are paired and twisted, to provide the highest speed and highest fidelity connection. This type of adapter is what you would commonly find in new Metropolitan Area Networks that are popping up in some cities to allow high speed internet access to all citizens and visitors.

Hopefully after reading this article your eyes have been opened to the complexity and variety of Ethernet cable adapters. They serve a myriad of purposes to help businesses and people transmit data and information in a secure, high-fidelity manner.

Explaining File Server

File ServerA File server is a server attached to the LAN or any other network type. Its primary purpose is providing a shared file access such as documents, images or other files that can be accessed by everybody.

This type of server is designed based on the popular client-server scheme like explained in the Database server nugget.

This type of server is not intended to perform any computing tasks nor execute programs on behalf of the clients. It is simply a type of shared lower level storage device.

The file server can be accessed via a number of different methods. It can be through the FTP (File Transfer Protocol), HTTP (Hypertext Transfer Protocol but is different from a web server that provides dynamic among a static content), SMB (Server Message Block) /CIFC (Common Internal File System – which is usually for UNIX but is also supported by Windows) or NFS (Network File System – mainly UNIX). This might be a bit confusing as the database server or shared storage might be considered to be a file server as well but the difference is the security and connectivity. The database server will require record locking (security feature) and will be much more powerful as it will contain a huge database that is constantly processing as it pushes queries from and to the users connected to it. Usually the shared storage uses different connectivity; while the file server will probably will not require anything faster than the common 1GbE RJ-45 connectivity, the shared storage is usually equipped with 10GbE RJ-45, 10GbE SFP or 8GbE – 16GbE Fibre Channel and therefore much more expensive as well.

As mentioned above, the file server is used to store documents and files that are shared between all the devices connected to the same network, where the security doesn’t have to be top notch and the fastest connectivity is not required. Anything more than whatever the server is designed for would be simply an over-kill – something we are always trying to avoid in the IT infrastructure.

An enterprise level type of file server would be the NAS (Network Attached Storage). This is a file level data storage connected to a host and provides data access to the client(s). The difference between a NAS and a standard file server is that the NAS was built and designed to be a file server while a generic server is just a multipurpose server that was assigned that role. The NAS systems are networked (they have a management port that allows an IP address to be assigned and join them to a running network) storage devices that contain hard drives set up in a RAID for redundancy and data protection and they are using network file sharing protocols such as NFS, SMB/CIFS or AFP.

Since the NAS is a storage device and not a multipurpose server, this prevents from unauthorized personnel accessing it directly (it has to go through a host that the NAS is directly attached to) and downloading information, thus preventing any internet access directly to the NAS. This is the main security benefactor of such a device. The cost of this compared to a generic file server is priced accordingly, of course.

But the main question is – do I need a File Server? Preferably yes. Back in the day, NAS or file servers used to be very expensive, pushing a lot of smaller businesses to just storing all the info on their desktop computer and accessing it from all the workstations. This wasn’t such a good idea as you store a lot of critical files that are kept on someone’s desktop or workstation. This “someone” could also be surfing the web and getting infected with email worms and viruses. Instead you can lock the files with the server in the server room and prevent any access to it, isolating it from the commotion of daily operations.

But before you jump on this type of server, you need to ask yourself few questions? Do you need redundancy in that data? Some need it, some do not need it. Next, ask yourself, how much storage do I need? Usually File server systems are equipped with more drive bays, supporting larger capacities, even after configuring a RAID. Do you plan on expanding? And eventually, how much are you willing to spend on the unit? More redundancy and performance increase the price.

In conclusion, a file server has proven to be a very effective addition to any infrastructure. Unlike other servers roles I reviewed, this server is not a MUST in every infrastructure and you can get away with using other money-savings means to share your files and consolidate storage but eventually, when the business grows, performance becomes important and redundancy matters, there is no avoiding this and you should look into different NAS systems as possible options.

I hope you have a better understanding of what a File Server is, what a NAS is and whether you need one in your infrastructure or not.

Thank you for reading and be sure to check back for more information on other components and system setups.

A Great Alternate To Keyboard Replacement

Keyboard ReplacementLaptops have become an integral part of our day to day lives. Whether you are young or old, a student or a professional, a laptop holds a crucial place to help you carry out various activities. Using a laptop makes life so much easier.

It is very important to take proper care of your laptop keys to avoid any damage. There are many people who eat and drink while working on their system. This can cause damage to your keyboard as well as to the whole system. The keys of the laptop should be used with proper care else you may end up having broken or damaged keyboard keys.

There is one thing that needs to be understood that broken or damaged keyboard keys can easily be replaced without having the need to replace the whole keyboard. Keys of almost all laptops are same with the exception of shift, delete, enter, shift keys and space bar. Every key in the keyboard has a spring which activates the sensor below when we press it, allowing us to type. The most common problem that arises with the damaged key is that it is not able to press the sensor below, barring the typed characters to show on the screen.

There are few things you can do in case of broken or damaged keys:

– If the keys are broken, you can fix them yourself by using glue. You can put glue on the key and leave it to dry. Later try to snap the key into the keyboard and see if it works.

– If the keys of the laptop are missing, you can buy their replacement either from a local shop or online.

– You can take help of a computer repair professional in case the damage is of a higher magnitude. Make sure that the professional you choose is experienced and reliable.

– If your system is under warranty period, you can send it for repair to the manufacturer itself. It may take some time but you can be assured of quality service. If the warranty period has expired and still you want to get it fixed from the manufacturer, it may cost you a little on the higher side and also you might have to wait for a couple of weeks or even months.

No matter how the keys of your laptop have been damaged, there is always an option available to get them fixed or replaced. This is a great alternative to the entire keyboard replacement.

 

How Do Bluetooth Speakers Work

Bluetooth SpeakersDo you have any idea how your Bluetooth speakers work? Are you curious about the process that takes place inside your speakers? Bluetooth speakers come in all shapes and sizes. There are Bluetooth speakers that are big; there are those speakers which are small and there are those Bluetooth speakers that are of the same size as regular plug-it speakers. Though they come in different shapes and sizes, these do not really matter. These characteristics are for aesthetic purposes only and these speakers all work the same way — using Bluetooth technology.

What is Bluetooth technology? Basically, this technology is connective convenience. Bluetooth technology is considered the global wireless standard for the expansion of the range of connectivity of a device. Since we are in a world where connectivity matters a lot; the presence of Bluetooth technology is a very important element for our daily lives. It helps us get connected to each a lot easier. With this being said, Bluetooth technology is now built into various products – cars, mobile phones, medical devices, computers and even on toothbrushes and forks. This technology allows us to share music, videos, photos, data and other information wirelessly between “paired” devices. Bluetooth technology has been known to us for its low cost and low power consumption.

This technology is then applied to speakers, thus giving birth to Bluetooth speakers. This Bluetooth capability on speakers is one of the latest innovations in these field. How does this work? Bluetooth technology in these speakers allows devices to “talk to each other”. This technology works by embedding tiny, inexpensive transreceivers or chips into your devices, that then transmits and/or receive radio waves. These radio waves are then amplified by your speakers.

When you are connecting a Bluetooth speaker with your Smartphone, it works this way: Your Smartphone will transmit radio waves to the speaker; then this speaker will receive and process these radio waves; lastly, these radio waves, in the form of music or voice, will then be amplified using the speakers’ built in amplifiers.

When choosing which speaker you are going to buy among the wide variety of designs and functions, always keep in mind to consider you audio and lifestyle needs or preferences. You should also consider your taste with regards to its design or appearance. Knowing the right Bluetooth speaker for you will ensure that you get the best performance your speaker’s going to give.