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Docker vs. Vagrant: Which is Better for Development?

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Docker vs. Vagrant? This is a question that many developers and IT professionals have asked themselves when deciding whether to set up a virtual machine or virtual environment.

If you’re just a solo developer, then you usually won’t have to worry about this. You’ll be using the same machine every day. You’ll be using code that works with your specific development environment, and you’ll be pushing it to the same location.

However, if you’re working with other developers on a project, you can run into some serious problems. It’s highly unlikely that each developer on the team is using the same machine. Some will be using Mac, some Windows, and some Linux. This can create a lot of small inconsistencies in the code that’s pushed.

The Need For a Virtual Development Box

Developers needed a way to create a stable virtual box that their whole team could access. This virtual box would maintain consistency. It’s set up to run on a single operating system, with pre-set features and functionality. When developers are finished coding for the day, they can push their code to the virtual box, integrate it with the other code, and ensure that it’s working smoothly.

Docker and Vagrant are two solutions that operate on the principle of virtual development environments. They offer very different solutions that are proven to work very well. In a minute, we’ll go into the specific differences between the two, but first, we need to understand their methods of operation. Docker uses what’s called a virtual environment, and Vagrant is a virtual machine manager.

Virtual Machine

A virtual machine is essentially a cloud server that runs on your machine. It uses the resources provided by your machine to define its limitations (storage, memory, processing power), but it operates as a completely separate virtual machine. Think of it as a computer within your computer. This virtual machine has its own BIOS, network adaptor capabilities, and has allocated processing power and memory. You can install any operating system and software that you like onto your virtual machine and can log into it and use it with a few simple lines from your command line.

Hypervisors

All virtual machines run on something called a hypervisor. These hypervisors act as digital supervisors for the virtual machine to ensure that it’s running properly and that no significant problems are being encountered. Some popular hypervisors used today are:

  • VM Ware
  • Microsoft Hyper-V
  • Xen Server
  • KVM

These hypervisors are the software, firmware, and hardware responsible for the creation and maintenance of your virtual box. They are the layer between your native computer and your virtual machines and are vital for their continued functionality. Hypervisors provide data and reporting and inform you whenever an update needs to be made, or resource allocation is getting scarce.

Virtual Environment

A virtual environment is similar to a virtual machine in principle. However, it has one very large key difference. The virtual environment container runs on a single kernel based on the host computers operating system and hardware limitation. This allows you to do away with all of the extra layers required by a virtual machine. You create one environment that operates on your device as an image. You can then create, develop, and deploy your code within this environment.

What is Docker?

Now that you have an idea of how the principles work let’s look at how they are applied in Docker. Docker is an open-source container technology that is based on LXC. It operates on the principles of a virtual environment. Once your download Docker onto your computer you set up a virtual container for each specific development project.

After you set up your first container, you will be able to push your code to a site such as DockerHub, which is essentially GitHub for Docker. The best part about Docker containers is that they only use the computing power that they need. There is no need for a hypervisor to manage them, as you aren’t managing several different separate operating systems.

Also, with Docker, you don’t have to preset the limitations of your container, as you would with Vagrant. In Vagrant, you would have to preset the storage, memory, and all of the other properties before launching your virtual machine. It takes up this amount of resources whether you need it or not. Since Docker runs on the same kernel as the host device, it only uses what it needs and nothing more, so you aren’t wasting overhead on unused resources and hypervisor management.

Docker gives users a far more bare-bones approach to virtual box development environments. However, there can be a lack of security. Because the Docker containers aren’t completely separate as they are in Vagrant, they are more vulnerable to hackers. If a hacker were to get access to your device, then they could easily move into your Docker containers and steal vital information about your code. However, this is a far-fetched scenario and is only an important consideration if your team is working on a state-of-the-art project.

Benefits of Docker

  • Fewer resources allocated
  • Lightweight footprint
  • Faster speeds
  • Runs on your existing kernel
  • No need for a hypervisor

What is Vagrant

Vagrant is a virtual machine manager. It allows you to create multiple virtual machines each with their own allocated resources and operating systems to allow you to develop, test, and deploy your applications on. Vagrant is the software that talks to your hypervisor and manages the creation and access to each of your virtual machines.

The drawback of Vagrant when compared to Docker is that it takes up more resources. As the operating system and hardware requirements of each virtual machine must be present, they will use this up no matter what. However, virtual machines do have the benefit of security.

Because each virtual machine is technically separate from your device and operates on a different kernel, they aren’t prone to indirect hacking attacks. For a hacker to gain access to your Vagrant virtual machines, they would first have to direct a cyber attack on your device, and then they would have to perform a new attack on each individual virtual machine. The average hacker has a very small window of time to operate, and if they have to hack two separate machines, they’re out of luck.

Benefits of Vagrant

  • Allows you to test on different operating systems
  • Separated boxes make environments more isolated
  • Increased security

Docker Vs. Vagrant For Development

Docker uses fewer resources than Vagrant and is more bare-bones which makes it a little bit faster. However, Vagrant excels in security, as each virtual machine is completely separate from the rest. Here’s a quick Vagrant vs. Docker table to put things into perspective.

 

Software Security Speed Resource Management
Docker + +
Vagrant +

 

Using Docker With Vagrant

Although many people consider Docker and Vagrant to be competitors, the two services can actually compliment each other. In fact, the Vagrant documentation encourages you to use Docker with Vagrant.

Vagrant Docker Provider

In cases like this, Docker can take over the functionality of a service such as Virtual Box. Developers can create a virtual machine using Vagrant. Later on, they may need to make small changes and use a different configuration with the same properties as the base virtual machine. Docker can be used to create these lightweight, minified versions without the developer needing to create an entirely new virtual machine.

Final Thoughts

Docker and Vagrant are both great services. For most software developers, Docker will be a quicker and more lightweight service. However, if you’re developing high-end programs that need extra security and extensive, in-depth testing environments, then Vagrant’s isolated virtual machines can be incredibly useful.

Steven Hansen is a founder of Techeries. He is a specialist in digital security solution business design and development, virtualization and cloud computing R&D projects, establishment and management of software research direction. He also loves writing about data management and cyber security.

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How to Protect Yourself From 5G Network?

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Today we live in the era of technology where technical things are developing too fast than any other developments in this world. It seems that people of this century are hungry for the new technological ideas, instead, say that it looks more of a race between the different countries of the world to show that they are the most developed country of this world. The invention of 5g technology is rather more a result of this race. 

    Now, 5g is generally known as the fifth-generation cellular network that provides broadband access. The first reasonably substantial deployment was in April 2019 in South Korea SK Telecom claimed 38,000 base stations, and KT Corporations claimed 30,000 and LG U Plus claimed 18,000 of which 85% are in the six major cities of South Korea. They use 3.5 GHz sub-spectrum in a non-standalone mode, and tested speeds were from 193 Mbit/s up and 430 Mbit/s down. 260,000 signed up in the first month and goal is 10% of phones on 5g by the end of 2019. 

    At the current scenario, six countries currently sale 5g radio hardware and 5g systems for carriers. Those companies are Samsung, Huawei, Nokia, ZTE, Datang Telecom, and Ericsson. Here the service area covered by providers is divided into a small geographical area called cells. An analog converts analog signals found in mobile phones to digital converter and transmitted as a stream of bits. All the 5g powered devices communicate with radio waves through local antennae array and low power sound receiver in the cell. There are plans to use the millimeter waves for 5g. Millimeter waves have a shorter range than microwaves. Therefore, the cells being tiny in size.  Millimeter wave antennas are smaller than large antennae used in the previous cellular networks. 5G can support up to millions of devices per square kilometer, whereas 4G supports only 100,000 devices per square kilometer.

   Now many people think that the 5G must be an improvement, right? When it comes to our mobile devices, we usually want anything that can deliver us a fast, convenient service. But these things are high, and the great things always come with a price. All electronic devices create EMF or to say electromotive force, and some of them are more harmful than others.  The problem is that cell phones and other devices emit EMF, which has a short of invisible radiation, that can cause adverse effects. The radiation from the mobile devices damages cell membranes and releases cancer-causing free radicals. This will, of course, bring health issues to us because of microwaves whose towers will be a size of shoe-box, unlike 4G towers which were of gigantic shape.

Here are a few ways in which EMF can affect our body:

  • Changes how we metabolize cells
  • Causes psychiatric effects like anxiety, depression, neurodegenerative issues
  • Cardiac arrhythmias 
  • Health flutters
  • Tachycardia
  • Fertility (affects male fertility more than female but damage is seen in both the cases)
  • Affects eyesight
  • Damages DNA

and many others.

How to Stop Yourselves from Getting Damaged by The Radiation

See we need not throw our mobile devices to stop ourselves from getting affected by it. The goal is always to support a healthy lifestyle. There are many ways in which we can do to prevent ourselves from getting affected by the radiation. Although the 5G network is not supported to be launched till 2020 but with the rush to be the best and fastest network many cities have started to pioneer the technology. Here are a few ways we can do to minimize current contact with the harmful radiation:

Keep Your Distance

We should keep a distance from mobile devices while we are not using it. We should keep our cell phones out from our room while we sleep during the night time and to avoid screens for the few hours before bedtime anyway. This is because of the effect of the blue light that can affect the ability to sleep well during the night. Do not use your phones while they are on charge because they comparatively emit more radiation in compared to the phone without in charge.

Turn It Off

When we are not using the WIFI, we should turn it off, especially at bedtime. Although it does not entirely eliminate EMF exposure but inevitably reduces it.

Use Specially Designed Headphones

Consider utilizing wired headphones for extended phone calls to decrease close, prolonged association with the device. Maximum cell phone headsets possess a wire that can act as an antenna and amplify the radiation emissions all the way to the earpiece.

Choose Your House Wisely

If feasible, do not inhabit near a cell tower or mini-station. Also, get included in local politics so that you can hear about all the potentially hazardous plans your city council has in store for you.

Stay Educated

Continually keeping yourself educated about the wireless industry and the global, governmental support of this insane endeavor.

Be Proactive and Stay Out of Fear

Remain positive and robust, and continue to improve your vibration through positive thinking, forgiveness and with increased attention towards mental, emotional, and physical health.

The article was prepared by the Team of Twitch Clip Downloader  

 

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Cyber Security

Which is the Modern Way of Cyber Security? Is it Zero Trust?

Caroline Moran

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“Do not trust with blind eyes, verify everything and then believe.” Is the same thing applies to security strategy? Yes, of course. The traditional idea of enterprise security has become obsolete in a world where unauthentic access can be achieved through many devices and applications, either from inside the network or outside of it. 

In a modern security scenario, where different device and external data sources from the Internet are all factors, strategies related to security should be built around a zero trust mechanism- which means, one that believes nothing outside or inside an organization. With this approach, the network and the unwanted threats that will come are considered in sync. Today’s security should not be viewed as one big cover protecting the entire organization.

Zero trust architecture makes sure that data and access across the network are safe and based on criteria like user identity and location. It monitors and logs all traffic understand and examine network patterns, and add authentication procedure into the security mix, all with the purpose of seeing each user and device connected to the network anytime. 

Many establishments think that zero trust is the optimal way to approach safety in an unbounded business environment. In a recently conducted survey by Forbes Insights of more than 1000 security professionals and executives, 66% of them say that they have a policy of zero trust for application, devices, and access. 

Security Within: Securing the Inside of the Organization

Threats inside the organizations are a major cause of violations and a worry among security teams, in large part since they emerge internally in a number of ways- from devices and applications- and are difficult to find quickly.

Many transgressions originate from employees within the organization. The mistakenly published critical information and insider attacks have the biggest impact than attacks by outsiders like hackers. In the end, this is due to a failure to oversee the digital identities and conduct of individuals like employees, partners and bots or applications. And they are not mandatorily harmful in intent; they can be the result of careless and badly trained personnel. 

The difficulty comes down to this: providing accessibility of data and applications to the intended users in such a way that is fast, efficient and secure. It’s a fight over access and control. Simply trusting the wide area of the enterprise’s internal environment won’t suffice because the field is constantly changing as an employee goes to new roles and needs different access right. The network keeps growing bigger- and so does the possibility of an attack.

What companies require is the ability to validate and permit users, keep track of policies and rights in place, and recognize any abnormal insider activity. It is important to make participant aware of best security execution. The idea here is not to disbelieve your employees but to understand that they are a potential source of penetration.

Zero Trust: Empowering Business

Successful cybersecurity approach minimizes the complication of the IT environment to something very simple. 

The technologies and approaches behind zero trust:

  1. Micro-segmentation: In this process, security perimeters are placed into small and isolated areas to maintain independent access for a different division of the network. With this, files in a network can be kept in a separate and protected zone. A user or programs that have access to one of those zones won’t get access to the other zones without individual authorization. This bounds security to personal workload.
  2. Application Behavior and Visibility: One of the advantages of micro-segmentation is the granting of application security that consists of built-in policies that dictate permitted behavior and protection for each build. Visibility also needs to be taken into consideration so that unwanted activity can be detected and appropriate action can be taken quickly.
  3. Multi-Factor Authentication: It adds more features to the verification puzzle that harmful actors must resolve. The age of the password is a very old concept now. The use of two-factor authentication is being used widely now by consumers and partners. Another type of authentications like biometrics is becoming popular.
  4. Least Privilege: It provides only as much access as an end user requires for a particular task. It’s an important part of zero trust identity and access management.

Security personnel is being advised to be more strategic and drive revenue through technologies as their business grows. At the same time, cybersecurity is a difficult problem to overcome from both the end user side and in the data center since the attack surface is very wide. 

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Big Challenges Facing CIOs and IT Leaders in 2019

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Big Challenges Facing CIOs and IT Leaders in 2019

The world of Information Technology is moving faster than ever. We’re seeing new challenges, problems, and trends developing every day. Some of these are bringing big changes, many that are good and equally as many that are bad. 

What are organizations worried about in 2019? What are the biggest challenges facing CIOs and IT leaders in this day and age? From privacy regulations to AI analytics, what can we expect in the upcoming months?

Image via Pexels

1. Cyber Attacks

Of course, one of the biggest challenges today is the rising security and privacy threats. What makes today’s attacks stronger? Cyber attacks are expected to be increasingly AI-driven, and that means there are more powerful than ever. 

When you look at the statistics, the situation feels even direr. Cybercrime is currently a $1.5 trillion dollar industry, and this number is only going to rise. Large and small businesses alike are becoming the targets of these cyber attacks, so it’s up to CIOs and IT leaders to make a real difference. 

2. Privacy Concerns

Users are more concerned about their data than ever before. They’re right to be alarmed. With the rise in security breaches and cybercrime, there’s a reason to believe their data might not always be safe even with trusted companies. 

More than 50% of Americans are currently seeking new ways to safeguard their own personal data. As our devices become smarter, data is being used in more plentiful ways than ever before. Again, IT leaders are at the forefront of this fight for data transparency and security. 

3. Cost Optimization

Another key challenge in the world of IT is cost optimization. Management teams often don’t truly understand what’s needed, and they might end up overspending or not spending enough. 

In 2019, IT leaders are expected to take a much stronger role in the cost optimization process to make sure companies aren’t wasting money on their tech tools and more. Read more on WGroup’s official blog to learn why traditional benchmarking isn’t enough. 


Image via Pexels

4. Digital Transformation

Digital transformation is the process of converting non-digital actions and processes into digital processes. It’s a way to optimize daily tasks and help businesses run more smoothly. You’d be surprised to learn just how many businesses aren’t kicking their own digital transformation into high gear. 

Companies who continue on the same path of tried-and-true will find themselves falling behind the competition. IT leaders and CIOs can help answer questions about whether new technology is needed for businesses of all sizes. 

5. IT Skills Gap

Finally, there’s one remaining challenge in 2019 which is the IT skills gap. Many of the top talent today is going to the same large companies, so smaller and mid-sized companies are struggling to fill in these gaps in skilled employment. 

However, the problem doesn’t lie with there not being enough prospective employees. This is a diversity problem. Looking for more diverse employees in terms of race, gender, and even education will help create a broader field of candidates. It’s up to everyone to take responsibility for bridging diversity gaps in this industry. 

Final Thoughts

The future of IT looks bright, but it’s also changing. Sometimes it can feel like things are moving too quickly. When we take a moment to think of each challenge on its own, it becomes clear just how much work needs to be done. 

Luckily, the IT leaders and CIOs of today are a powerful bunch. They’ve made it through some of the biggest challenges already, so these are simply another bump on the road. What will you accomplish next?

 

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