The Keck Observatory – Case Study

You might be wondering what an article about the Keck Observatory in Hawaii has to do with a VNC?

Well, that is precisely what I asked myself as well when I was reading the websites for Real VNC.

They have created an interesting case study about the Keck Observatory, and I’m writing about that in this article. Go here if you want to read the full case study on their website.

W.M. Keck Observatory on Mauna Kea Volcano

Case Study About the Keck Observatory

The W.M. Keck Observatory is located atop Mauna Kea in Hawaii and is the host to the twin optical and infrared telescopes used for astronomical research by eminent scholars.

Each of the telescopes weighs about 300 tons, and the results produced by them are highly precise, notably in the range of nanometers. Astronomers from all around the world reside in Mauna Kea from time to time to study the deepest secrets of the universe by utilizing one of the largest and most precise twin optical and infrared telescopes in the world.

The two telescopes, namely Keck I and Keck II are 10 meters long and use the concept of active optics wherein a single primary mirror is made up of 36 smaller hexagonal segments that ultimately function as a single unit.

This accounts for the enormously large size of the two telescopes. The California Association for Research manages it in Astronomy, headed by representatives from Caltech and the University of California.

The observatory is also a host to several high precision instruments ranging from the Multi-Object Spectrometer to Keck Cosmic Web Imager. These instruments play an essential role in collecting astronomical data and thus helping in performing cutting edge scientific research.

Keeping in par with the current mission of the Keck Observatory of encouraging the imagination of humankind to advance the frontiers of astronomy, several steps have been taken to further the interest of the younger generation in astronomy.

Some of the activities initiated by the observatory to directly involve the general population are organizing educational tours, stargazing programs, and internship drives.

The scientists and staff at the observatory are also highly dedicated and adamant about engaging the students in the field of astronomy through internships and mentorships. In this way, they are doing their part in shaping the next generation of scientists and engineers.

Mauna Kea skyline showing observatories

The Hawaiian island is well-suited for the location of astronomical observatory due to its bright and calm night sky, glare-free environment, and low humidity. One of the reasons which make the dormant volcano of Mauna Kea a suitable location for the observatory is its proximity to the equator.

Over the years, Keck Observatory has been instrumental in figuring out the outer space and has even witnessed some of the groundbreaking discoveries in the past 30 years.

Some of the essential and amazing discoveries made by the twin telescopes in the field of astronomy are finding the center of the Milky Way Galaxy, discarding Pluto as the ninth planet, detecting methane on Mars, approximating the rate at which the universe is expanding, and so on. These notable discoveries have paved the way for further research in these particular sub-fields.

From the information laid down above, it can be concluded that the Keck Observatory since the time of its inauguration has done its part in advancing science and delivering adequate knowledge among the masses.

With its voluntary initiative of creating awareness among the general public about the basics of astronomy through stargazing programs and field trips, it can be said that the observatory acts as a teaching institute in addition to its primary function as an astronomical observatory.

Last Words

As said earlier, feel free to visit Real VNC’s website to read the full case study, as I only made a quick round-up of it.

One last note, maybe you are interested in stargazing and everything that has to do with that? If that’s the case, have a look at my buddy Dennis Boucher’s website called Exoplanet Science. Here you’ll find a great selection of beginner telescopes that will help you expand your hobby greatly!

What is Virtual Network Computing (VNC)?

The other day my wife was surfing on a website named TIAS, because my youngest son Jake needed a new pair of soccer cleats. All of a sudden, the computer crashed, and she could not proceed.

I was not in town because I hade an important business meeting the next day. She called me that there was a problem she could not fix. So I grabbed my laptop and connected via a so-called VNC client so that I could fix the issue from out of my hotel room.

This little incident was the inspiration why I created this website in the first place. I hope it helps people with similar issues from all around the world. So what exactly is Virtual Network Computing?

Virtual Network Computing

Before we go into the depths of the topic, let us first know what is Virtual Network Computing (VNC)?

VNC (virtual network computing) is a more recent kind of technology that allows remote desktop sharing, which means a person can access the data on his computer on another desktop. It can be said
to be a type of remote access on computer networks. This allows a user to see his/her own computer’s visual desktop display on another computer. This helps control and manipulate that computer over a network connection.

VNC is not only used in home computer networks to access a computer from different parts of the house, but it is also used by the IT departments of big multinational companies to troubleshoot any problem without having to waste any time remotely. Whatever be its scale of operation, VNC is indeed one of the most useful technologies of recent times.

Virtual networks connected to a computer

What Are VNC Applications?

VNC applications are applications that enable you to install VNC technology on your desktop. VNC apps were first introduced in the 1990s. The first successful VNC application was Real VNC. Due to massive technological developments after that, many VNC applications have cropped up in the market — the best ones being:

Ultra VNC and Tight VNC. Nowadays, VNC applications are available for every kind of operating system; whether it is Windows or Linux, you can get a VNC application for everything. If you do your research, you will also come across many efficient VNC applications that are not only efficient but are also free and easily downloadable.

How Does VNC Work?

VNC is based on a server/client model. A client-server model is a network model that easily enables interaction with the client and the server. VNC uses a unique network protocol known as the remote frame buffer (RFB). Individuals who use VNC or VNC clients share user input like mouse movements touches with the server, clicks, and keystrokes.

VNC servers capture the data and the functioning of the local computer and share it back to the client. On the server, connections over RFB go to TCP port 5900.

VNC is indeed an easy way to be able to access your data remotely. However, sometimes VNC may be very slow and inefficient, given there is a data overload or network interference. However, the good thing about technology is that there are many alternatives to perform a single function. Hence, as you guessed it, there are also many alternatives to VNC.

Various multinational tech giants have contributed recently to develop their VNC apps. Microsoft, Chrome, and Apple have developed Windows Remote Desktop (WRD), Chrome Remote Desktop, and Apple Remote Desktop (ARD), respectively.

This is all about the question what is Virtual Network Computing (VNC)? VNC allows a user to gain access to his/her data over another computer and enables data sharing. A VNC user should be immensely careful with VNC networking and make sure that all his data that is shared is safe and protected.

How to Install a VNC Server on Linux

A few days ago, I was browsing for some wedding gifts at partywedding.com because my brother is getting married again (for the second time!). However, that is not the issue here, the other day he was asking me about setting up a VNC server on Linux.

It shocked me a little as I always thought it’s quite easy to set that up. However, it motivated me to create this short guide, so have fun!

Installing a VNC Server on Linux

A VNC server is indeed a handy tool to have in today’s world. Whether you are an individual that likes having access to your desktop at all times or whether you are a firm that needs this kind of access in situations that require fixing or troubleshooting, then VNC is the thing for you.

VNC or virtual network computing allows you to access a particular desktop by any device or desktop where the VNC is installed. Now coming to the installation of a VNC server, you may have come across articles that guide you on how to install a VNC network on Windows.

However, since Linux is a comparatively lesser-used operating system, there is barely any guidance on how to install a VNC server on Linux.

Installing a VNC on Linux is easy and takes very little time. Here are a few things you should need to install before VNC on your computer with a Linux operating system.

  • Ubuntu Server version 18.04
  • VNC Client
  • Sudo privileges for a user

How to Install on Desktop

It would help if you had a good desktop on your Ubuntu server. You will have to install the efficient Xfce desktop. For this, you have to log into Ubuntu Server and use the command:
sudo apt-get install xfce4 xfce4-goodies –y.

installing vnc server on linux

How to Install the VNC Server

There are many affordable and value for money VNC servers like VNC Viewer Plus, Tight VNC Viewer, Tiger VNC, Ultra VNC, and SmartCode Web VNC Viewer. Selecting the best VNC server for your computer is essential as the functionality and efficiency of Virtual network computing is almost entirely dependent on the efficiency of the application.

Here we will be considering TIGHT VNC to site an example. TIGHT VNC is one of the most efficient and easily installable VNC apps there is. To install this VNC software, open the terminal which you want to access remotely and enter the command: sudo apt-get install tightvncserver -y.

Once, the installation is complete; you need to use the following command: vncserver.

After this, you will be led to the VNC configuration. This page will prompt you to create new, unique passwords that only you can access. You can use this password to log into your terminal from any device. VNC passwords should usually be eight digits.

Make sure you form your password in a way that is a bit complicated and yet easy to remember. Sadly we live in a generation where identity theft and other mishaps on the internet is not unheard of. To make sure that none of your private information is tampered with, a strong password is a must.

Once you have set the login and password for access, you will have to kill the server with the command: vncserver -kill :1.

Configure the VNC Server

You will have to create a configuration file before restarting your server. Use this command: nano ~/.vnc/xstartup.

After entering this command, another file will open in which you have to write the following commands:

  • #!/bin/bash
  • xrdb $HOME/.Xresources
  • startxfce4 &

After putting the above contents, make sure you save and then close the file.

After you have successfully saved the file, change the permissions of execution with the following command: sudo chmod +x ~/.vnc/xstartup

Now that you have changed the execution permissions, the time has come to restart the VNC server. Restart the VNC server by putting in the command: vncserver

How to Connect to the Server

We will have to use tunneling to connect to the remote server. For example, if we use the SSH tunneling to connect to create a tunnel on the remote Linux desktop, we will have to put in the command: ssh -L 5901:127.0.0.1:5901 -C -N -l USER SERVER_IP.

Where USER is the username for starting and configuring the VNC server, and SERVER_IP is the remote server’s IP address. You will be subsequently prompted to enter the remote user’s password. Once it is authenticated, the secure tunnel is fully functional.

After your work is done, make sure you kill the command, and so the tunnel is shut down. And if you want to connect to the remote server again, you will have to create an SSH tunnel once more.

The above are a few steps you may follow when you are unsure of how to install a VNC server on Linux.

Apps for VNC Remote Desktop Access on Windows

The idea for this article was born when I was looking for a gift for a friend’s birthday. He is a huge computer geek, and that is why I was first browsing a German gift site called stone foot before I created this article.

Before we get into the details, let us first know what a VNC server is. As the developments in the field of technology have been increasing massively, there also have been a great number of developments in the field of servers.

In the earlier days, servers had minimal access and could be accessed by very few authorized officials in the organization. However, with the world becoming a smaller place, and organizations witnessing a massive increase in national and international clients, this limited access was no doubt going to be a problem.

This is where VNC or virtual network computer came in to save the day.

What is VNC?

VNC is a kind of network that allows remote desktop sharing. This kind of network allows a person to access a desktop display of one computer over a network connection. This kind of network is an integral part of today’s top-notch multinational organizations.

VNC is used by the IT department of these big-shot multinational organizations to troubleshoot problems on the spot.

In the absence of VNC, trained IT professionals will have to physically travel to the location of the problem and fix it. This would result in an increase in cost and time taken to correct the problem.

Clients these days are impatient and need their work completed as soon as possible. In the face of such a fast-paced world, it is always better to have apps for VNC remote desktop access on windows.

If you have indeed researched on VNC and looking for apps for VNC remote desktop access on windows, then here are a few suggestions.

remote desktop software for assistance

 

1. VNC Viewer Plus

VNC VIEWER PLUS is among the best-paid apps for VNC. For those who may be skeptical about this particular app is so expensive, it must rest assured that VNC Viewer Plus is the most value for money VNC app out there. Not only does VNC viewer plus have a high standard VNC connection capability, but it also has a feature using which you can share information with the Intel hardware, giving you complete access and uninterrupted control over the entire functioning of the PC.

2. Ultra VNC

Among the most recent VNC applications is ULTRA VNC. The name of this app is justified as it makes operating a VNC network ultra-easy and fast. Equipped with a chat feature, this VNC app comes with predetermined network types you can choose from to avoid confusion before jumping into a remote session.

3. TightVNC viewer

TightVNC viewer is perfect for individuals and firms who are in search of a remote desktop tool. If you want to install a VNC network on a desktop with older versions of windows, then this is the app for you. JPEG compression is another feature that can be easily used to save on bandwidth.

The above are only a few of the best VNC apps for windows out there. Since VNC is indeed concerned with privacy and being able to access another computer, make sure you install a trustable and safe app like the ones mentioned above.