Posts

Showing posts with the label Linux

Install Docker on Debian 12 (Bookworm)

Image
How to Install Docker on Debian Docker is a popular platform for developing, shipping, and running applications inside containers. This guide will show you how to install Docker on a Debian-based system. Step 1: Update the Package Index and Install Necessary Packages sudo apt-get update sudo apt-get install \ ca-certificates \ curl \ gnupg \ lsb-release Step 2: Add Docker’s Official GPG Key sudo mkdir -p /etc/apt/keyrings curl -fsSL https://download.docker.com/linux/debian/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg Step 3: Set Up the Docker Repository echo \ "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/debian \ $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null Step 4: Update the Package Index Again sudo apt-get update Step 5: Install Docker Engine, containerd, an...
Post a Comment
Location: Auckland, New Zealand
Read more

Managing Multiple SSH Keys for Different Machines

Managing Multiple SSH Keys for Different Machines In today's interconnected world, it's common to access multiple remote machines via SSH. However, managing different SSH keys for various machines can be a bit challenging. This blog post will guide you through the process of generating and adding multiple SSH keys on a single computer, making your workflow seamless and efficient. Step 1: Generate SSH Keys To start, we'll generate a unique SSH key for each machine. Open your terminal and use the ssh-keygen command: ssh-keygen -t rsa -b 4096 -C "your_email@example.com" -f ~/.ssh/id_rsa_machine1 ssh-keygen -t rsa -b 4096 -C "your_email@example.com" -f ~/.ssh/id_rsa_machine2 Replace machine1 and machine2 with appropriate identifiers for your machines. Step 2: Add SSH Keys to the SSH Agent Next, we need to add these keys to the SSH agent, which manages your SSH keys ...
Post a Comment
Location: Auckland, New Zealand
Read more

Setting up Jupyter Lab integrated with Python, Julia, R on Windows Subsystem for Linux (Ubuntu)

Image
Every guy gotta favourite OS. But, due to some constraints, all can't use that all the time. Being a Linux user, I had to shift to Windows 10 because of the barrier by MS Office and Dual booting often doesn't work. A few weeks before I learned about Windows Subsystem for Linux and my experience was great. If you are Linux pro stuck in Windows, this could be a relief. Basically, you can run a well-designed minimal version of Ubuntu inside Windows 10. In this article, we will get familiar with, Activation of Windows Subsystem for Linux. Installation of Ubuntu (no GUI) using Microsoft App Store. Configuring Python3, Pip3 and Jupyter Lab. Installation of R in Ubuntu and integration of R with Jupyter Lab. Installation of Julia in Ubuntu along with Jupyter Lab integration. Accessing Windows files with Ubuntu. Installation of Windows Subsystem for Linux Windows don't ship with WSL by default, we need to install it via PowerShell.  Reference -  https://docs.microsoft.co...
Post a Comment
Read more

How to configure Static IP for Raspberry Pi 3

Image
A raspberry pi is often accessed via SSH or VNC viewer. Attaching the set of Monitor, Keyboard and Mouse to Raspberry Pi is not always recommended. For accessing Raspberry Pi from a remote device we need to provide the following, 1. Username - Pi (by default) 2. Hostname or IP 3. Password configured for the user 'Pi' 4. Enabling SSH,VNC ports in Pi configuration If multiple devices are plugged into your network, there is a high probability for IP shifts. To avoid this it is often suggested getting a static IP for Raspberry Pi. Please follow following steps for enabling a static IP to your Raspberry Pi. 1. Login to the Raspberry Pi via SSH, From router's admin page(192.168.1.1) you will get the IPs of connected devices. Connect to the Raspberry Pi via SSH. For Example, My Pi's IP was 192.168.1.3 2. Modify /etc/dhcpcd.conf and add your desired IP, In my case, static IP I was preferring is 192.168.1.9. Add the following lines to the dhcpcd.conf fi...
Post a Comment
Location: Kerala, India
Read more

How to root, flash twrp, unlock bootloader and install custom ROM via Linux

People often find difficulties in downloading and installing usb driver for their phone on Windows operating system. But if you are using Linux operating system then things are much simpler for you. This is a generic flow of customizing your android device. Advantages of using Ubuntu or any Linux distribution for rooting are, You don't need usb driver specific to your phone.  Linux generic driver supports all android devices. ​ADB and fastboot are readily available in Ubuntu's inventory. You could simply install those. Follow below steps for rooting or install custom ROM, Intsall ADB and fastboot in Linux Open a Terminal and install tools from your Linux repo, For Debian/Ubuntu users, sudo apt install android-tools-adb android-tools-fastboot  For Fedora/SUSE users, sudo yum install android-tools Download TWRP image and SuperSu zip TWRP - This opensource project allows us to install custom ROMs safely. Installing TWRP will enable option to root your d...
1 comment
Read more

Popular posts from this blog

Flux vs Argo CD in GitOps

Flux vs Argo CD in GitOps: Which One is Right for You? In the context of GitOps , both Flux and Argo CD are popular tools for continuous deployment (CD) automation. They manage Kubernetes applications using Git as the source of truth. While both are great options, they differ in several aspects, from architecture to feature sets. In this post, we’ll compare Flux and Argo CD to help you decide which is the right tool for your Kubernetes environment. 1. Architecture Flux: Flux is a pull-based system that continuously reconciles the state of the cluster with the state in Git. It watches your Git repositories and automatically updates Kubernetes resources when it detects changes. Flux is lightweight and integrates with the CNCF ecosystem. It also supports Kustomize and Helm natively. Argo CD: Argo CD is also a pull-based tool but provides a declarative user interface for visual feedback on application status, health, and syncing. Ar...
Read more

Understanding Swagger and OpenAPI Specifications

Understanding Swagger and OpenAPI Specifications In modern API development, Swagger and OpenAPI have become the go-to tools for designing, documenting, and interacting with RESTful APIs. Let’s break down these essential tools and how they simplify API development. What is OpenAPI? The OpenAPI Specification (OAS) is a standard format to describe REST APIs. Initially known as the Swagger Specification, it was created by Swagger, then donated to the OpenAPI Initiative in 2015. Today, OpenAPI has become the industry standard for describing APIs, making it easier for developers to understand and work with APIs across various platforms. An OpenAPI document provides a structured description of the entire API, including: Endpoints and available operations Input parameters and output formats Authentication methods Error messages and responses Here’s a quick example of an OpenAPI specification snippet in JSON: { ...
Read more

Install Docker on Debian 12 (Bookworm)

Image
How to Install Docker on Debian Docker is a popular platform for developing, shipping, and running applications inside containers. This guide will show you how to install Docker on a Debian-based system. Step 1: Update the Package Index and Install Necessary Packages sudo apt-get update sudo apt-get install \ ca-certificates \ curl \ gnupg \ lsb-release Step 2: Add Docker’s Official GPG Key sudo mkdir -p /etc/apt/keyrings curl -fsSL https://download.docker.com/linux/debian/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg Step 3: Set Up the Docker Repository echo \ "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/debian \ $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null Step 4: Update the Package Index Again sudo apt-get update Step 5: Install Docker Engine, containerd, an...
Read more

Adding Multiple SSH Keys to Your Raspberry Pi

Adding Multiple SSH Keys to Your Raspberry Pi If you're a Raspberry Pi enthusiast, you know the importance of secure access to your device. Using SSH keys is a secure and convenient way to manage remote access. In this guide, I'll show you how to add multiple SSH keys to your Raspberry Pi, allowing different users or machines to connect securely. Step 1: Generate SSH Keys First, you need to generate SSH keys on each client machine that will access your Raspberry Pi. Open a terminal on your client machine and run the following command: ssh-keygen -t rsa -b 4096 -C "your_email@example.com" Follow the prompts to save the key in the default location ( ~/.ssh/id_rsa ) and optionally add a passphrase for extra security. Step 2: Copy SSH Keys to Raspberry Pi Next, you need to copy the SSH key to your Raspberry Pi. The easiest way to do this is by using the ssh-copy-id command. Replace pi@raspberrypi with your...
Read more

Managing Multiple SSH Keys for Different Machines

Managing Multiple SSH Keys for Different Machines In today's interconnected world, it's common to access multiple remote machines via SSH. However, managing different SSH keys for various machines can be a bit challenging. This blog post will guide you through the process of generating and adding multiple SSH keys on a single computer, making your workflow seamless and efficient. Step 1: Generate SSH Keys To start, we'll generate a unique SSH key for each machine. Open your terminal and use the ssh-keygen command: ssh-keygen -t rsa -b 4096 -C "your_email@example.com" -f ~/.ssh/id_rsa_machine1 ssh-keygen -t rsa -b 4096 -C "your_email@example.com" -f ~/.ssh/id_rsa_machine2 Replace machine1 and machine2 with appropriate identifiers for your machines. Step 2: Add SSH Keys to the SSH Agent Next, we need to add these keys to the SSH agent, which manages your SSH keys ...
Read more