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Category - Antoniy Yushkevych

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File Transfer Protocol (i.e., FTP) has been around for much longer than HTTP (i.e., Hypertext Transfer Protocol), which you are using right now to connect to the Internet. It is even older than TCP/IP protocol, and over the 40+ years of its existence, it has been modified to fit the new standards in the industry. Since the FTP specification was written in 1971, the first FTP clients were completely command-line programs, as they were developed before operating systems adopted GUIs. Nevertheless, countless GUI FTP clients have been designed for desktops, servers, and mobile devices. This...

15

Apr, 19

What is RAID and Why Use It

  • by Antoniy Yushkevych
  • in Server

It is not a secret that technology has been advancing at a rate previously unseen. All the performance numbers of all the hardware components we use today have risen annually in an exponential manner. Nevertheless, just like how in the automotive industry, packing a vehicle with pure horsepower won't win you the race, in the IT world, performance improvements are not simply due to better hardware. Countless incredibly genius solutions can cause even old outdated hardware to outperform the "latest and greatest" market. Today we will focus on one such solution: Redundant Array of Independent...

Since its introduction in 1983, IPv4 has been the standard protocol for internet routing, however with the vast expansion of the internet, we have started to run out of the simple binary 32-bit IPv4 addresses. To solve this issue, the Internet Engineering Task Force (IETF) developed the IPv6 protocol and it has been established as an Internet Standard in July of 2017. Its length is much larger at 128-bits, making it nearly impossible to reach address exhaustion. IPv6 also came with many advantages over IPv4, about which you can read here. Now we will demonstrate how to setup IPv6 on Windows...

There is great functionality in having a fully working version of Windows that you could boot from any computer on something as small as a USB flash drive (Windows Live USB), and today we will show you how to do it. All you need is a 16GB (recommended 32GB+) flash drive and a license to activate Windows on the USB. First of all, you will need to get a Windows ISO file with the version you require for your system. We are going to use WinToUSB, which has a free version of the program. There is a small caveat, but the free version of the program only supports Windows 10 versions 1803 (April...

15

Apr, 19

Solid State Drives are a relatively new technology and are way too expensive to implement as an enterprise-level storage option. Hard drives have always been the go-to solution for large-scale storage needs. As the other computer components got better, the hard drives were not able to keep up with their rate of innovation. Researchers were simply running out of space where to put new platters into the standard 3.5-inch form factor. Western Digital has come up with a solution to this problem in a very unexpected way. They decided to fill the Hard Drives with Helium, a gas that has a density...

17

Apr, 19

In general, most people assume that their bandwidth is their internet speed, but that is not true. It is the amount of data they can receive in a second. For example, if your internet provider offers you 100Mbps, it does not mean that you will have a download speed of 100 megabits per second, but that you could receive 100 megabits every second with your connection. Your actual internet speed comes from a combination of bandwidth and latency. If you want to know more about latency, then read this guide on "what is latency and How to reduce it" quickly.    What is Latency Latency is...

18

Apr, 19

Fiber optics is a medium that is used to transmit light pulses over a long distance through glass or plastic strands. These strands are like real fibers, and they play a very important role in data networking systems and telecommunication services. This fiber optic technology will soon become the only backbone of broadband. There are many reasons to justify this claim, and it is not only because of its reach, speed, and availability. The optics technology perfectly aligns with modern-day applications, and one such communication facility offered by this type of technology is fiber...

Since the development of the first hard drive in 1956, which weighed over a thousand kilograms and stored only 5MB of data, storage technology has come a very long way. Modern drives can now store up to 12TB (i.e. 12 million MB) of data and reach up to 150 IOPS (i.e. Input/output Operations Per Second). Over the past few years, however, the speed of innovation has slowed down and the rate at which the HDD capacity increases annually has decreased, as we are reaching the maximum possible data density on a single platter. This has led to the development of new HDD storage technology such as...

So, you got yourself a remote server and wish to access it. Well, there are multiple ways you could do so. If it is a Windows server, the most common way you would remotely control it is through Microsoft’s proprietary remote desktop protocol. however, If you have opted for the more widely used Linux operating system on your server, this option is not available. Instead, you would use Telnet or SSH to access a remote server, the latter being the better option. This tutorial will help you to understand the comparison between Telnet vs SSH Protocols, their advantages, disadvantages, and...

26

Apr, 19

There are many ways to monitor the processes happening on your Linux server. Today, we will showcase a useful system monitor named htop.   What is HTOP? Htop is an interactive system monitor, process viewer, and process manager designed for Unix systems. Originally designed as an alternative to the Unix program top, it provides much of the same functionality as top, but offers much greater flexibility over how system processes can be viewed. Unlike top, htop provides the full list of running processes instead of the top resource-consuming ones. Htop can display processes as a tree...

30

Apr, 19

What is DNSBL and Why Use It?

No one likes spam, and while most of it is simply a slight annoyance, there can be dangerous implications to not filtering your incoming mail. While simple spam can just be deleted, certain unwanted messages can include malicious code or links that take you to phishing sites. In order to improve your protection against such attacks, and to simply get rid of pesky spam messages, many turn to a DNSBL.   What is DNSBL? Domain Name System Blacklists (DNSBL) are spam blocking lists that allow system moderators to block messages from specific systems that have a history of sending spam.  As...

Have you ever come across a link that would look enticing and you want to click on ahead and check what's more in it? Such links, games, and other things would seem enticing at first, but they can prove to be dangerous for you. Using such misleading links that will make you want to click on it is called "Clickjacking".  Clickjacking is an attack wherein the user is tricked into clicking a website or any page element without his/her intention. This term is derived from "click hijacking", and this technique is utilized on websites by cloaking questionable content on a trusted website. It is...

Microsoft Windows Server 2008 and 2008 R2 were both great technological breakthroughs in the hosting fields, introducing new features which are essential for any modern system, such as a shift from 32-bit to 64-bit computing, advanced analytics, and budding server virtualization technologies. Unfortunately, all good things must come to an end, including Microsoft’s support for these industry-forming server operating systems. As many know, misfortune never comes alone, so along with their Windows Server 2008 versions, Microsoft is also discontinuing support for SQL Server 2008 and 2008...

05

Jun, 19

Last month, Microsoft announced that PowerShell 7 will be the next release of PowerShell. Recently, a blogpost was published by Steve Lee, the Principal Software Engineering Manager at PowerShell, which discloses details about the areas that will be investigated for the PowerShell 7 release. What is PowerShell? Most have heard of the Command Prompt, but majority are unaware that Windows Server comes with a way more powerful tool, the Windows PowerShell. In fact, it is intended to replace the Command Prompt, since it delivers more power and control over the Windows operating system. Windows...

What is a Blacklist? Depending on the source, the amount of daily spam emails being sent is anywhere between 80 to 95% of all emails sent on the internet that day. With such large numbers, most experts agree that manually sorting through your inbox to get rid of spam has become highly inefficient. As such, public blacklists of mail servers and IP addresses have been created to prevent repeat offenders from relaying spam. A blacklist is a list of blocked domains, email addresses or IP addresses. When a website gets on one of these lists, users can no longer access the site directly and...