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Rakesh Jain Profile picture
@devops_tech
Sep 13, 2021 • 14 tweets • 21 min read • Read on X
List of all my Linux Series Articles.

A thread.

#DevOps #cloud #Automation #Linux #Ubuntu #CentOS
1. Why Linux?

#DevOps #cloud #Automation #Linux #Ubuntu #CentOS

blog.learncodeonline.in/why-linux
2. Automating Linux Installation using Vagrant and VirtualBox

#DevOps #cloud #Automation #Linux #Ubuntu #CentOS

blog.learncodeonline.in/automating-lin…
3. Linux Directory Structure Explained!

#DevOps #cloud #Automation #Linux #Ubuntu #CentOS

blog.learncodeonline.in/linux-director…
4. Linux Access Management: Beginner to Advanced

#DevOps #cloud #Automation #Linux #Ubuntu #CentOS

blog.learncodeonline.in/linux-access-m…
5. Understanding Linux File Systems - EXT4, XFS, BTRFS

#DevOps #cloud #Automation #Linux #Ubuntu #CentOS

blog.learncodeonline.in/understanding-…
6. A complete guide to Manage Users and Groups on Linux!

#DevOps #cloud #Automation #Linux #Ubuntu #CentOS

blog.learncodeonline.in/a-complete-gui…
7. Repository and Package Management on Linux

#DevOps #cloud #Automation #Linux #Ubuntu #CentOS

blog.learncodeonline.in/repository-and…
8. Networking in Linux

#DevOps #cloud #Automation #Linux #Ubuntu #CentOS

blog.learncodeonline.in/networking-in-…
9. Linux Advanced - Environment Variables in Linux

#DevOps #cloud #Automation #Linux #Ubuntu #CentOS

blog.learncodeonline.in/linux-advanced…
10. Linux Advanced - Input Output Redirection and Piping

#DevOps #cloud #Automation #Linux #Ubuntu #CentOS

blog.learncodeonline.in/linux-advanced…
11. Linux Advanced - Process Management

#DevOps #cloud #Automation #Linux #Ubuntu #CentOS

blog.learncodeonline.in/linux-advanced…
12. Linux Advanced - Job Scheduling

#DevOps #cloud #Automation #Linux #Ubuntu #CentOS

blog.learncodeonline.in/linux-advanced…
13. Linux Advanced - How to SECURE your Linux Server!

#DevOps #cloud #Automation #Linux #Ubuntu #CentOS #security

blog.learncodeonline.in/linux-advanced…

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More from @devops_tech

Rakesh Jain Profile picture
Dec 6, 2024
🐧 Linux Networking Commands: 10 Daily-Used Examples (Thread) 🧵 Image
1/ ifconfig (Deprecated: Use ip):
Check & configure network interfaces.

ifconfig eth0 up # Enable interface
ifconfig eth0 down # Disable interface

Use ip instead:
ip addr show eth0
ip link set eth0 up

#LinuxNetworking #SysAdmin
2/ ip (Modern Network Management):
Powerful alternative to ifconfig.

ip a # Show IP addresses
ip route # Display routing table
ip link set eth0 up # Enable interface
Read 13 tweets
Rakesh Jain Profile picture
Nov 21, 2024
Platform Engineer vs. SRE vs. DevOps Engineer!

A Thread 🧵
1/ What’s the difference? 🤔
All these roles focus on improving software delivery and reliability but have different goals. Here’s a quick breakdown:
2/ Platform Engineer 👷
👉 Goal: Make life easier for developers.
• Build tools & platforms (e.g. CI/CD pipelines, Kubernetes)
• Standardize workflows for efficiency
• Create self-service systems so developers can work faster

🛠️ They focus on improving developer productivity.
Read 9 tweets
Rakesh Jain Profile picture
Sep 12, 2024
AWS service limitations to keep in mind!

A List of critical #AWS services and their limitations 👇 Image
1. EC2 – Instance limits by region, instance type restrictions.
2. RDS – Max database storage limits, instance size restrictions.
3. S3 – Max object size is 5TB, bucket policies can limit access.
4. EBS – Volume size max of 64TB, 20,000 IOPS for io1/io2 volumes.
5. IAM – Max 5,000 roles per account, policy size limits.
6. Lambda – Max execution timeout of 15 minutes, memory max 10GB.
7. DynamoDB – Partition throughput limits, item size max of 400KB.
8. CloudFormation – 200 resources limit per stack.
Read 13 tweets
Rakesh Jain Profile picture
Sep 9, 2024
Mastering Ansible command line!

A Thread of 10 key #Ansible commands and concepts all #DevOps and #Linux Administrators should focus on 👇👇 Image
1️⃣ Check Ansible Version

Command:
ansible --version

Explanation:
Verify your Ansible installation and check version details.
2️⃣ Ping All Hosts

Command:
ansible all -m ping

Explanation:
Ping all hosts in your inventory to ensure they are reachable.
Read 18 tweets
Rakesh Jain Profile picture
Sep 5, 2024
🧵 Mastering Docker Troubleshooting: 15 Key Tips for Developers and DevOps Engineers!

A Thread 👇👇 Image
1/ 🐳 Check Container Status
Use docker ps -a to view all containers and their statuses. A container may have exited unexpectedly.
Look at STATUS and RESTART policies to identify potential issues.
2/ 🔍 Inspect Logs
Run docker logs <container_name> to see the container logs.
This helps troubleshoot crashes, errors, or other issues within the app or service.
Read 18 tweets
Rakesh Jain Profile picture
Sep 3, 2024
🧵 Mastering Dockerfile: A Breakdown of 15 most important Parameters!

A thread 👇👇 Image
1️⃣ FROM:
The first instruction in any Dockerfile. It defines the base image for subsequent instructions.

FROM ubuntu:20.04 - Starts with an Ubuntu 20.04 image.
2️⃣ LABEL:
Adds metadata to the image, such as author or version.

LABEL maintainer="you@example.com" - Tags the image with your contact info.
Read 18 tweets

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