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How to generate self-signed certificates

Some time you need to create self-signed certificates for public / private keys. The software can help you do that is “OpenSSL”. I will declare detail steps. 1. What do we need? we do need server public / private key & client public / private key. 2. How do we do? I will demo the…

Coffee brewing at home with Moka Express

As a software developer, coffee is the energy to me. Like you put the gas to your car to start the engine, the developers turn café into codes. Let’s meet today topic. I’ll be making coffee with Moka Express, an awesome coffee maker. You can check out information, where to buy in Vietnam at here.…

intel core i7 9700, 48 GBs RAM cannot run windows 11?

Microsoft has just introduced about Windows 11, the next of Windows. They also have launched the Windows 11 official page. If you get excited about the “new” Windows and wonder if your current system can run it, Microsoft provides a tool to check at here. I was confident, with the i7 9700 CPU, 48 GBs…

My Spotify 2020 top songs

Hello. 2020 is going to the end. Well, it “was” a strange year for me, for you, and for the world. I do not know what to say about this year. Anyway, it should not be “the worst year ever”. To me, when something is terrible, it is a chance to make the change.  So,…

Creating Objects in Java (part 1)

In this post, we discuss about creating objects in Java. Wait a minute. Why I want to talk about this? Well, creating objects in Java is “easy”. Java is an Object-oriented programming language, creating objects is the simplest thing of it. When the thing looks easy, sometimes, it might drive you lost. Contents 1. Introduce2.…