How to increase instance memory in OpenStack

Dear Friend’s, In this tutorial we will see how to increase instance memory in OpenStack step by step. So that you can apply this step when ever you need to increase instance memory. Sometime we need more RAM to execute some specific task or application which consume lot’s of RAM, in this case we have option to increase instance memory… Read moreHow to increase instance memory in OpenStack

how to install kubernetes cluster on CentOS 7 VM

Dear friends, today we will see how to install kubernetes cluster on CentOS 7 VM step by step. In this tutorial we also know what is kubernetes and how its work? So, let’s start. What is Kubernetes? Kubernetes isĀ an open source software or tool which can be used to orchestrate and manage docker containers in cluster environment. For more details… Read morehow to install kubernetes cluster on CentOS 7 VM

How to Install Docker and manage container in CentOS 7

Dear Friends, In this tutorial we will see how to install Docker and manage container in CentOS 7. We will also see how to stop, start and restart container with Docker commands. Before installation and configuration let’s try to know what is Docker? Why we need Docker? What is Docker? Docker is a software platform that allows you to build,… Read moreHow to Install Docker and manage container in CentOS 7

How to Create and Configure Self-Signed SSL Certificates

In this tutorial we will see how to create and configure self-signed SSL certificates for apache on Linux? What is Self-singed SSL certificates and why we need Self-signed SSL certificates? What is Self-Signed SSL Certificate? Self-signed certificate is an identity certificate that is signed by the same entity whose identity it certifies. This term has nothing to do with the… Read moreHow to Create and Configure Self-Signed SSL Certificates

Ifconfig command not found in CentOS 7 and RHEL 7

Dear friend, today we will see how to resolve the issue “ifconfig command not found” in CentOS 7and RHEL 7. When we have installed CentOS 7 and RHEL 7 with minimal server option, then ifconfig command will not be running, this because net-tools package is not installed by default with minimal server option. If you wan this command in your… Read moreIfconfig command not found in CentOS 7 and RHEL 7