Cyber Security, DevOps, DevSecOps and Technology
Emacs, the extensible text editor that has been a cornerstone of the developer and programmer community for decades, is renowned for its flexibility and customization. Among its vast array of features and plugins, one stands out for its unparalleled ability to streamline tasks, manage information, and boost productivity – Org Mode.
Are you a Linux user looking to level up your productivity and take control of your text editing and coding tasks? Look no further than Emacs, a powerful and extensible text editor that has been a staple in the world of programming and system administration for decades.
As DevOps practitioners, we’re always on the lookout for new tools that can help us streamline our workflows and improve our processes. One such tool that we’ve recently been exploring is Rundeck, an open-source automation platform that can help us manage and execute our jobs and tasks more efficiently.
Containerization has revolutionized the way software is developed, tested, and deployed. While Docker has been a popular choice for containerization, Podman has emerged as a viable alternative, especially for users who prefer a rootless, daemonless, and more secure container experience. In this blog post, we will explore how to build Debian-based container images using Podman while integrating systemd inside them. This allows you to run services and manage them using systemd, just like you would on a traditional server.
Docker has revolutionized the way we build, ship, and run applications by containerizing them. One critical component of a well-managed container ecosystem is a Docker registry. While Docker Hub is a popular choice for hosting container images, there are compelling reasons to set up an in-house Docker registry. In this guide, we will walk you through the steps to configure and host your own Docker registry, ensuring control, security, and efficiency in your containerized environment.
Using SSH jump hosts (also known as bastion hosts or SSH gateways) with Ansible allows you to securely access and manage servers in a remote network or behind a firewall. Jump hosts act as intermediaries, forwarding your SSH connection to the target hosts. You can configure Ansible to use jump hosts for managing remote servers. Here’s how to set it up:
In the realm of networking, the Dynamic Host Configuration Protocol (DHCP) plays a pivotal role in effortlessly connecting devices to a network. Whether in homes, businesses, or large-scale enterprises, DHCP efficiently assigns IP addresses and network configurations, enabling seamless communication between devices. In this blog post, we will unravel the intricacies of DHCP and shed light on how it works behind the scenes, empowering you with a deeper understanding of this fundamental networking protocol.
In the dynamic world of containerization and orchestration, developers and IT professionals continually seek tools that streamline the deployment and management of containerized applications. While Docker Compose has long been the go-to solution for orchestrating containers, its dependency on the Docker daemon can be limiting in certain environments. Enter Podman-Compose, a powerful alternative that offers greater flexibility and security while maintaining compatibility with Docker Compose syntax. In this blog post, we’ll look into Podman-Compose, exploring its key features and demonstrating how it can simplify your container orchestration tasks.
Testing Ansible roles is a crucial step in ensuring the reliability and correctness of your infrastructure automation. Among the various tools available for this purpose, Molecule stands out as a versatile framework for testing Ansible roles. When coupled with Podman, a containerization tool similar to Docker, it provides a seamless and efficient environment for testing Ansible roles on Debian Linux. In this blog post, we will explore the process of setting up Molecule with Podman on Debian Linux.
Terraform, developed by HashiCorp, is a powerful Infrastructure as Code (IaC) tool that allows you to define and provision infrastructure resources in a declarative and automated manner. It is an essential tool for managing cloud infrastructure efficiently. If you’re using Debian Linux, one of the easiest and recommended ways to install Terraform is by using the official Apt repository provided by HashiCorp. This post will guide you through the step-by-step process of installing Terraform on Debian Linux.
SSH tunneling is a method for securely transmitting network traffic between two devices, typically a local machine (client) and a remote server, using the Secure Shell (SSH) protocol. It creates an encrypted communication channel over an untrusted network, such as the internet, to protect the data being transmitted. SSH tunneling can be used for various purposes, including forwarding ports, accessing remote resources, and enhancing security.
Ansible, a powerful open-source automation tool, simplifies the management of infrastructure, applications, and data across your IT environment. At the heart of Ansible’s magic lies SSH (Secure Shell) – the trusted protocol for secure remote access. Configuring SSH connections in Ansible is a fundamental step in reaching its capabilities for server provisioning, configuration management, and application deployment. In this guide, we will walk you through the process of setting up SSH connections in Ansible to help you automate your infrastructure efficiently and securely.
In the rapidly evolving landscape of cybersecurity, businesses face constant threats from malicious actors seeking to exploit vulnerabilities and compromise sensitive information. To counter these threats, organizations employ various strategies, one of which involves employing Red Teams and conducting periodic penetration tests. In this blog post, we will delve into the concept of Red Teams, their responsibilities, and the critical role of periodical penetration tests in safeguarding online businesses.
Tom's IT Cafe 