Crear errores personalizados en Go
Go ofrece dos métodos para crear errores en la biblioteca estándar: errors.New y fmt.Errorf. Cuando comunica información de error más complicada a sus usuarios, o a usted mismo al…
Gerenciamento de Configuração 101: Escrevendo Receitas do Chef
Em poucas palavras, o gerenciamento de configuração de servidor (também conhecido como IT Automation) é uma solução para transformar a sua administração de infraestrutura em uma base de código, descrevendo todos os processos necessários para fazer o deploy de um servidor em um…
Debian 9 systemd Service Fails with Exit Code 1
🟡 Medium ⏱ 5–30 min Last verified: 21 July 2019 Affected versions: Debian 9 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors & […]
RHEL 8 fapolicyd Blocking Trusted Application Execution
🟡 Medium ⏱ 5–30 min Last verified: 21 July 2019 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors & Cross-Refs References & Further […]
How to Configure Role-Based Access Control (RBAC) 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 role-based access control (rbac) on ibm aix 7.1 […]
How to Configure PostgreSQL High Availability with Patroni on SLES 12
Introduction This tutorial covers How to Configure PostgreSQL High Availability with Patroni on SLES 12 on SLES 12. SLES 12 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 12 system is up to […]
openSUSE Tumbleweed — ved — vulnerability — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read • Source: SUSE advisory openSUSE-SU-2018:1137-1 (see also SUSE bugzilla) Related CVEs: CVE-2018-1000156 Upstream summary: GNU Patch version 2.7.6 contains an input validation vulnerability when processing patch files, specifically the EDITOR_PROGRAM invocation (using ed) can result in […]
How to Install Software with installp 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 install software with installp on ibm aix 7.1 on […]
How to Use AIX System Backup with mksysb on IBM AIX 7.2
Introduction IBM AIX 7.2 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 7.2 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to use aix system backup with mksysb on ibm aix […]
How to Set Up NFS on SLES 15
Introduction This tutorial covers How to Set Up NFS on SLES 15 on SLES 15. SLES 15 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Step 1 — Install NFS Server zypper install -y nfs-kernel-server Step 2 […]