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2075 articles
How to configure PXE boot server in Linux ( CentOS / RHEL 7 )
Step by step guide to configure PXE boot server using dnsmasq, dhcp, http, tftp- server in CentOS / RHEL 7 Linux using kickstart to automate the installation
Steps to Install and configure Controller Node in OpenStack – Part 2
Part 2 of step by step guide to install and configure controller node in openstack. To configure controller node in openstack we will configure glance, nova
Steps to Install and configure Controller Node in OpenStack - Part 1
Step by step guide to install and configure controller node in openstack, configure openstack services like keystone, mariadb, rabbitmq, environment files
Understanding resource group and constraints in a Cluster with examples
Understand resource group and constraints with examples in Cluster. Different types of constraint, adding existing resource to group, High Available Cluster
Guide to troubleshoot Cluster Resource (RHEL / CentOS 7)
Configure high availability cluster, create cluster resource and troubleshoot cluster resource for a cluster on Red Hat / CentOS 7 with examples.
Configure High Availability Cluster in CentOS 7 (Step by Step Guide)
Step by Step guide to configure high availability cluster in CentOS or Red Hat 7 using pacemaker and corosync, 3 node HA Cluster on Virtual Box or KVMs..
How to create cluster resource in HA Cluster (with examples)
Configure High Availability Cluster and configure cluster resource and add behind the cluster in CentOS and Red Hat 7 Linux using pcs resource create..
Understanding High Availability Cluster and Architecture
Understand thearchitectecture of different kinds of cluster i.e. high performance, load balancing and high availability cluster in Red Hat Linux
How to pass multiple arguments in shell script with examples
How to pass multiple parameters in shell script in Linux or read or pass multiple input arguments in bash shell script function in Linux using case and if.
Bash Remove Element from Array Smoothly [11 Methods]
How to remove or delete elements of one array from another array in bash with examples. Remove element from array or remove content of one array from another …
How to configure HAProxy in Openstack (High Availability)
Step by Step Guide to configure HAProxy in openstack i.e.High Availability using pacemaker and corosync to configure load balancer cluser in CentOS 7
How to configure Openstack High Availability with corosync & pacemaker
Step by step guide to configure openstack high availability (HA) using pacemaker and corosync for openstack controller nodes with HAProxy and VIP.
How to exit full screen mode in qemu virt-manager ( RHEL / CentOS 7)
How to exit full screen mode in qemu virt-manager for kvm hosts or get out of fullscreen. This article is validated on RHEL / CentOS 7 Linux on vnc viewer.
How to protect GRUB2 from booting kernel without password in Linux
Learn to set password to protect grub2 from booting a kernel without password. in rhel 7.To set password and protect grub2 remove unrestricted in menuentry
How to set GRUB2 password using grub2-setpassword (RHEL / CentOS 7)
Steps to set grub2 password using grub2-setpassword for unautorized modification of grub2 entries. Also steps to remove grub2 password from rhel /centos 7