Apr 282020


How to install Nginx on Ubuntu

  • 28 April 2020
  • ADM

Nginx is one of the most popular web servers in the world. It is also known to be more resource-friendly than Apache in most cases and can be used as a web server or as a reverse proxy.

May 112020


Install and use firewalld on Ubuntu

  • 11 May 2020
  • ADM

Firewalld is one of the Linux firewall management tool and it is available on the in the Ubuntu's default repositories, therefore it is available to be installed from these repositories using the apt packaging system.

Apr 152020


Base64 Decode in Golang

  • 15 April 2020
  • ADM

Golang programing language provides built-in suport for base64 decoding. The base64 functions are available into the encoding/base64 package. It provides implementations for both Standard, with or without padding and Filename safe Base64 decoding variant.

Apr 122020


Arrays in Golang

  • 12 April 2020
  • ADM

An array is a data structure with a fixed size containing elements (items) of the same type. Iterate over an array using for loop or for range loop.

Mar 172020


How to check the JDK version of a class file

  • 17 March 2020
  • ADM

When running a Java application it is mandatory that the JRE version to match or to be higher that the JDK version used to compile the application.

You will get the "Unsupported major.minor version 52.0" error when trying to run an Java 1.8 application using a lower version of Java.

Feb 132020


Robots.txt File in SEO

A robots.txt file tells search engine crawlers which pages or files the crawler can or can't request from your site. This is used mainly to avoid overloading your site with requests; it is not a mechanism for keeping a web page out of Google. To keep a web page out of Google, you should use noindex directives, or to password-protect your page.