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Showing posts from August, 2020

How To Add A New MySQL User, For Beginner Database Admin And Backend Developer

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MySQL database logo Adding new MySQL is not something we usually do on a daily basis as we are just stuck using a single user. I constantly forget how to add users because we don’t need to add users all the time. Maybe this article can help. Here’s how you add a new user to your MySQL database using terminal. 1. Create new user with username newuser, and host localhost, it can be an IP address CREATE USER 'newuser'@'localhost' IDENTIFIED BY 'YourP@ssword123'; 2. Add our new user permission, in this case we use asterisk symbol, mean this new user has root privileges GRANT ALL PRIVILEGES ON * . * TO 'newuser'@'localhost'; 3. Commit or Reload the changes FLUSH PRIVILEGES; Adding a new MySQL user is a very basic command, every database admin or developer must know these commands. It’s much easier to add new user by using some database management tools like MySQL workbench, you don’t need to remember MySQL command, but it is sometimes yo...
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Gitlab Or Github, Which One Should You Choose

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Gitlab Or Github, Which One Should You Choose I really like Gitlab, one of the best platforms for hosting our codes, if you are much familiar with Github, then Gitlab is the same. Only with Github, they are limited for public repositories, meaning your codes are open for public, everyone can see it, even though your code isn’t supposed to be open source. That’s why I use Gitlab, unlike Github, in Gitlab you can create unlimited private repositories.  1. Gitlab Most of the time, I don't want to expose my code to other people, because it’s something that I really work hard on, so i need to keep it secret. I am not ready for open sourcing. If you're just an individual developer like me, or a small startup team that still struggles with getting stable revenue yet.  Maybe you want to minimize your startup budget, so Gitlab is the  wisest choice for your team. Gitlab as I know as I have been using it for more than 2 years now, is a free platform for your team to collaborate usi...
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In Just One Month, Hackers Took Millions From Bitcoin Transfer

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After some famous public figures' accounts on Twitter got hacked, and tweeted some bitcoin giveaway scam. The hacker announces that the account giving away a lot of cryptocurrency for free, as long as they send them some cryptocurrency first. This leads to an estimate of hundreds of thousands of dollars in total, that user sends a bitcoin to this fake tweet. Elon Musk Twitter Account Hacked The cyber attack trends continue, now they targeted a smartwatch based company, Garmin, with a ransomware attack. Few days ago, CWT, a travel management company, got hacked too, by an anonymous hacker using ransomware asking for 10 million dollar. Although the deal ended with only CWT paying the ransom for $4.5 Million dollars in Bitcoin, it’s still considered a major loss. This CWT hacking is interesting because we can see the deal between CWT and the hackers, which the negotiation between CWT and the hacker was left on a Live chat conversation. So we can see how the deal is happening and the s...
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Popular posts from this blog

ERROR 1348 Column Password Is Not Updatable When Updating MySQL Root Password

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MySQL and MariaDB password As already mentioned in the title of this blog, this error message sometimes occurred when we are trying to update our root password database, either MySQL or MariaDB, The error says: ERROR 1348 (HY000): Column 'Password' is not updatable This is because if we use this SQL command to update our database root password, and it turn out to be Restricted by MySQL to use update on mysql database. UPDATE mysql.user SET Password=PASSWORD('1234') WHERE User='root'; The solutions for MySQL Error1348 So you can not update a user password using Update commands, to update the password, use ALTER commands instead. like the following. ALTER USER 'root'@'localhost' IDENTIFIED BY '1234'; And then you need to do the flush privileges to commit previous queries (that alter command above) into the system, simply do like this. flush privileges; So now you have your root with password 1234. Although it is recommended to...
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How To Create Spring Boot Project Using Netbeans

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Spring Boot is a handy tool that simplifies the development of Spring Framework applications by reducing the need for cumbersome configuration. In this tutorial, I'll guide you through creating a Spring Boot application using the Netbeans IDE. While you can certainly create a Spring Boot application in Netbeans manually, it's much easier with a plugin designed for Spring development. Here's a step-by-step guide to get you started: 1. Install the Spring Boot Plugin: Open Netbeans and navigate to the Tools menu. Click on "Plugins." Once the Plugins window opens, select the "Available Plugins" tab. Look for the "Nb SpringBoot" plugin, then install and activate it. 2. Create a New Spring Boot Project: After restarting Netbeans IDE, you can create a new project with Spring Boot. Go to File > New Project. Under Categories, select Maven, then choose "Spring Boot Basic." 3. Add Dependencies: With your new project created, open the po...
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Spring Kafka - How to use ReplyingKafkaTemplate send and reply synchronously

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Microservice Spring with Apache Kafka Today, I want to share how to use Kafka. It's quite interesting once you get the hang of it, and I hope my explanation will make it a bit easier for you. So, Kafka is primarily known as an asynchronous messaging queuing system. This means it allows different parts of your application to communicate with each other without waiting for immediate responses. However, there are times when you might need a more immediate reply from another service in your project. Luckily, Kafka can handle this too. Here’s how it works: The client side sends a message to the server side via Kafka. This message includes a special identifier in the Kafka header request, known as KafkaHeaders.CORRELATION_ID, along with a topic where the server should respond. The server, after processing the request, sends a message back to the same topic with the same correlation ID. This way, the client knows that the message is a response to its initial request and can act accordingl...
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