Rakesh Jain Profile picture
Linux Enthusiast ๐Ÿง | Content Creator ๐Ÿ“ | Automating everything from code to infrastructure with DevOps ๐Ÿ’ป
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Mar 31 โ€ข 19 tweets โ€ข 3 min read
Docker File Explained!

A Thread ๐Ÿ‘‡ Image 1/ A Dockerfile is a text file that contains instructions for building a Docker image.
Mar 20 โ€ข 18 tweets โ€ข 4 min read
Why one should use Kubernetes!

Who should use Kubernetes!

A detailed Thread ๐Ÿ‘‡ PS: https://svitla.com/uplo... Why one should use Kubernetes!
Mar 16 โ€ข 18 tweets โ€ข 6 min read
On Demand Thread! @VISHWANTH1310

Differences between yum and rpm!

A Detailed thread ๐Ÿ‘‡ PS: https://diffzi.com/wp-content/uploads/2018/11/Yum-vs.-RP 1/ A major difference between #yum and #rpm is that yum is a package manager, while rpm is a package format. Yum uses rpm as its underlying packaging format, but adds additional functionality to manage package dependencies.
Mar 10 โ€ข 18 tweets โ€ข 3 min read
What is JUMP or BASTION host!

A short thread ๐Ÿ‘‡ PS: https://i.ytimg.com/vi/... Definition -

A jump host or bastion host is a secure gateway or intermediate server that is used to access a private network from an external network or the internet.
Mar 9 โ€ข 20 tweets โ€ข 3 min read
How to make rsync faster? There are several ways to make rsync faster when transferring files or directories:
Mar 8 โ€ข 33 tweets โ€ข 3 min read
Step-by-Step GitHub process!

A Mega Thread ๐Ÿ‘‡ Here are the step-by-step instructions for creating a local repository on your system using Git and GitHub -

[1] Open your terminal or command prompt.
Mar 7 โ€ข 11 tweets โ€ข 4 min read
Some tips and tricks for using the nano editor:

A short Thread ๐Ÿ‘‡ [1] Navigation:

* Use the arrow keys to move the cursor

* Use the Ctrl key + the arrow keys to move one word at a time

* Use Ctrl + a to move to the beginning of the line

* Use Ctrl + e to move to the end of the line

* Use Ctrl + _ (underscore) to jump to a specific line no
Mar 6 โ€ข 26 tweets โ€ข 9 min read
Beginner to Advanced Linux administration tips and tricks!

A Mega Thread ๐Ÿ‘‡ [1] Use SSH keys for authentication:

Rather than using passwords, use SSH keys for authentication. This adds an extra layer of security and makes it more difficult for unauthorized users to gain access to your system.
Mar 5 โ€ข 23 tweets โ€ข 2 min read
Examples of Ansible ad-hoc commands ๐Ÿ‘‡

A Thread ๐Ÿ‘‡ [1] Ping all servers in a group:

ansible all -m ping
Mar 2 โ€ข 4 tweets โ€ข 1 min read
Kubernetes Commands Cheat Sheet ๐Ÿ‘‡ PS: https://wallpaperaccess... Basic Commands + Working with Pods ๐Ÿ‘‡ Image
Mar 2 โ€ข 18 tweets โ€ข 4 min read
How to perform memory management in Linux!

A Detailed Thread ๐Ÿ‘‡ [1] Monitoring memory usage:

You can monitor the memory usage of your Linux server using various command-line tools, such as top, htop, and free. These tools display the amount of memory used by each process, the total amount of available memory, and other relevant information.
Mar 1 โ€ข 16 tweets โ€ข 5 min read
How to secure an nginx load balancer!

A Thread ๐Ÿ‘‡ PS: https://www.hugeserver.com/kb/wp-content/uploads/2017/08 [1] Keep nginx updated:

To keep nginx updated, you can use the package manager of your Linux distribution to install the latest version of nginx.

For example, on Ubuntu, you can use the following command to update nginx:

sudo apt update && sudo apt upgrade nginx
Feb 28 โ€ข 17 tweets โ€ข 3 min read
Some kubectl tips and tricks!

A short Thread ๐Ÿ‘‡ PS: https://blog.palark.com/wp-content/uploads/2020/08/kubec [1] Use "kubectl explain" to get detailed information about any Kubernetes resource.

For example, "kubectl explain pod.spec" will give you detailed information about the Pod specification.
Feb 27 โ€ข 19 tweets โ€ข 7 min read
Some useful Ansible tips and tricks!

A Thread ๐Ÿ‘‡ PS: https://wafid.co/wp-content/uploads/2020/02/Language-Lea [1] Use Ansible Vault to encrypt sensitive data:

Vault is a built-in feature dat allows u to encrypt sensitive data, such as passwords & API keys. U can use it to encrypt individual vars or entire files, & it integrates seamlessly with Ansible's inventory & playbook structures PS: https://miro.medium.com/max/1400/0*rM9L6Q0-YD7-rjKN.
Feb 25 โ€ข 29 tweets โ€ข 5 min read
How to manage Windows hosts with Ansible!

A Short Thread ๐Ÿ‘‡ Ansible playbooks define the desired state of a system and the tasks that need to be performed to achieve that state. Ansible uses SSH to communicate with Linux hosts and WinRM (Windows Remote Management) to communicate with Windows hosts..
Feb 23 โ€ข 18 tweets โ€ข 6 min read
What are the different stages involved in migrating your ON-PREM environment to Kubernetes?

A Short Thread ๐Ÿ‘‡ Migrating an on-premises environment to Kubernetes involves several stages. Here are the key stages:
Feb 22 โ€ข 18 tweets โ€ข 4 min read
How to secure a Kubernetes Pod ?

A Short Thread ๐Ÿ‘‡ Securing a Kubernetes pod involves a multi-layered approach that includes the following steps:
Feb 21 โ€ข 13 tweets โ€ข 2 min read
How to secure a Docker container?

A Short Thread ๐Ÿ‘‡ Securing a Docker container involves a combination of best practices and implementation of security features that reduce the chances of vulnerabilities and attacks.

Here are some steps you can take to secure a Docker container ๐Ÿ‘‡
Feb 17 โ€ข 14 tweets โ€ข 2 min read
What are ACL's in Linux?

A detailed Thread ๐Ÿ‘‡ PS: https://devconnected.com/wp-content/uploads/2019/09/Copi Access Control Lists (ACLs) are a mechanism in Linux that allow users to set permissions for a file or directory that go beyond the traditional read, write, and execute permissions. ACLs enable finer-grained control over access to files and directories.
Feb 16 โ€ข 10 tweets โ€ข 2 min read
How to safeguard an AWS IAM user which has only programmatic access?

A short Thread ๐Ÿ‘‡ [1] Use strong access keys:

Require IAM users to use strong access keys that are difficult to guess. Access keys should be at least 12 characters long and include a mix of uppercase and lowercase letters, numbers, and special characters.
Feb 15 โ€ข 10 tweets โ€ข 2 min read
How to make Ansible playbook run faster โฉ ?

A short Thread ๐Ÿ‘‡ [1] Use a more efficient connection plugin:

The default connection plugin for Ansible is SSH, but there are other options that can be faster for certain scenarios, such as the "accelerate" plugin or the "paramiko" plugin.