Deepak Prasad

Step by Step instructions to configure Master Slave BIND DNS Server on Rocky Linux 8.

Fix Overcloud "No valid host was found. There are not enough hosts available" on Undercloud OpenStack with Red Hat — baremetal, IPMI, compute services, and flavor property mismatches.

5 steps guide to Install and configure fail2ban SSH on RHEL/CentOS 7/8 Ubuntu 18 with examples. Fail2ban log rotation list banned ip firewall iptables multiport

When you dive into the realm of eСommerce, Magento is a name that frequently pops up, standing out as a cornerstone in the industry. But with great power

Step by step guide to upgrade multiple HPE VC firmware (Virtual Connect) using Smart Update Manager. Perform parallel upgrade of the VC using SUM.

What is GlusterFS Tutorial Replication Types of Volumes. Distributed Volume Replicated Volume. RHEL CentOS 8 glusterfs shared storage. gluster file system linux

Steps to set grub2 password using grub2-setpassword for unautorized modification of grub2 entries. Also steps to remove grub2 password from rhel /centos 7

Steps to change IO scheduler permanently in Linux using tuned profile and grub2 kernel or you can change IO scheduler using /sys/block/sdX/queue/scheduler

In this tutorial we have covered 8 different methods to find file in Linux using filename, file extension, file type, file size, file's modification date, file permission, file ownership etc

Steps and best practices to update kernel-core and kernel-modules in Red Hat or CentOS 8 using yum and dnf. List and verify default kernel version

In this tutorial we will cover the steps to install MongoDB on Rocky Linux.

To integrate Samba share with Active Directory we can use winbind to join Linux client with domain controller and use smbclient to access the windows share

Step by step tutorial to configure postfix using third party gmail smtp relay to send mails to external network. Use SASL with Google 2-Step Authentication

Step by Step guide tutorial on how to install and configure FreeIPA, ipa server LDAP, kerberos, DNS and IPA client on RHEL/CentOS 7 Linux with GUI and CLI

Step-by-Step Tutorial to configure cluster fencing, stonith device in RHEL and CentOS 8 Linux. Use fence_xvm to fence KVM HA Cluster nodes. Setup pacemaker fencing.

Applications inside pods can be associated with a custom Service Account or default SA will be used. By default, pods run under the default ServiceAccount, which is created for each namespace automatically

Weather information is vital in our daily lives, from planning outdoor activities to making informed decisions in sectors like agriculture, transportation,

Step by step instructions to install ELK Stack on Rocky Linux. Install Elasticsearch, Logstash and Kibana

In this guide, we shall setup Grafana with Prometheus on Rocky Linux 8, we will use Grafana instance on the same server so that we can visualize metrics populated by the Prometheus service.

Step by step instructions to create pod security policy in Kubernetes. Verify securitycontext and linux capabilities with pod security policy

Step-by-Step Guide to create KVM Virtual Machine using Virtual Manager in RHEL and CentOS 8 Linux. Create VM, Take Snapshot, Assign Networks using Virtual manager GUI

Step by Step instructions to install mongodb on AlmaLinux 8. Access mongodb shell, create admin user, establish a connection with mongodb server using a different client. configure firewall and selinux

In this tutorial I will cover the basics of tmux from scratch using various tmux commands to create session, windows, splitting panes, killing session etc

How to grep multiple strings and patterns in single line from a file in Linux or Unix? Is it possible to grep multiple strings using single command from a file?

Step by step instructions to install DVWA in Kali Linux with screenshots.

Step by Step instructions to install node.js and npm on kali linux with screenshots. Two different methods to install node.js and NPM using default repository and official archive

In this tutorial I have shared the commands and examples to remove directory in Linux properly without loosing any data. Delete directories and sub directories using single command with and without regex

Mount ConfigMap as file into an existing directory in Kubernetes with and without helm charts. Mount files into an existing volume inside Pod container.

In this article we will explore the usage of Kubernetes Secrets using some real time scenarios and examples. Ideally we use Secrets to declare confidential

Step by step instructions to mount multiple secrets to same directory in Kubernetes. 4 different ways to mount multiple secrets to same path.