security

🚀 Announcing “Red Hat Enterprise Linux 9 for SysAdmins” Buy on Amazon Buy on BPB I’m excited to announce the release of “Red Hat Enterprise Linux 9 for SysAdmins”, co-authored with Jerome Gotangco!

SELinux (Security-Enhanced Linux) is a vital security feature in RHEL 8 that enforces mandatory access control (MAC).

Introduction A Custom Resource Definition (CRD) in Kubernetes allows you to extend the Kubernetes API by defining your own custom resources.

The ansible.cfg file is a crucial component in the Ansible ecosystem, providing a centralized configuration point to customize the behavior of Ansible.

Error Overview When running an Ansible playbook, you may encounter the following error message:

Introduction In the rapidly evolving world of container orchestration, Kubernetes has established itself as a front-runner, offering unparalleled flexibility, scalability, and management features.

Introduction The recent Technology Preview of the containerized Red Hat Ansible Automation Platform has sparked considerable excitement within the tech community.

🔒 Unlock the secrets of secure automation with the “Ansible Vault Unveiled”!

How to Change a User Password with Ansible Welcome to another episode of Ansible Pilot!

Introduction The Cloud Native Computing Foundation (CNCF) is set to host its flagship conference, KubeCon + CloudNativeCon, in the picturesque city of Paris, France, from March 19 to 22, 2024.

Introduction In the world of IT automation and configuration management, security is paramount.

Introduction Ansible-Lint is a powerful tool that helps Ansible users identify and correct issues in their playbooks and roles.

Introduction Ansible is a powerful open-source automation tool used for configuration management, application deployment, and task automation.

Pluralsight The IT Ops Labs: Maintain, Monitor, and Troubleshoot Kubernetes Title: The IT Ops Labs: Maintain, Monitor, and Troubleshoot Kubernetes

Introduction As organizations increasingly prioritize cybersecurity and compliance, the need for robust security measures has become paramount.

CIS Benchmark In today’s cybersecurity landscape, hardening your systems is crucial to protect against evolving threats.

How to verify an Ansible project signature? A step to step guide to verify the signature using the ansible-sign of a GPG-signed Ansible project.

How to sign an Ansible project? From a non-signed to a GPG-signed Ansible project.

Title: The IT Ops Sessions: Using Ansible Sign and Verify

How to decrypt an Ansible Vault? From an encrypted file to plaintext using the correct password.

How to use an Ansible Vault in an Ansible Playbook? How to use an Ansible Vault to Protect Sensitive Data such as passwords, access keys, etc.

Ansible terminology - What is an Ansible Vault? How to store variables and files in an encrypted way using the ansible-vault command line utility.

What is Polkit Privilege Escalation - (CVE-2021–4034)? “A memory corruption vulnerability in Polkit’s pkexec, witch allows any unprivileged user to gain full root privilege on a vulnerable system using default polkit configuration” cit.

How to Configure Kernel Parameters in RedHat-like Linux systems with Ansible using system role?

My Ansible Playbook code was officially included in the Red Hat Security Bulletin RHSB-2021-009 Log4Shell - Remote Code Execution - log4j (CVE-2021-44228).