http://arkit.co.in

[aravikumar48]

Corrupted Grub Recovery in Linux | Tech Arkit | Troubleshooting

[aravikumar48]

Init vs SystemD Linux | DevOps | Interview | Tech Arkit

What is the difference between Init (SysVinit) and SystemD in Linux. #init #systemd #sysvinit #server #linuxserver #linuxadministrator #techarkit

Boot Process: When the computer boots up, the system BIOS or UEFI firmware hands control over to the bootloader (such as GRUB). The bootloader then loads the Linux kernel into memory and passes control to it.

Kernel Initialization: The Linux kernel initializes hardware, mounts the root filesystem, and starts the init process.

init Process: The init process is the first process started by the kernel and has process ID 1. It's responsible for initializing the system and managing system services.

Runlevels: SysVinit organizes the system startup and shutdown process into runlevels. A runlevel defines a state of the system, indicating which services should be started or stopped. Common runlevels include single-user mode, multi-user mode, and graphical mode. Each runlevel has associated initialization scripts that start or stop services.

Initialization Scripts: The initialization scripts, located in directories like /etc/init.d, are shell scripts responsible for starting, stopping, and managing individual services. These scripts are executed sequentially during system startup and shutdown, following the instructions defined for each runlevel.

Dependency Handling: SysVinit relies on a simple dependency system, where services are started in a predefined order based on their dependencies. However, managing complex interdependencies between services can be challenging with SysVinit.

Manual Service Management: In SysVinit, administrators often manually manage services using commands like service or chkconfig, which interact with the initialization scripts to start, stop, enable, or disable services.

[aravikumar48]

Node Port vs Cluster IP Kubernetes | DevOps | Interview | Tech Arkit

NodePort: NodePort is a type of service that exposes a service on a specific port of each node in the cluster. When you expose a service using NodePort, Kubernetes will allocate a specific port on every node in the cluster (usually in the range 30000-32767) and any traffic sent to this port will be forwarded to the corresponding service. NodePort is typically used when you need to access a service from outside the Kubernetes cluster, for example, to expose a web application to the internet. ClusterIP: ClusterIP is a type of service that exposes a service on an internal IP address that is only reachable from within the Kubernetes cluster. This is the default type of service in Kubernetes. ClusterIP is used for communication between services within the cluster.

[aravikumar48]

Kubernetes Deployment Explained | Tech Arkit Deployment is a resource object used to manage the deployment and scaling of applications. It provides declarative updates to applications, ensuring that a specified number of pod replicas are running at any given time. Deployments are essential for managing the lifecycle of applications in a Kubernetes cluster, enabling features such as rolling updates, rollback to previous versions, and scaling.

[aravikumar48]

PODs in Kubernetes Explained | Tech Arkit

In Kubernetes, a pod is the smallest and simplest unit in the deployment model. It represents a single instance of a running process in a cluster and is the basic building block for deploying and managing containerized applications. A pod encapsulates one or more containers, storage resources, a unique network IP, and configuration options. The primary purpose of using pods is to provide a logical and cohesive unit for application deployment and scaling.

[aravikumar48]

Production Kubernetes Cluster Setup | kubeadm cluster | Tech Arkit Production Kubernetes cluster installation and configuration step by step guide. #kubernetes #kubeadm #kubelet #kubectl #techarkit

[aravikumar48]

Types of Bond Interfaces in Linux | Tech Arkit

Follow Us on Social Media WhatsApp Group: https://bit.ly/TechArkitWhatsAppGroup Join Telegram Group: http://t.me/linuxarkit 3000 Members Joined GitHub: https://github.com/techarkit/ FB Private Group: 5K members https://www.facebook.com/groups/arkitcoin Facebook: https://www.facebook.com/linuxarkit Twitter: https://twitter.com/aravikumar48 Instagram: https://www.instagram.com/arkit.co.in/ Website: https://arkit.co.in Blog: https://techarkit.blogspot.com/ Reddit: https://www.reddit.com/r/techtutorial/ Email: aravikumar48[at]gmail.com Quora: https://www.quora.com/q/cxfarqipmxzajyne?invite_code=eaA2xM8guZ4pBOcQwzbs

Post your topic, we will make videos for you https://forms.gle/M4ysoMNh1zsPXiw89

[aravikumar48]

Git and GitHub Full Course | Tech Arkit

Welcome to TechArkIT! In this video, we are going to delve deep into the world of version control with a comprehensive exploration of Git. Whether you're a beginner looking to grasp the fundamentals or an experienced developer seeking a refresher, this video has something for everyone. So, let's embark on this journey to demystify Git.

Table of Contents: Introduction to Version Control

What is version control? The importance of version control in software development. Git: A Brief Overview

History and development of Git. Key features that set Git apart. Installing Git

Step-by-step guide to installing Git on different operating systems. Configuring Git for the first time. Git Basics

Creating a Git repository. Understanding the working directory, staging area, and repository. The Git lifecycle: adding, committing, and pushing changes. Branching and Merging

The concept of branches in Git. Creating and switching branches. Merging branches to consolidate changes. Dealing with merge conflicts. Remote Repositories

Introduction to remote repositories. Cloning a remote repository. Pushing and pulling changes from remote repositories. Collaboration with Git

Collaborative workflows using Git. Handling contributions from multiple developers. Code reviews and pull requests. Advanced Git Concepts

Rebasing and its advantages. Cherry-picking commits. Git hooks and customizing Git's behavior. Git Best Practices

Guidelines for effective version control. Commit message conventions. Keeping your Git history clean and organized. Git Hosting Platforms

Popular Git hosting platforms like GitHub, GitLab, and Bitbucket. Setting up your repository on these platforms. Git GUI and IDE Integration

Overview of Git GUI tools. Integrating Git into popular Integrated Development Environments (IDEs). Troubleshooting Git Issues

Common Git problems and their solutions. Debugging techniques for Git.

By the end of this video, you'll have a solid understanding of Git, its core concepts, and how to use it effectively in your software development projects. Whether you're working on personal coding projects, collaborating with a team, or just curious about version control, this knowledge will empower you.

[aravikumar48]

From Linux to AWS - A Comprehensive Guide for Cloud Practitioners TechArkit.  

 Transitioning from a Linux-based environment to Amazon Web Services (AWS) involves learning new tools, services, and concepts specific to the cloud. Here is the video which covers required services in depth.

[aravikumar48]

Lambda Lab | Start and Stop EC2 Instances using Lambda Function | Tech A...

[aravikumar48]

AWS Lab EC2 and EBS Volumes

Problem Statement: You work for Arkit Solutions Pvt Ltd. Your Company c wants to launch a new web-based application using AWS Virtual Machines, and configure the resources accordingly with appropriate storage for the tasks. You are asked to perform the following tasks: 1. Launch a Linux EC2 instance. 2. Create an EBS volume with 20 GB of storage and attach it to the created EC2 instance. 3. Resize the attached volume and make sure it reflects in the connected instance.

🔬 Welcome to AWS Labs - Your Gateway to Cloud Innovation! 🔬

Discover the forefront of cloud computing and technological excellence at AWS Labs. Step into a realm of groundbreaking solutions and cutting-edge experiments, where our team of experts constantly pushes the boundaries of what's possible in the cloud.

🚀 Unleash Your Potential: AWS Labs is the playground where innovation thrives. Our trailblazing researchers and engineers work tirelessly to create new services, enhance existing ones, and bring out the full potential of AWS. Witness first-hand the power of cloud technologies that empower businesses to soar to new heights.

💡 Expanding Horizons: Stay ahead in a rapidly evolving digital landscape with our hands-on experiments and insightful demonstrations. We explore emerging trends, from AI and machine learning to IoT and beyond, equipping you with knowledge to harness these technologies for your own ventures.

🔍 Dive into the Details: From comprehensive tutorials to in-depth technical deep dives, AWS Labs offers a wealth of knowledge to satisfy your curiosity. Our thorough exploration of AWS services and features ensures you have the expertise to leverage the full capabilities of the cloud.

🎓 Learn from the Best: Learn alongside industry-leading experts who are passionate about sharing their knowledge. Our engaging and interactive content makes even the most complex concepts easily understandable, catering to beginners and experienced professionals alike.

📈 Ignite Your Success: Whether you're a seasoned cloud architect or just starting your cloud journey, AWS Labs equips you with the tools and skills you need to thrive in the cloud ecosystem. From startups to enterprises, our resources will drive your business forward.

🌟 Join the AWS Labs Community: Become a part of our vibrant community of cloud enthusiasts. Share ideas, collaborate on projects, and learn from like-minded individuals who share a passion for innovation.

💻 Embrace the Future: As the forefront of cloud technology continues to evolve, so does AWS Labs. Our commitment to pushing boundaries ensures you stay up-to-date with the latest advancements and embrace the future with confidence.

📺 So, what are you waiting for? Subscribe to AWS Labs now and embark on an exhilarating journey into the world of AWS and cloud computing. Prepare to be amazed as we unlock the potential of tomorrow's technology, today. Let's build a better, more connected world together. Welcome to AWS Labs! 🌐

[aravikumar48]

Multi Availability Zone Auto Scaling Group Deployment with ALB | Tech Arkit

[aravikumar48]

Python Comparison Operators | Non-Programmers | Tech Arkit

## Equality (==): Checks if two values are equal.

## Strings are case sensitive Ravi == Ravi (True) however Ravi == ravi (False). x = 5 y = 7 print(x == y)  # False

name1 = "Ravi" name2 = "Ravi" print(name1 == name2)  # True

## Inequality (!=): Checks if two values are not equal. a = 10 b = 15 print(a != b)  # True

age1 = 25 age2 = 30 print(age1 != age2)  # True

## Greater than (>): Checks if the left operand is greater than the right operand. m = 5 n = 3 print(m > n)  # True

score1 = 85 score2 = 90 print(score1 > score2)  # False

## Less than (<): Checks if the left operand is less than the right operand. p = 7 q = 10 print(p < q)  # True

temperature1 = 25 temperature2 = 30 print(temperature1 < temperature2)  # True

## Greater than or equal to (>=): Checks if the left operand is greater than or equal to the right operand. c = 5 d = 5 print(c >= d)  # True

marks1 = 80 marks2 = 90 print(marks1 >= marks2)  # False

### Less than or equal to (<=): Checks if the left operand is less than or equal to the right operand. e = 10 f = 15 print(e <= f)  # True

quantity1 = 5 quantity2 = 5 print(quantity1 <= quantity2)  # True

[aravikumar48]

Python for Non-Programming Background Video 1 | Tech Arkit

[aravikumar48]

Viral Linux Interview Questions and Answers | Tech Arkit

* What is SSH-tunnel ? * How to set history size ? * How to extend VG ? * What are logical & extended partitions ? * Explain the steps to reset root password at boot time ?* What are run-levels ? How many types of run levels are there ? * How we change the run level ? * How to check the logs ? * Difference between Journalctl & tail command ? * What does the subscription -manager do ? * How to archive a file ? * What is umask ? * How to kill a process ? * How to assign IP address manually ? * How to assign static IP address to a system ? * Explain the different type s of Linux process states ? * What is a Zombie process ? * What is KVM ? * What is hypervisor ? * Difference between MBR & GPT ? * How you can mount a file system permanently ? * What is cron ? How to setup a cron job ? * What is Kickstart ? * How to create a network bridge in Linux ? * Difference between iptables & firewalld * What is SElinux ? * What is ISCSI & targetcli ? * Difference between NFS & SAMBA ? * What is nfsnobody ? * What is SSHFS ? * What is Kerberos ? * How to secure NFS with Kerberos ? * What is the difference between telnet & SSH ? * What is DHCP ? * What is Kickstart file ? * What is NTP Server ? How to configure NTP ?

[aravikumar48]

Viral - Linux Interview Questions and Answers | Tech Arkit

* Command to check Disk usage ? * Difference between ps -aux & top command ? * What are the ways to check CPU usage ? * How to check CPU details ? * Explain the steps to create a partition & how to format with file system ? * Explain the steps to create LV ? * Explain steps to reduce XFS & EXT files systems ? * Significance of .bashrc file ? * How you check the kernel version ? * How you check the Red hat release version ? * Significance of resolv.conf file ? * What is DNS ? How you resolve DNS ? Types of DNS records ? * Difference between Nginx & HTTP Server ? * Port no of HTTP, FTP, SSH, HTTPS ? * What is SSH ? How you generate SSH-keys ? * What is Private & public key ? How they authenticate ? * What is the default configuration file of SSH ? * What is the default configuration file of HTTP ? * What is Virtual Hosting ? How you configure virtual hosting ? * Explain ifconfig command ? * Difference between IPv4 & IPv6 ? * What is MAC address ? can we change the physical address ? * How to check system uptime ? * How to check memory information ? * What is SWAP ? * What is the exact memory free in your system ? * What is cache memory ? * What if you can do rm -rvf / ? * Kinds of permission in Linux ? * What is vim & vi ? * What is pipe | ? * What is grep command ? * What Find command does ? * How to redirect commands output ? * What is systemd in Linux ? * What does systemctl do ? * If you run a command like nautilus in terminal, whether it will block your terminal or not ? * What is rsyslog ?

[aravikumar48]

Top 22 Real-Time DevOps Interview Questions and Answers | Tech Arkit