We are certified DevOps engineers sharing practical DevOps tutorials, Kubernetes certification tips, cloud best practices, and hands-on learning resources.
How do I install the latest mongoDB database server and components in Redhat 7 or a centos 7 box? There are no Mongodb packages available in the default yum repository. You need to add the mongoDb...
How do I install latest ansible server on a Redhat or Centos 7 server? You can easily install the latest stable version of ansible in a Redhat or centos7 server using the EPEL repo. The default...
Linux shell is an interactive mode to run the Linux commands. You can type commands in terminal using keyboard and you can run it using shell. Lets say , you want to automate some action on your...
By default vagrant mounts the host folder to /vagrant directory of the Virtual machine where you have the vagrantfile. This allows us to share files and codebase to the virtual machine without dealing with file transfer...
This tutorial will guide you through the steps for deploying a plain spring web application to a tomcat server. If you haven't setup Tomcat server, you can follow the steps given below to set...
In this post, we will discuss some important concepts which showcase some of the advantages of distributed version control systems. A picture is worth thousand words. If you want to know the difference between a centralized...
Q: When I try to use images using "insert into post" option, WordPress is giving a blank page and the image is not getting inserted. How do I solve this issue? The above-mentioned...
Linux is a multitasking system, which means it can run multiple tasks (process) at a time. Basically, a process is...
Note: In Linux, everything is treated as files. Even folders are treated as files. There will be situations where you...
In this second series, you will learn about script debugging, conditional statements and case statements. Debugging shell script Everything goes wrong at some point. You can debug the shell script for error like any other programming...
Why should you learn Linux?Linux is an awesome OS to work with. It is very malleable and it is really really fun to work with linux OS. Am not going to elaborate on this. Just...
When you start learning powershell you wont be knowing all the commands. So the help system will let you discover the commands and gives you a short note about what a particular command does. By using...
What is powershell: Â Â Â Â Â Â Â Windows powershell is an excellent command line shell for windows operating system. It is also described as a an object oriented programming language. Using powershell scripts you can manage your windows operating system,...
Rails form_for helper used the active record class for handling the forms and saving to database. However in some cases you might not want your form data to be saved in a database. For example,...
When you interrupt yum installation and try to reinstall the package again , you are likely to get a transaction lock. You can rectify this issue using the following methods. 1. Remove the db files and rebuild...
