What’s New in Debian 10 Buster

Introduction The Debian operating system’s most recent stable release, version 10 (Buster), was published on July 6, 2019, and will be supported until 2022. Long term support may be provided through 2024 as part of the Debian LTS Project. This guide is a brief overview of the new features and significant changes to Debian since…

Criando Containers Otimizados para o Kubernetes

Introdução Imagens de container são o formato de empacotamento principal para a definição de aplicações no Kubernetes. Usadas como base para pods e outros objetos, as imagens desempenham um papel importante ao aproveitar os recursos do Kubernetes para executar aplicações com eficiência na plataforma. Imagens bem projetadas são seguras, altamente eficientes e focadas. Elas são…

Como Instalar o Java com `apt` no ubuntu-18-04

O autor selecionou o Open Internet/Free Speech Fund para receber uma doação de $100 como parte do programa Escreva para DOações. Introdução Java e a JVM (Java’s virtual machine) são necessários para utilizar vários tipos de software, incluindo o Tomcat, Jetty, Glassfish, Cassandra e Jenkins. Neste guia, você irá instalar várias versões do Java Runtime…

Understanding Boolean Logic in Go

The Boolean data type (bool) can be one of two values, either true or false. Booleans are used in programming to make comparisons and to control the flow of the program. Booleans represent the truth values that are associated with the logic branch of mathematics, which informs algorithms in computer science. Named for the mathematician…

Understanding Maps in Go

Most modern programming languages have the concept of a dictionary or a hash type. These types are commonly used to store data in pairs with a key that maps to a value. In Go, the map data type is what most programmers would think of as the dictionary type. It maps keys to values, making…

How To Write Comments in Go

Introduction Comments are lines that exist in computer programs that are ignored by compilers and interpreters. Including comments in programs makes code more readable for humans as it provides some information or explanation about what each part of a program is doing. Depending on the purpose of your program, comments can serve as notes to…

How to Access MySQL Error Logs

Oftentimes, the root cause of slowdowns, crashes, or other unexpected behavior in MySQL can be determined by analyzing its error logs. On Ubuntu systems, the default location for the MySQL is /var/log/mysql/error.log. In many cases, the error logs are most easily read with the less program, a command line utility that allows you to view…