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Jail SSH Users !!!

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- April 27, 2020

Theme images by Michael Elkan

Shailesh Thakur

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Certification for Kubernetes? I got it covered.

- June 16, 2020

Working in such a rapidly growing software industry, there are new software and certifications which are announced almost every day. And for every new certification announced, you would think that doing it would be cool or help you in your career. Similarly, I saw some of the certification announcements, which included AWS, Azure, Jenkins, Docker, and Kubernetes certification. My initial thought was that I should do each & every one of them, but time passed by and here I am, with just one and only certification "CKA". This made me realize and question myself if completing a certification is necessary. Decision : Here is my take on it. Holding a certification won’t get you on top of the world, and not holding one will not make you fall. That being said, I enrolled to complete CKA, and here are a few points which made it easier for me to decide. 1. Cost : For some, this may not be the most important, but I still consider if its worth spending 200/300$ for it...

/bin/systemd systemd, init - systemd system and service manager

- May 24, 2020

Systemd : ~ systemd system and service manager. it runs as daemon with PID 1 Hey Guys, In this post, i will be demonstrating my experience with systemd😎😎 Sharing knowledge is the most fundamental act of friendship, because it is a way you can give something without losing something . Slower Boot times ? | Find the Culprit | Analyze with Systemd👮 Most of time we face a problem of slower boot times when we suddenly reboot or normally boot up our systems either be our local machines or production machines. It is always good to go find out the process causing this and handle it accordingly. systemd-analyze helps you get the exact details of all the processes enabled to start when computer start with total time taken and their contribution in slower boot times. lets see few examples.....👀 Systemctl - Service Manager || Few useful use cases with nfs-server💀💀 Systemctl - L...

Elasticsearch cluster on K3S (light weight kubernetes) | Ubuntu 18.04

- May 19, 2020

Elasticsearch Elasticsearch is a distributed, open source search and analytics engine for all types of data, including textual, numerical, geospatial, structured, and unstructured Structure Sneak-Peak Client Nodes: forwards the request to the data nodes which hold the data. Data Nodes Data nodes hold data and perform data related operations such as CRUD, search, and aggregations. Master Nodes: controls the cluster. Module 1: Pre-Setup Configuration, this includes creating a seperate Namespace,LimitRange and Headless Service . GitRepo https://github.com/sylesh687/k8s-elk.git Module 2 [ Master Nodes] This module includes creation of k8s api objects for Master nodes, this includes configmap for configurations and deployment. Module 3 [ Data Nodes ] This Module contains statefulsets and configmap . you can create storageclass with specific provisioner(aws/gce/azure) Module 4 [ Client Nodes ( The Final ...

Storage Simplified | NFS | LXC | K3S Part 2 ( Volumes )

- May 12, 2020

Slides : https://www.slideshare.net/kinashailesh/storage-simplified-nfs-lxc-k3s Prev Next References: https://help.ubuntu.com/community/SettingUpNFSHowTo

Create Service Before Deployment or Deployment Before Service. How Does It Matter?

- May 11, 2020

Description Create 2 namespaces (red,green) Try both orders(in red namespace create deployment first and than service | in green namespace create service first and than deployment)

Docker in Linux Containers

- May 10, 2020

Steps: Launch Linux Container: lxc launch ubuntu:16.04 docker Install Pre-reqs: apt update && apt install apt-transport-https ca-certificates gnupg-agent software-properties-common -y Add Gpg Public key: curl -fsSL https://download.docker.com/linux/ubuntu/gpg | apt-key add - Add Repository: echo "deb https://download.docker.com/linux/ubuntu/ xenial stable" >> /etc/apt/sources.list.d/docker.list Install: apt update && apt install docker-ce \ docker-ce-cli \ containerd.io -y Done !!! Next

Storage Simplified | NFS | LXC | K3S Part 1 (Setting up NFS Server)

- May 12, 2020

Slides : https://www.slideshare.net/kinashailesh/storage-simplified-nfs-lxc-k3s Next References: https://help.ubuntu.com/community/SettingUpNFSHowTo