772
Grupo oficial de Red Hat en Español. Web Oficial: www.redhat.com
https://youtu.be/SPVNKcfw1HU?si=BRs84yFdJdTzTOH0
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Buenas noches a todos, alguien ha montado un cluster pacemaker con dos nodos ? Tengo un problema con el mecanismo de fencing, cuando un nodo muere de forma brusca el mecanismo fencing se activa pero se queda en estado Unclean y no mueve los recursos del cluster al nodo superviviente
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Y uno aquí batallando para que le funcione el wifi en virtualbox 😳
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Que tiempos!! Yo administraba y programaba en C, para un entorno SQL gestionado por informix… en aquella época los dos mejores gestores sql eran ese y oracle
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Espero poder aportar mi granito de arena a la comunidad
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https://youtube.com/shorts/vvJyvNRdmgw?feature=share
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Esto es ilegal y considero que no deberia darse publicidad a esto
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https://youtu.be/zM8tx95b0xQ?si=Liz-2edwiEcWqjez
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https://www.meetup.com/linuxdominicana/events/304032902
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!!!!! UN SALUDO PARA TODOS LOS INTEGRANTES DEL GRUPO !!!!!
Aquí les dejo el nuevo video de la serie "Administración de linux.La guía completa"
En el video se muestra de forma práctica el uso de las opciones -exec y -ok para ejecutar un determinado comando por cada resultado del comando find.
https://youtu.be/IfakllIde2A
https://youtu.be/XgpMxx39vUA?si=s8IZ181HI_v-WOyY
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Reminder: iDempiere is participating in Hacktoberfest 2024! 🔔
Don’t miss out on the chance to contribute to iDempiere and earn digital rewards! Whether you’re a seasoned developer or new to open-source, Hacktoberfest is the perfect opportunity to get involved and make a difference.
How to join:
Sign up for Hacktoberfest at hacktoberfest.com.
Contribute to iDempiere by submitting PRs (pull requests) throughout October.
Collect your digital badges for contributing!
The month is flying by, so get started today! 🚀
#Hacktoberfest #iDempiere #OpenSource #DigitalRewards #Reminder #Hacktoberfest2024
Ejemplo de guía propuesta por ChatGPT:
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Key Features
Become a pro at system administration from installation to container management
Secure and harden your Linux environment using SSH, SELinux, firewall, and system permissions
Gain confidence to pass the RHCSA exam with the help of practice tests
Book Description
With Red Hat Enterprise Linux 9 becoming the standard for enterprise Linux used from data centers to the cloud, Linux administration skills are in high demand. With this book, you'll learn how to deploy, access, tweak, and improve enterprise services on any system on any cloud running Red Hat Enterprise Linux 9.
Throughout the book, you'll get to grips with essential tasks such as configuring and maintaining systems, including software installation, updates, and core services. You'll also understand how to configure the local storage using partitions and logical volumes, as well as assign and deduplicate storage. You'll learn how to deploy systems while also making them secure and reliable.
This book provides a base for users who plan to become full-time Linux system administrators by presenting key command-line concepts and enterprise-level tools, along with essential tools for handling files, directories, command-line environments, and documentation for creating simple shell scripts or running commands. With the help of command line examples and practical tips, you'll learn by doing and save yourself a lot of time.
By the end of the book, you'll have gained the confidence to manage the filesystem, users, storage, network connectivity, security, and software in RHEL 9 systems on any footprint.
What you will learn
Become well versed with the fundamentals of RHEL9―from system deployment to user management
Secure a system by using SELinux policies and configuring firewall rules
Understand LVM to manage volumes and maintain VDO deduplication
Manage a system remotely using SSH and public key authentication
Get the hang of the boot process and kernel tunable to adjust your systems
Automate simple tasks using scripts or Ansible Playbooks
Who this book is for
This book is for Red Hat Enterprise Linux system administrators and Linux system administrators. It's also a good resource for any IT professional who wants to learn system administration. RHCSA certification candidates will find this book useful in their preparation for the certification exam.
Table of Contents
Getting RHEL Up and Running
RHEL 9 Advanced Installation Options
Basic Commands and Simple Shell Scripts
Tools for Regular Operations
Securing Systems with Users, Groups, and Permissions
Enabling Network Connectivity
Adding, Patching, and Managing Software
Administering Systems Remotely
Securing Network Connectivity with firewalld
Keeping Your System Hardened with SELinux
System Security Profiles with OpenSCAP
Managing Local Storage and Filesystems
Flexible Storage Management with LVM
Advanced Storage Management with Stratis and VDO
Understanding the Boot Process
Kernel Tuning and Managing Performance Profiles with tuned
Managing Containers with Podman, Buildah, and Skopeo
Practice Exercises – 1
Practice Exercises – 2
Develop the skills to manage and administer Red Hat Enterprise Linux and get ready to earn the RHCSA certification
Key Features
Learn the most common administration and security tasks and manage enterprise Linux infrastructures efficiently
Assess your knowledge using self-assessment questions based on real-world examples
Understand how to apply the concepts of core systems administration in the real world
Book Description
Whether in infrastructure or development, as a DevOps or site reliability engineer, Linux skills are now more relevant than ever for any IT job, forming the foundation of understanding the most basic layer of your architecture. With Red Hat Enterprise Linux (RHEL) becoming the most popular choice for enterprises worldwide, achieving the Red Hat Certified System Administrator (RHCSA) certification will validate your Linux skills to install, configure, and troubleshoot applications and services on RHEL systems.
Complete with easy-to-follow tutorial-style content, self-assessment questions, tips, best practices, and practical exercises with detailed solutions, this book covers essential RHEL commands, user and group management, software management, networking fundamentals, and much more. You'll start by learning how to create an RHEL 8 virtual machine and get to grips with essential Linux commands. You'll then understand how to manage users and groups on an RHEL 8 system, install software packages, and configure your network interfaces and firewall. As you advance, the book will help you explore disk partitioning, LVM configuration, Stratis volumes, disk compression with VDO, and container management with Podman, Buildah, and Skopeo.
By the end of this book, you'll have covered everything included in the RHCSA EX200 certification and be able to use this book as a handy, on-the-job desktop reference guide.
This book and its contents are solely the work of Miguel Perez Colino, Pablo Iranzo Gomez, and Scott McCarty. The content does not reflect the views of their employer (Red Hat Inc.). This work has no connection to Red Hat, Inc. and is not endorsed or supported by Red Hat, Inc.
What you will learn
Deploy RHEL 8 in different footprints, from bare metal and virtualized to the cloud
Manage users and software on local and remote systems at scale
Discover how to secure a system with SELinux, OpenSCAP, and firewalld
Gain an overview of storage components with LVM, Stratis, and VDO
Master remote administration with passwordless SSH and tunnels
Monitor your systems for resource usage and take actions to fix issues
Understand the boot process, performance optimizations, and containers
Who this book is for
This book is for IT professionals or students who want to start a career in Linux administration and anyone who wants to take the RHCSA 8 certification exam. Basic knowledge of Linux and familiarity with the Linux command-line is necessary.
Table of Contents
Installing RHEL8
RHEL8 Advanced Installation Options
Basic Commands and Simple Shell Scripts
Tools for Regular Operations
Securing Systems with Users, Groups, and Permissions
Enabling Network Connectivity
Adding, Patching, and Managing Software
Administering Systems Remotely
Securing Network Connectivity with firewalld
Keeping Your System Hardened with SELinux
System Security Profiles with OpenSCAP
Managing Local Storage and Filesystems
Flexible Storage Management with LVM
Advanced Storage Management with Stratis and VDO
Understanding the Boot Process
https://www.youtube.com/watch?v=V7XiBzLI_gw
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Bienvenido!
Me tocó conocer un administrador de SCO Unix System V, allá por el año 1997, que recuperó un sistema al que un aprendiz ignorante borró el directorio /bin por error. Mis respetos!
Buenas noches a tod@s.. Se presenta un antiguo administrador de Unix SCO. Que luego paso a RedHat, para acabar en Ubuntu.. ahora, después de muchos años de “windowear por el mundo” quiero volver a la disciplina del sombrero rojo.
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Holland Hacks [7463801738] Ha sido reportado a los Administradores.
Parece que por tus servicios eres más bien un cracker. Los hackers se mueven por el bien común, destapando bugs y solucionando problemas, no aprovechando vulnerabilidades por dinero.
Para mi este tipo de publicidad no tiene cabida en un foro de Red Hat.
https://chatgpt.com/share/671e9f4c-9988-8010-9103-952221a383d0
Buenas, donde se puede consultar el costo de las licencias de RHEL?
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https://thedeveloperstory.com/2024/10/03/why-the-future-of-the-io-domain-extension-is-uncertain/
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!!!!! UN SALUDO PARA TODOS LOS INTEGRANTES DEL GRUPO !!!!!
Aquí les dejo el nuevo video de la serie "Aprenda Python desde 0"
En el video se muestra de forma práctica como podemos realizar la instalación de Python en Linux de forma local.
https://youtu.be/6FnNwpkHsaY?si=HgInqeKaBzTaG1f6
¡Hola! Claro, puedo ayudarte a planificar tu servidor en Red Hat Enterprise 8. A continuación, te detallo los servicios que necesitas, los programas recomendados y algunos pasos básicos para configurarlos.
1. Servidor Web (Apache)
Instalación:
sudo dnf install httpd
Inicio y habilitación:
sudo systemctl start httpd
sudo systemctl enable httpd
2. Servidor de Correo
Recomendación: Puedes usar Postfix para el envío de correos y Dovecot para la recepción.
Instalación:
sudo dnf install postfix dovecot
Configuración: Necesitarás configurar los archivos de /etc/postfix/main.cf y /etc/dovecot/dovecot.conf.
3. Monitoreo del Estado del Servidor
Recomendación: Nagios o Zabbix son buenas opciones.
Instalación (ejemplo para Zabbix):
sudo dnf install zabbix-server zabbix-web zabbix-agent
Configuración: Sigue la documentación de Zabbix para configurarlo adecuadamente.
4. Servidor de Base de Datos
Recomendación: MySQL o PostgreSQL.
Instalación (para MySQL):
sudo dnf install mysql-server
Inicio y habilitación:
sudo systemctl start mysqld
sudo systemctl enable mysqld
5. Servicio de VPN
Recomendación: OpenVPN o WireGuard.
Instalación (ejemplo para OpenVPN):
sudo dnf install openvpn
Configuración: Deberás crear y configurar los archivos de servidor y cliente según la documentación de OpenVPN.
6. Servicio FTP
Recomendación: vsftpd es una opción segura y fácil de usar.
Instalación:
sudo dnf install vsftpd
Inicio y habilitación:
sudo systemctl start vsftpd
sudo systemctl enable vsftpd
7. Interfaz Gráfica (GUI)
Si no tienes una GUI instalada, puedes agregarla:
sudo dnf groupinstall "Server with GUI"
Luego, puedes habilitar la GUI para que se inicie al arrancar:
sudo systemctl set-default graphical.target
Consideraciones Adicionales:
Firewall: Asegúrate de configurar el firewall para permitir el tráfico a los servicios que estás ejecutando (puedes usar firewalld).
Seguridad: Configura cortafuegos, actualiza los paquetes y considera implementar autenticación segura.
Documentación: Cada servicio tiene su propia documentación oficial, la cual es muy útil para configuraciones avanzadas.
Resumen de Comandos Básicos:
Aquí tienes un resumen de los comandos que necesitarás ejecutar para instalar y habilitar los servicios mencionados.
sudo dnf install httpd postfix dovecot mysql-server zabbix-server zabbix-web zabbix-agent openvpn vsftpd
sudo systemctl start httpd
sudo systemctl enable httpd
sudo systemctl start postfix
sudo systemctl enable postfix
sudo systemctl start dovecot
sudo systemctl enable dovecot
sudo systemctl start mysqld
sudo systemctl enable mysqld
sudo systemctl start zabbix-server
sudo systemctl enable zabbix-server
sudo systemctl start openvpn
sudo systemctl enable openvpn
sudo systemctl start vsftpd
sudo systemctl enable vsftpd
Espero que esta guía te sea útil. Si tienes más preguntas sobre alguna parte específica, ¡no dudes en preguntar!
Mucha suerte con tu proyecto. Aquí estamos para orientarte, si es necesario.
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Red Hat Enterprise Linux 9 Administration
Pablo Iranzo Gómez, Pedro Ibáñez Requena, Miguel Pérez Colino, Scott McCarty
Packt Publishing
2022
Red Hat Enterprise Linux 8 Administration: Master Linux administration skills and prepare for the RHCSA certification exam
Miguel Pérez Colino, Pablo Iranzo Gómez, Scott McCarty
Packt Publishing
2021