Recently, I encountered a strange problem when executing the binary file protoc, which resulted in the error “no such file or directory: ./protoc”. The file was clearly there, but the error persisted, making me wonder if there was a bug…
If you’ve ever wondered how to handle multiple values in Ansible — like a group of servers, packages, or users — that’s where lists come in. Lists let you store several items under one variable and use them in loops,…
In Ansible, you can check if an element is present in a list using the in keyword in a playbook or in a Jinja2 template. Here’s an example of how you can use the in keyword to check if an…
In the world of Linux system administration, the ability to manage and troubleshoot network interfaces is a fundamental skill. There are situations where you might encounter connectivity issues, need to apply configuration changes, or simply want to reset a network…
Core dumps are binary files that contain the memory image of a crashed process, which can be invaluable for debugging purposes. To collect a core dump file in Linux, you need to configure your system to generate core dumps when…
Microsoft’s Email Breach: Implications for Cloud Security On July 11, Microsoft disclosed that a Chinese hacking group known as Storm-0558 gained unauthorized access to the email systems of various US government agencies, potentially compromising a significant number of emails. Recent…
Ansible is a powerful and flexible automation tool, capable of handling many complex tasks, including modifying files. Three of the key modules that Ansible provides for file modification are lineinfile, replace, and blockinfile. The lineinfile module – add,…
In the realm of IT automation, Ansible has emerged as a powerful tool for streamlining various administrative tasks. Among these tasks, user management stands out as a common and often repetitive process. Ansible provides two primary approaches for creating users:…
In AWS EC2 (Elastic Compute Cloud), user data refers to the information or scripts that you can provide to an EC2 instance during its launch. User data can be used to automate instance configuration and perform various tasks on the…
Create a file with Ansible file module There are a few ways to create a file with Ansible. One way is to use the file module. The file module has a state option that can be set to touch to…
