Common errors encounter for applications in Linux
When troubleshooting applications in Linux, a wide range of errors can occur due to various reasons such as configuration issues, resource limitations, dependency problems, and more. Below is a list…
Types of errors encounter in virtual machine (VM) in Linux
When managing a virtual machine (VM) in Linux, you may encounter various types of errors that necessitate checking the logs in the /var/log directory, particularly the syslog file and other…
Troubleshooting a web server in Linux
Troubleshooting a web server in Linux involves checking various components, including the server status, configuration files, logs, network settings, and more. Here’s a step-by-step guide to help you troubleshoot common…
Troubleshooting an application in Linux
Troubleshooting an application in Linux involves a systematic approach to diagnose and resolve issues. Here are some steps and commands to help you troubleshoot applications effectively: 1. Check Application Status…
To check system performance metrics in Linux
To check system performance metrics such as CPU, RAM, disk, I/O, and network in Linux, you can use a combination of built-in tools and utilities. Here are some of the…
To check the logs of a virtual machine in Linux
To check the logs of a virtual machine in Linux, particularly focusing on the /var/log directory and using the grep command to filter the syslog files, follow these steps: 1.…
Main Tasks of an SRE (Site Reliability Engineer)
1. Monitoring and Observability 2. Incident Response and Management 3. Performance Tuning and Capacity Planning 4. Automation and Tooling 5. Reliability Engineering 6. Infrastructure Management 7. Security and Compliance 8.…
Bash Scripting
1. Introduction to Bash Scripting What is Bash? 2. Basic Concepts Shebang (#!) Creating and Running a Script 2.Add Executable Permissions: Make the script executable 3. Edit the Script File:…
Top 100 Complex Linux Troubleshooting Commands (Combined with Other Commands)
Command Combination Description Example dd if=/dev/urandom of=/tmp/randomfile bs=1M count=10 Create a 10MB file with random data. dd if=/dev/urandom of=/tmp/randomfile bs=1M count=10 find / -name “*.log” -mtime +30 Find log files…
Top Linux Troubleshooting Commands with Examples
Command Description Example top Display tasks and system information. top htop Interactive process viewer. htop ps Display current processes. ps aux kill Terminate a process by PID. kill -9 1234…
Ultimate guide for terraform from basic to advance
What is the need of terraform IAAC? The need for Terraform Infrastructure as Code (IaAC) is driven by several key benefits: Summary: List of IaaC tools Here is a list…
Ansible – Vault in Ansible (Part-11)
What is Ansible Vault? Ansible Vault is a feature within Ansible that allows you to keep sensitive data, such as passwords, keys, and other secrets, secure. Vault encrypts the contents…
Ansible – Inventory variables in Ansible (Part-11)
What are Inventory Variables in Ansible? Inventory variables in Ansible are key-value pairs that provide additional context and configuration for hosts and groups defined in your inventory. These variables can…
Ansible – How Default Ansible Variables Work (Part-10)
How Default Variables Work 1.Default Variables in a Role Default variables for a role are defined in the defaults/main.yml file. These variables provide baseline values that the role will use…
Ansible – Ansible Roles (Part-9)
What is an Ansible Role? An Ansible role is a way to group multiple tasks, variables, handlers, files, templates, and other resources into a reusable and structured format. Roles provide…
Ansible – Ansible Templates (Part-9)
We can declare variables in Which can be used & Intropolate only in playbook Tasks but not in the files used in playbook. Solution: TemplateUsing Template module you can Interpolate…
Ansible – How to loop and iteration executations in Ansible Playbook with Example (Part-8)
Looping in Ansible allows you to repeat a task multiple times with different inputs. This feature is particularly useful for managing lists of items, such as packages to install, users…
Ansible – Condition module executations in Ansible Playbook with Example (Part-7)
Ansible conditioning, also known as conditional statements, allows you to execute tasks in a playbook based on specific conditions. This feature makes your playbooks more dynamic and adaptable to different…
Ansible – Ansible Variables (Part-6)
Variables (Vars) Variables are an essential part of Ansible playbooks, allowing you to make your playbooks more flexible and reusable. Types of Variables: Variables in Playbook: Variables in a Vars…
Ansible – Ansible Playbook (Part-5)
An Ansible playbook is a YAML file that defines a set of tasks to be executed on a group of hosts. Playbooks are designed to be human-readable and allow you…