SELinux Security
SELinux is a set of security rules using which we can control the processes that can access specific files, folders and ports. These processes, files, folders and ports has a special security label called SELinux…
Python programming 2: Object Oriented Programming
Python is a hight level programming language that supports Object Oriented Programming. The concepts one should be familiar is Class, Objects and instances, methods or functions, etc. Thus tutorial is aimed to introduce OOP using…
Python programming 1: Basics
Python is an interpreted language and not a compiled language. Therefore, it executes commands and outputs the results of each command in a sequence, till it hits an issue, or completes the program. This tutorial…
Ansible Playbook: Deploy Apache, PhP, MySQL and copy files
Ansible Playbook comprises of one or more plays, which in turn consists tasks. The Playbook consists of Modules, APIs and Plugins. Modules consists of the Tasks to be executed. APIs are used for CLI access…
SSH : Password-less authentication
At times, for example if a server has a script that needs to copy a file to a client via SSH, it will be good if the server can SSH to the client without using…
Ansible : Introduction, installation and configuration
Ansible is an opensource automation tool used for Configuration Management. It is used for Application Deployment and server provisioning. It works on an agent less architecture on client nodes. It used a simple language called…
Configuration Management
Imagine you want to install php in about 200 system, or perform an update of php in these systems !! What if we need to roll-back to a previous version of php in there systems…
Build and package a Java application using Jenkins, Git and Maven
In this document we will be going through an outline of compiling and packaging a Java application using Jenkins. Here Jenkins downloads all files (few java codes) from GitHub repository and uses Maven to compile…
Git – Installation on CentOS 7
This is a continuation of my previous post about Git and GitHub Installation of Git on Linux, CentOS 7 server is pretty simple. This will be required especially if you are installing Jenkins on a…
Jenkins – Intro and Installation
Jenkins is a Continuous Integration System, and can be made to work as a continuous delivery hub for projects. It is a java based program, ready to run out-of-the-box. that gives a GUI base dashboard to manage the…