Author

Deepak Prasad

Deepak Prasad

R&D Engineer

at · 1129 articles published

Founder of GoLinuxCloud with more than 15 years of expertise in Linux, Python, Go, Laravel, DevOps, Kubernetes, Git, Shell scripting, OpenShift, AWS, Networking, and Security. With extensive experience, he excels across development, DevOps, networking, and security, delivering robust and efficient solutions for diverse projects.

Areas of expertise

Certifications & credentials

  • Red Hat Certified System Administrator in Red Hat OpenStackID: 180-246-001
  • Certified Kubernetes Application Developer (CKAD)
  • Red Hat Certified Specialist in Ansible Automation
  • Go: Data Structures, Algorithms and Design Patterns With Go
Author profile illustration for Deepak Prasad — technical writer at GoLinuxCloud

Articles by Deepak Prasad

system-administration

Create Custom RHEL ISO using Cockpit Image Builder (CentOS/RHEL 8)

Steps to create custom RHEL ISO using Cockpit Image Builder Web Console and CLI in RHEL 8 Linux. Create Live ISO, QCOW2, Amazon Machine Image, Azure Disk Img

Deepak Prasad10 min read
devops

Steps to install Kubernetes Cluster with minikube

Deploy single node Kubernetes Cluster using minikube using Oracle VirtualBox on Windows environment. The cluster node will be on Ubuntu Linux.

Deepak Prasad6 min read
networking

Connect VM to internet in Oracle VirtualBox [10 Steps]

Steps to enable and connect virtual machine to internet connection on Oracle VirtualBox and VMware Workstation Player on Linux. Configure Bridged & NAT Network

Deepak Prasad5 min read
devops

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..

Deepak Prasad8 min read
system-administration

How to properly update kernel in RHEL/CentOS 7/8 Linux

Steps to update kernel properly in production environment with examples. Precautions to be considered before and after you update kernel in RHEL/CentOS 7 and 8

Deepak Prasad7 min read
linux

Step-by-Step: YUM install specific version of Package

How to yum install specific version of rpm in Linux. yum show installed packages, yum search package, install specific version of rpm with yum or dnf. yum install from specific repo

Deepak Prasad6 min read
system-administration

Join Linux to Windows domain using adcli (RHEL/CentOS 7/8)

The adcli will be using System Security Services Daemon (SSSD) to connect a CentOS/RHEL 7/8 system to Microsoft Active Directory Windows Domain

Deepak Prasad11 min read
linux

6 different commands to restart network in RHEL/CentOS 7/8

The command to restart network in RHEL or CentOS 6,7 and 8 would vary depending upon your network configuration. If you are using NetworkManager then you can simply restart NM service

Deepak Prasad7 min read
system-administration

5 simple methods to test ssh connection in Linux & Unix

Multiple commands to test ssh connection in Linux and Unix. How to test and check SSH connections with and without shell script examples. Check 22 port status.

Deepak Prasad7 min read
linux

KVM Virtualization | Install KVM | RHEL/CentOS 8

KVM Tutorial. Steps to install KVM (Kernel Based Virtual Machine) in RHEL/CentOS 8 Linux. Learn about KVM Hypervisor and KVM virtualization.

Deepak Prasad5 min read
devops

Helm hooks examples in Kubernetes for beginners

Helm hooks provides a means to hook into events in the release process and take action. Hooks like pre-install can be used to pass configmaps and secrets to the pods and Jobs

Deepak Prasad14 min read
linux

Windows Subsystem for Linux (WSL2) on Windows 10 (Step-by-Step)

Step by Step guide to install windows subsystem for Linux (WSL2) using Windows 10. Install Ubuntu on Linux using WSL.

Deepak Prasad5 min read
linux

How to suppress sysctl: reading key net.ipv6.conf.all.stable_secret in Linux

Steps to suppress sysctl: reading key "net.ipv6.conf.all.stable_secret" message while running sysctl -a to grep a value from STDOUT with example in Linux

Deepak Prasad3 min read
system-administration

List All Active SSH connections in Linux [8 Methods]

List active SSH connections in Linux. Show SSH connection history. Show active SSH sessions in Linux using multiple commands. How to check active ssh sessions.

Deepak Prasad11 min read
security

How to Inject Encoded Payload

One major problem that most Ethical hackers and penetration testers face is bypassing Anti-Virus software when executing payloads. If you are running an

Deepak Prasad8 min read
cloud

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

Deepak Prasad14 min read
devops

How to perform Kubernetes RollingUpdate with examples

Kubernetes RollingUpdate is used with deployments to perform updates time zero downtime by incrementally updating Pods instances with new ones.

Deepak Prasad14 min read
system-administration

4 useful methods to automate ssh login with password in Linux

How to automate SSH login with password? How to pass password to scp command used in bash script ? How to perform SSH login with password instead of using private key?

Deepak Prasad15 min read
linux

Configure kickstart server | PXE boot server | RHEL/CentOS 8

PXE boot server configuration in linux step by step, kickstart linux tutorial, configure kickstart server, network based installation in linux using kickstart

Deepak Prasad16 min read
linux

Configure vnc server in RHEL 8 Linux

Step by step tutorial to configure vnc server in RHEL 8 Linux with examples Xvnc is the X VNC (Virtual Network Computing) server. It is based on a standard X

Deepak Prasad4 min read
system-administration

2 ways to update and rebuild initrd image in CentOS/RHEL 7 and 8

Steps to extract, modify, update and rebuild initrd image in CentOS RHEL 7 and 8 ISO DVD with examples using XZ / LZMA format Update initrd with modules drivers

Deepak Prasad10 min read
system-administration

Configure secure logging with rsyslog TLS to remote log server (CentOS/RHEL

Configure secure logging to remote log server with rsyslog TLS certificates in CentOS/RHEL 7 Forward syslog to remote log server securely using TLS certificates

Deepak Prasad16 min read
security

Tutorial: Encrypt, Decrypt, Sign a file with GPG Public Key in Linux

How to and Tutorial on encrypting decrypting signing message file with GPG key pair passphrase of private public key in Linux with example on command line

Deepak Prasad12 min read
security

Simple steps to install & configure ClamAV in CentOS 7

Step by step guide to install and configure ClamAV on CentOS / RHEl 7 Linux. ClamAV is an open source antivirus tool to protect against trojan, viruses etc

Deepak Prasad9 min read
cloud

How to Configure Tripleo Undercloud to deploy Overcloud in OpenStack

Step by Step guide to install tripleo (openstack on openstack) undercloud and deploy overcloud in Openstack using virtual machines on Red Hat (RHEL 7)

Deepak Prasad17 min read
cloud

How to Install TripleO Undercloud (Openstack) on RHEL 7

Step by step guide to Install TripleO Undercloud and deploy Overcloud in Openstack with single compute and controller node on KVM (virt-manager) RHEL 7

Deepak Prasad14 min read
linux

5 easy steps change grub2 background image splash screen

Steps to change grub2 background image in Linux. The steps are valid for both legacy and UEFI BIOS. Use any JPE/JPEG or PNG image to set your own boot loader splash screen

Deepak Prasad3 min read
devops

#2-ELK Stack: Enable https with ssl/tls & secure elasticsearch cluster

Steps to enable HTTPS and SSL to secure elasticsearch cluster and ELK Stack using encrypted key and certificates in Linux with examples RHEL/CentOS 7/8

Deepak Prasad9 min read
devops

Setup KVM DRBD Cluster File System Pacemaker CentOS 8

Step-by-Step tutorial to configure DRBD CLuster File System with clone using Pacemaker 2.0 on KVM Virtual Machines with RHEL/CentOS 8 Linux. Verify DRBD Failover

Deepak Prasad11 min read
system-administration

How to transfer files over SSH with SSHFS in Linux & Windows

Step-by-Step Tutorial to transfer files over SSH using SSHFS between two Linux servers or Linux and WIndows server. Copy files between linux and windows using sshfs

Deepak Prasad6 min read