Sunday, August 9, 2020

Domain Introductions (

Domain Introductions (

Domain and hosting are two things that cannot be separated. If you want to build a website, you'll need both.

In this chapter, you will find out not only what a domain is, but also the differences between domain vs web hosting, as well as the types of domains themselves.
Types of Web Hosting (

Types of Web Hosting (

In general, there are 4 types of web hosting, namely Shared Hosting, Virtual Private Server (VPS), Dedicated Server Hosting and Cloud Hosting.

All types of web hosting act as a place to store website data.

However, they have different specifications, ranging from price, control over servers, size of data storage, level of security, server speed and also reliability.
Introduction to Web Hosting (

Introduction to Web Hosting (

Before going any further about web hosting, it would be nice if you get to know what web hosting is? and why do you need a web hosting service?

All will be discussed in this chapter 1 so that you get a sufficient foundation to move up to the next stage.

What is Hosting?
Basically, web hosting is just a computer. A computer on which individuals or organizations place their websites.
Usually when talking about web hosting, it means that there is a company that provides space or a place on the computer (server) that is used to store website data.

It also provides internet connectivity so that other computers can access the files on the website.

Is it clear?

Umm .. I don't think it's clear until you realize that a website is actually a collection of computer files (such as image files, documents, audio, video ... etc) that are interrelated.

So how do you make a website consisting of computer files accessible to many people?

So we need a computer (which is usually called a server) with a high-speed internet connection.

So .... Once again, web hosting is just a computer to store data on a website.

Why Do I Need Hosting Services?

At this point you may ask questions like this:
If hosting is really just a computer for storing website data, then why do I need a hosting service? At home, I also have a computer with a high-speed internet connection?

Actually you can use your own computer at home. But it's not a very good idea, I mean it's a really bad idea.

What is the reason?

Below I give four reasons why it is almost impossible to save website data on your own computer.

Disadvantages of Using Your Own Computer

Unstable power supply

If your home's electricity goes out, your computer will shut down. Your website will also be down (inaccessible). After all, your home computer can't live 24/7, right?

Weak connection

While you may have a fast internet connection at home, it usually relates only to download speed, but not upload speed.

Because what the server needs is a high upload speed to send your website files.

Dynamic IP address

Home internet connections have IP addresses that change from time to time.

An IP address is like a home address.

Imagine your friend sends a package to your house, but your home address keeps changing, you can be sure that the package from your friend will never arrive.

Hardware maintenance is done by yourself

It could be that one time your home computer breaks, then it takes a long time to fix.

It may be several days or weeks before your computer can be used again.

During the repair, your website is inaccessible and worse, you may lose important files.

Advantages of Using Web Hosting Services

The power supply is always stable

The power supply in almost all web hosting services is always supported by an adequate generator engine, which can keep the server alive even in conditions of power outages.

Super fast and stable connection

In web hosting services, they have very fast upload speeds and can serve tens, hundreds, thousands and even tens of thousands of visitors at the same time.

Static IP address

By using a web hosting service, you will have a dedicated IP that only you have, different from other users and never changes.

That means people will always find your website easily.

Hardware maintenance is carried out by a professional team

You won't worry about hardware maintenance, because the best web hosting providers have a team of professionals who can keep their hardware in good working order and in good performance.

The good thing is that most web hosting providers will create backup files for your website so that you won't feel anxious if the files on your website are lost or have errors.

Friday, July 10, 2020

Virgin Orbit Fails on First Rocket Launch

Virgin Orbit Fails on First Rocket Launch

Richard Branson's Virgin Orbit on Monday (5/25), failed in a new rocket test by Boeing 747 and was launched over the Pacific Ocean off the coast of Southern California.

The initial launch seemed to go well until just after the rocket was released from under the left wing of the jumbo jet dubbed Cosmic Girl

"We confirm the release of the rocket from the aircraft. However, the mission was stopped immediately to the flight. Cosmic Girl and the flight crew were in a safe state and returned to base," Virgin Orbit said via an official Twitter account commenting on the launch.

There was no further notice of possible obstacles with the rocket carrying the test satellite.

Modified jumbo jets take off from Mojave Air and Space Port in the desert north of Los Angeles and glide just outside the Channel Islands, where the rocket release takes place.

The rocket should have fallen for a few seconds before the first step of the two stages was ignited and pushed it ashore towards the South Pole to load the displayed charge into low Earth orbit.

The Virgin Orbit flight aims to collect data at each step of the launch process rather than using orbiting satellites.

These efforts were carried out after five years of development of the 21.3 meter LauncherOne rocket .
Hundreds of Israeli Websites Have Been Hacked, Allegedly by Iran

Hundreds of Israeli Websites Have Been Hacked, Allegedly by Iran

In the midst of the Covid-19 pandemic, cyber attacks between countries have also become more widespread (photo: illustration).

Cyber ​​or cyber attacks have taken place quickly and are getting worse around the world during these days of global uncertainty due to the corona virus. Countries accuse one another of involvement in cyber warfare, and each also claims to be a victim of cyber attacks. International organizations dealing with the COVID-19 pandemic have also been targeted.

The situation can be illustrated like a high-stakes cyber ping-pong game. Israel's National Cyber ​​Directorate announced that hundreds of Israeli websites had been hacked, possibly by Iran.

The contents of these websites have been replaced with warnings in Hebrew and English that "the countdown to the destruction of Israel has begun."

US will Launch Astronauts Again into Space

US will Launch Astronauts Again into Space

Two NASA astronauts Robert Behnken (left) and Doug Hurley pose at the Kennedy Space Center, Cape Canaveral, Florida, Wednesday (5/20).

United States Space Agency or NASA and the Kennedy Space Center in Florida welcomed the arrival of two astronauts who are scheduled to be launched into space Wednesday (5/27) next. They are the first humans to depart from the US in the last 9 years.

NASA pilot pilots Doug Hurley and Bob Behnken arrived from Houston on a NASA jet on Wednesday (5/20). They will make history as the first astronauts to fly into space using commercial aircraft.
Japan Launches New Unit to Increase Space Defense

Japan Launches New Unit to Increase Space Defense

Japan has launched a new space defense unit on Monday (5/18) to monitor and overcome threats to its satellites.

The Space Operations Squadron, which is part of the Japanese Air Self Defense Forces, currently only has 20 members, and is expected to expand to around 100 members as soon as the unit is fully operational in 2023.

The role of the unit is mainly to monitor and protect Japanese satellites from enemy attacks or space junk, such as fragments of satellites and rockets.
Japanese Defense Minister Taro Kono (left) handed the flag of the Space Operations Squadron unit to unit head Toshihide Ashiki (right), at a launch ceremony at the Ministry of Defense in Tokyo, Japan, Monday.

The unit will also control satellite-based navigation and establish communications with other military units in the field.

The launch of the new unit took place amid growing Japanese concern about China and Russia trying to find ways to interfere in, disable and destroy satellites.

The unit will collaborate with the US Space Command formed by President Donald Trump last year, and Japan's Space Exploration Service, said Japanese Defense Minister Taro Kano.

This new unit is Prime Minister Shinzo Abe's ambition to encourage the Japanese Self-Defense Forces to enhance its international capabilities and role. He wants Japan to increase cooperation and compatibility of its weapons with the US in the face of China and North Korea which have increased military capabilities.
NASA Contracts 3 US Companies for Landing on the Moon

NASA Contracts 3 US Companies for Landing on the Moon

American national space agency, NASA, gave contracts to three American companies to make spacecraft to land humans on the moon in 2024.

In a long-distance press conference on Thursday (30/4), NASA announced it was choosing Blue Origin, Jeff Bezos's space exploration company, which also owns the Washington Post and newspapers; Dynetics, a research company, a subsidiary of Leidos, based in Huntsville, Alabama; and SpaceX, a company based in Hawthorne, California, owned by Elon Musk.

NASA says the three companies will compete to design and develop a system for the agency's Artemis program, which aims to land humans on the moon for the first time since the 1970s. The project will also create a system in 2028 that can be used to explore the solar system.

In a statement, NASA said the three commercial partners would improve the landing concept in the months to February 2021. The agency would evaluate which contractors would carry out the initial demonstration mission, and from that mission, NASA would determine the final lunar landers.

The Washington Post reported that both NASA and the White House still had to convince Congress to fund the program, which was projected to cost 35 billion dollars by 2024.