A list of useful commands to manage linux services with systemctl. Service file configuration example Basic example of a systemd … More systemctl: Linux services cheatsheet
systemctl: Linux services cheatsheet
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How to extend root Filesystem using LVM in CentOS 7 / RHEL 7
Filesystem / is 100% full In this example we have the root Filesystem 100% full, it’s possible to expand the … More How to extend root Filesystem using LVM in CentOS 7 / RHEL 7
How to install Foreman & Katello (Satellite free version) on CentOS 7
Introduction With Katello & Foreman, you can install and configure the open source version of Red Hat Satellite, to manage … More How to install Foreman & Katello (Satellite free version) on CentOS 7
Change the default Keyboard input Language in Linux
First of all, check your current keyboard language configuration (in this example the current configuration is ES, Spanish) : With … More Change the default Keyboard input Language in Linux
Best way to distribute users’s Public ssh Key to many hosts (no prompt password)
Lab information For this lab, we will distribute the ssh public key of our main server, Ansible Master to two … More Best way to distribute users’s Public ssh Key to many hosts (no prompt password)
Configure SSH trust relationship
To configure a SSH trust relationship providing authentication via RSA public keys is necessary to follow the next steps: Generate … More Configure SSH trust relationship
Ansible: Privilege escalation more secure using Ansible-Vault
– INTRODUCTION Sometimes it’s necessary to execute the tasks of the Playbook with root user in the remote servers. To … More Ansible: Privilege escalation more secure using Ansible-Vault
Saber cuanta memoria RAM tengo en Linux
Comando para mostrar la memoria RAM Con el comando free mostramos información de la memoria RAM de nuestra máquina linux, … More Saber cuanta memoria RAM tengo en Linux
Filesystem especial /proc
Filesystem especial /proc Es un pseudo sistema de ficheros que se utiliza para permitir el acceso a la información del … More Filesystem especial /proc
Ampliar Swap en Linux
Con LVM: 1. Comprobar espacio libre en el Volume Group: vgdisplay 2. Crear una partición para swap de 15G: lvcreate … More Ampliar Swap en Linux