Platforms
Linux, Windows Server, virtualization, containers, macOS and hosting ecosystems.
Platforms
Proxmox VE
Technical reference for Proxmox VE covering O que é — Debian + KVM + interface web, Installation, VM (KVM) vs. Container (LXC), Storage — tipos suportados, Cluster e high availability, Backup nativo — vzdump, with an operational focus and practical troubleshooting guidance.
Active Directory
Technical reference for Active Directory covering Context e histórico, Architecture lógica, DNS integrado, Installation e promoção a Domain Controller, Management de objetos, Security e melhores práticas, with an operational focus and practical troubleshooting guidance.
CentOS Stream
Technical reference for CentOS Stream covering History — antes e depois de 2020, O que é Stream, de verdade, Posição no fluxo Fedora → Stream → RHEL, Architecture interna, Installation e pós-installation, Contribuindo — o diferencial real, with an operational focus and practical troubleshooting guidance.
cPanel
Technical reference for cPanel covering Context e posicionamento, Interface e organização, Recursos principais, Gestão de arquivos, E‑mail e colaboração, DNS e domínios, with an operational focus and practical troubleshooting guidance.
Debian
Technical reference for Debian covering Origem e filosofia, Releases e ciclo de vida, Stable, Testing, Unstable, Architecture do sistema de pacotes, Installation e pós-installation, Gestão de pacote — apt, dpkg, aptitude, with an operational focus and practical troubleshooting guidance.
Docker
Technical reference for Docker covering Context histórico e normativo, Container vs. VM, Architecture interna, Installation, Commands básicos, Dockerfile — construindo imagem própria, with an operational focus and practical troubleshooting guidance.
Dovecot
Technical reference for Dovecot covering Context e histórico, Architecture e componentes, Protocols — IMAP vs. POP3, Configuration principal, Security e autenticação, Monitoring e logs, with an operational focus and practical troubleshooting guidance.
EasyApache
Technical reference for EasyApache covering Context e propósito, Architecture e componentes, Perfis e modos de operação, MPM — como o Apache processa requisições, PHP — versões e handlers, Módulos Apache, with an operational focus and practical troubleshooting guidance.
Exim
Technical reference for Exim covering Context e histórico, Architecture e componentes, Configuration principal, Roteamento e entrega, Security e anti‑spam, Monitoring e filas, with an operational focus and practical troubleshooting guidance.
Group Policy (GPO)
Technical reference for Group Policy (GPO) covering Context e posicionamento, Architecture e componentes, Processamento e escopo, Configurações comuns, Security e melhores práticas, Monitoring e logs, with an operational focus and practical troubleshooting guidance.
Hyper-V
Technical reference for Hyper-V covering Architecture — hypervisor tipo 1 nativo, Editions — Server, Standalone e o cliente Windows, Installation — role no Windows Server, Gerência via PowerShell, Windows Admin Center, Failover Clustering e Live Migration, with an operational focus and practical troubleshooting guidance.
KVM
Technical reference for KVM covering Architecture — KVM, QEMU e libvirt, Installation, Gerência via virsh, Criar uma VM do zero, Rede — bridge vs. NAT, KVM na nuvem pública — o segredo mal guardado, with an operational focus and practical troubleshooting guidance.
macOS
Technical reference for macOS covering History e evolução, Darwin — a base Unix por baixo, Architecture do sistema, APFS — o sistema de arquivos, Terminal e shell padrão, Homebrew — o gerenciador de pacote que faltava, with an operational focus and practical troubleshooting guidance.
MariaDB
Technical reference for MariaDB covering Context e histórico, Architecture e storage engines, Configuration no cPanel/WHM, Security e hardening, Monitoring e logs, Backup e recovery, with an operational focus and practical troubleshooting guidance.
PHP
Technical reference for PHP covering Context e histórico, Versions e ciclo de vida, Handlers — mod_php, suPHP, PHP-FPM, Configuration — php.ini e extensões, OPcache e performance, Security e boas práticas, with an operational focus and practical troubleshooting guidance.
Podman
Technical reference for Podman covering Context histórico e normativo, Architecture — sem daemon, de verdade, Rootless — como funciona sem privilégio, Installation, Compatibilidade com comando Docker, Pods — o conceito que o Docker não tem nativo, with an operational focus and practical troubleshooting guidance.
RHEL
Technical reference for RHEL covering History e modelo de negócio, Subscription — como funciona, Architecture interna, Gestão de pacote — dnf, CentOS Stream — o upstream público, Junho/2023 — a restrição de código-fonte, with an operational focus and practical troubleshooting guidance.
Rocky Linux / AlmaLinux
Technical reference for Rocky Linux / AlmaLinux covering Dezembro/2020 — a morte do CentOS clássico, Rocky Linux — origem e governança, AlmaLinux — origem e governança, Diferenças reais entre as duas, Adoção internacional — CERN e Fermilab, Architecture interna e compatibilidade binária, with an operational focus and practical troubleshooting guidance.
Ubuntu Server
Technical reference for Ubuntu Server covering Origem e context histórico, Ciclo de release — LTS vs. interim, Architecture interna, Installation e pós-installation, Rede — netplan, Snap — empacotamento próprio da Canonical, with an operational focus and practical troubleshooting guidance.
VMware (ESXi + vSphere)
Technical reference for VMware (ESXi + vSphere) covering Architecture — ESXi (hypervisor) e vSphere (gerência), Installation de ESXi, Gerência via vSphere Client, Novembro/2023 — a aquisição pela Broadcom, O novo modelo de licenciamento, Impacto real reportado no mercado, with an operational focus and practical troubleshooting guidance.
WHM — Web Host Manager
Technical reference for WHM — Web Host Manager covering Context e histórico, Architecture do ecossistema WHM/cPanel, Installation e licenciamento, Gestão de contas e pacotes, Resellers e privilégios, Services e ports, with an operational focus and practical troubleshooting guidance.
Windows Server
Technical reference for Windows Server covering Context e histórico, Editions e licenciamento, Architecture interna, Installation e pós-installation, Roles e Features, Security e hardening, with an operational focus and practical troubleshooting guidance.
Xen (XenServer / XCP-ng)
Technical reference for Xen (XenServer / XCP-ng) covering Origem — o hypervisor tipo 1 pioneiro, XenServer — o produto Citrix, XCP-ng — o fork open-source, Architecture — paravirtualização e Dom0, Installation (XCP-ng), Gerência via linha de comando — xe, with an operational focus and practical troubleshooting guidance.