chris

How to Configure HashiCorp Vault on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure HashiCorp Vault on Debian 10

Introduction This guide explains how to Configure HashiCorp Vault on Debian 10 on Debian 10 Buster. Debian Buster uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 10 install with the standard […]

Read more
How to Configure Email with Sendmail on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Configure Email with Sendmail on IBM AIX 7.1

Introduction IBM AIX 7.1 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.1 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure email with sendmail on ibm aix 7.1 on […]

Read more
Spring Bean Life Cycle — step-by-step DevOps tutorial on Progressive Robot

Spring Bean Life Cycle

URL: https://www.progressiverobot.com/spring-bean-life-cycle/ Today we will look into Spring Bean Life Cycle. [Spring Beans](/community/tutorials/spring-ioc-bean-example-tutorial "Spring IoC Container and Spring Bean Example Tutorial") are the most important part of any Spring application. Spring ApplicationContext is responsible to initialize the Spring Beans defined in spring bean configuration file. Spring Bean Life Cycle ![spring bean life cycle](images/spring-bean-life-cycle-section-1.png) Spring Context […]

Read more
How to Configure SSL/TLS with OpenSSL and Self-Signed Certificates on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Configure SSL/TLS with OpenSSL and Self-Signed Certificates on RHEL 8

Serving web traffic over HTTPS requires a valid TLS certificate and a correctly configured web server. On RHEL 8, the openssl tool is available out of the box and lets you generate RSA keys, create certificate signing requests, and issue self-signed certificates entirely from the command line. Self-signed certificates are ideal for internal services, staging […]

Read more
Como escrever pacotes em Go — step-by-step Programming tutorial on Progressive Robot

Como escrever pacotes em Go

Um pacote é composto por arquivos em Go que ficam no mesmo diretório e têm a mesma instrução de pacotes no início. Você pode incluir funcionalidades adicionais dos pacotes para tornar seus programas mais sofisticados. Alguns pacotes estão disponíveis através da Biblioteca Padrão de Go e, por…

Read more
How To Set Up Time Synchronization on Debian 10 — step-by-step Linux tutorial on Progressive Robot

How To Set Up Time Synchronization on Debian 10

Accurate timekeeping has become a critical component of modern software deployments. Debian 10 has time synchronization built in and activated by default using the standard ntpd time server, provided by the `ntp` package. In this article we will look at some basic time-related commands, verify that ntpd is active and connected to peers, and learn how to activate the alternate systemd-timesyncd network time service.

Read more
openSUSE Tumbleweed — dovecot23 — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — dovecot23 — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2025:14715-1 (see also SUSE bugzilla) Related CVEs: CVE-2017-14461 CVE-2019-11500 CVE-2019-3814 CVE-2020-10957 CVE-2020-12100 CVE-2020-12673 CVE-2020-12674 CVE-2020-24386  +12 more Upstream summary: A specially crafted email delivered over SMTP and passed on to Dovecot by […]

Read more
CHAT