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SRE Assignment & Excercise

ByRajesh Kumar February 5, 2023February 5, 2023

What are the differences between SRE and DevOps?
What SRE team is responsible for?
What is an error budget?
What do you think about the following statement: “100% is the only right availability target for a system”
What are MTTF (mean time to failure) and MTTR (mean time to repair)? What these metrics help us to evaluate?
What is the role of monitoring in SRE?
What are the two main SRE KPIs
What is Toil?
What is a postmortem ?
What is the core value often put forward when talking about postmortem?

Rajesh Kumar

I’m a DevOps/SRE/DevSecOps/Cloud Expert passionate about sharing knowledge and experiences. I have worked at Cotocus. I share tech blog at DevOps School, travel stories at Holiday Landmark, stock market tips at Stocks Mantra, health and fitness guidance at My Medic Plus, product reviews at TrueReviewNow , and SEO strategies at Wizbrand.

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List of Free & Open Source self hosted Application for SSL Certificate expiration Check
ByRajesh Kumar May 29, 2023May 29, 2023

https-ssl-cert-check-zabbix Script to check validity and expiration of TLS/SSL certificate on remote host. Supports: TLS SNI and STARTTLS for protocols like SMTP; internationalized domain names with Punycode(uses libidn); allowing self-signed certs as valid; JSON output; supports any additional s_client options. https://github.com/selivan/https-ssl-cert-check-zabbix go-check-certs This is a simple utility written in Go to check SSL certificates for…

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List of detailed check list to protect and secured laravel projects
ByRajesh Kumar February 13, 2023February 13, 2023

Securing a Laravel project involves implementing a number of best practices to protect the application from various types of attacks, such as SQL injection, cross-site scripting (XSS), cross-site request forgery (CSRF), and more. Here is a detailed checklist to secure your Laravel project: By following this checklist, you can significantly improve the security of your…

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How to Learn SysOps at AWS?
ByAshwani K May 9, 2023June 19, 2023

Are you interested in learning more about SysOps at AWS? If so, you’re in the right place! In this blog post, we’ll cover everything you need to know about SysOps at AWS, including what it is, how to learn it, and why it’s important. What is SysOps at AWS? SysOps at AWS stands for Systems…

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Ansible: All Ways to Define Variables in Ansible Inventory/Hosts
ByRajesh Kumar August 7, 2025August 7, 2025

Here’s a comprehensive tutorial on all the ways to define and use variables in Ansible inventory/hosts, covering every major approach—including their best use cases and clear examples for each. Complete Guide: All Ways to Define Variables in Ansible Inventory/Hosts Ansible variables make playbooks and roles flexible and dynamic. Variables can be defined in multiple ways,…

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Difference between between cmdlets and commands in Windows powershell?
ByRajesh Kumar November 16, 2023November 16, 2023

In PowerShell, a cmdlet (command-let) is a small program that performs a specific task or operation. Cmdlets are the basic building blocks of PowerShell scripting, and they are used to manage and automate tasks in the PowerShell environment. Commands, on the other hand, are more general instructions that are typically used to interact with the…

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AWS Tutorials: Different Types & Modes of Deployment of Amazon EKS
ByRajesh Kumar March 5, 2025

Different Types & Modes of Deployment of Amazon EKS (Elastic Kubernetes Service) Amazon EKS (Elastic Kubernetes Service) provides multiple deployment types and modes based on user requirements, infrastructure needs, and the level of control and automation required. These can be classified into Types (Control Plane Management) & Modes (Worker Node Deployment Strategies). 🔹 Types of…

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