HowTos, Red Hat Satellite

How to Add Capsule Servers to Red Hat Satellite: A Complete Step-by-Step Guide

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Kifarunix
Database, HowTos, MongoDB

Install MongoDB on Rocky Linux 8

HowTos, Cloud Compute, OpenStack

How to Safely Reboot OpenStack Compute Node

Database, MariaDB, MySQL, phpMyAdmin

Install phpMyAdmin with Apache on Fedora 30

HowTos

Install Arkime (Moloch) Full Packet Capture tool on Debian 11

Containers

More
Forward OpenShift Logs to Multiple Destinations Using ClusterLogForwarder (Elasticsearch & S3)

Forward OpenShift Logs to Multiple Destinations Using ClusterLogForwarder (Elasticsearch & S3)

In this blog post, you will learn how to forward OpenShift logs to multiple destinations using ClusterLogForwarder, specifically to Elasticsearch …
Patch Sudo CVEs 2025-32462 & 2025-32463 using Ansible AWX

Patch Sudo CVEs 2025-32462 & 2025-32463 using Ansible AWX

In this blog post, you’ll learn how to patch sudo CVEs 2025-32462 & 2025-32463 using Ansible AWX to secure your …
provision Block Storage for Kubernetes on Rook Ceph Cluster

Provision Block Storage for Kubernetes on Rook Ceph Cluster

In this tutorial, you will learn how to provision block storage for Kubernetes on Rook ceph cluster. Rook is an …
Deploy OpenBao on OpenShift with HA Raft, TLS, and Static Key Auto-Unseal: No Cloud KMS Needed

Deploy OpenBao on OpenShift with HA Raft, TLS, and Static Key Auto-Unseal: No Cloud KMS Needed

Configure HTPasswd Identity Provider in OpenShift 4.x

Step-by-Step Guide: How to Configure HTPasswd Identity Provider in OpenShift 4.x

integrate OpenShift with Active Directory for Authentication

Integrate OpenShift with Active Directory for Authentication

Extend OpenShift CoreOS /sysroot Root Filesystem

Extend OpenShift CoreOS /sysroot Root Filesystem

How to Backup and Restore Applications in OpenShift 4 with OADP (Velero) and ODF

Part 1: How to Install and Configure OADP Operator on OpenShift 4

Static Pods vs Mirror Pods vs DaemonSets

Kubernetes Pod Management: Static Pods vs Mirror Pods vs DaemonSets

Eliminate Static Secrets from GitLab CI/CD with OpenBao on OpenShift

Eliminate Static Secrets from GitLab CI/CD with OpenBao on OpenShift

Install and Use Docker on Debian 10 Buster

OpenShift Builds and BuildConfig

OpenShift Builds and BuildConfig Essentials: A Comprehensive Guide

Setup Kubernetes Cluster on Ubuntu

Install and Setup Kubernetes Cluster on Ubuntu 24.04

install etcdctl on kubernetes cluster

How to Install etcdctl on Kubernetes Cluster

Setup Three Node Docker Swarm Cluster on Ubuntu

How to Setup Three Node Docker Swarm Cluster on Ubuntu 22.04

Serverless Computing with Linux on AWS Lambda

Serverless Computing with Linux on AWS Lambda

kubernetes kubeconfig

What is Kubeconfig File in a Kubernetes Cluster?

Deploy Multi-Node OpenStack using Kolla-Ansible

Deploy Multinode OpenStack using Kolla-Ansible

install-and-configure-openshift-odf-ocp

How to Install and Configure OpenShift Data Foundation on OpenShift 4.20: Step-by-Step Guide [2026]

Security

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3 Internet Security Tips for 2022

Install Nagios NRPE Agent on RHEL/CentOS/Oracle Linux

Install and Configure Libreswan VPN Client on Ubuntu/Debian

Most Popular

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Install phpLDAPadmin on Rocky Linux 8
HowTos, Directory Server, OpenLDAP

Install phpLDAPadmin on CentOS 8

Certifications, Cisco CCNA R&S

How to Pass Cisco 200-150 Exam Using Valid and Updated Exam Dumps?

Monitor Docker Swarm Service Metrics using Grafana
HowTos, Containers, Docker, Monitoring

Monitor Docker Swarm Service Metrics using Grafana

openldap sssd
HowTos, Directory Server, OpenLDAP

Configure SSSD for LDAP Authentication on Ubuntu 20.04

Storage, Ubuntu 18.04

Install and Configure BackupPC as a Backup Server on Ubuntu 18.04

HowTos, KVM, Virtualization

How to fix QEMU/KVM Not Connected Error on Ubuntu 20.04

Basic Operation of Firewalld in Linux

Install Zammad Ticketing System on Debian 12

How to Easily Enable and Configure Cortex Analyzers

Encrypt Drives with LUKS in Linux

How to Install OpenVPN Server on Ubuntu 24.04

Install and Enroll Elastic Agents to Fleet Manager in Linux

Install ClamAV on Rocky Linux 8

Easy way to Integrate TheHive with Cortex

Deploy OpenBao on OpenShift with HA Raft, TLS, and Static Key Auto-Unseal: No Cloud KMS Needed

The Benefits & Risks of Using Website Encryption

Configure Apache with SSL/TLS Certificates on CentOS 8

MONITORING

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Install OSSEC HIDS Agent

How to Install OSSEC Agent on Mac OS

koromicha

In this guide, we are going to learn how to install OSSEC agent on Mac …

fleet

Install and Setup Kolide Fleet on Ubuntu 18.04

koromicha

In this guide, we are going to learn how to install and Setup Kolide Fleet …

Monitor SSL/TLS Certificate Expiry with Prometheus and Grafana

Monitor SSL/TLS Certificate Expiry with Prometheus and Grafana

koromicha

In this tutorial, you will learn how to monitor SSL/TLS certificate expiry with Prometheus and …

Wazuh siem dashaboard

Install Wazuh SIEM Server on Ubuntu 24.04

Kifarunix

In this tutorial, you will learn how to install Wazuh SIEM server on Ubuntu 24.04. …

How to Monitor Disk Input/Output on Linux

How to Monitor Disk Input/Output on Linux

koromicha

In this tutorial, you will learn how to Monitor Disk Input/Output on Linux. In most …

install Fleet osquery manager on Ubuntu 20.04

Install Fleet Osquery Manager on Ubuntu 20.04/Ubuntu 22.04

koromicha

In this tutorial, you will learn how to install Fleet osquery manager on Ubuntu 20.04/Ubuntu …

How to Monitor OpenVPN Connections using openvpn-monitor tool

gen_too

In this tutorial, we are going to learn how to monitor OpenVPN connections using openvpn-monitor …

grafana server

Install Grafana on Rocky Linux 8

gen_too

In this guide, we are going to learn how to install Grafana on Rocky Linux …

Install Sensu Go Ubuntu/debian/rocky

Install Sensu Go on Ubuntu 22.04

koromicha

In this tutorial to learn how to install Sensu Go on Ubuntu 22.04. Sensu is …

wazuh vt

Detecting Malicious Files with Wazuh and VirusTotal

gen_too

In this tutorial, you will learn on detecting malicious files with Wazuh and VirusTotal. Wazuh …

Install Cortex on Ubuntu 22.04/Ubuntu 20.04

Install Cortex on Ubuntu 22.04/Ubuntu 20.04

In this tutorial, you will learn how to install Cortex on Ubuntu 22.04/Ubuntu 20.04. Cortex is a powerful observable analysis …
How to Upgrade ELK Stack 7.x to ELK Stack 8.x

How to Upgrade ELK Stack 7.x to ELK Stack 8.x

How to upgrade Elasticsearch 7 to 8? In this guide, you will learn how to upgrade ELK Stack 7.x to …
monitor docker containers using nagios

How to Monitor Docker Containers using Nagios

Can Nagios monitor docker container? Yes, in this tutorial, you will learn how to monitor Docker containers using Nagios. Monitoring …

NETWORKING

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Easy way to Test Internet Speed on Linux Terminal

Easy way to Test Internet Speed on Linux Terminal

In this tutorial, we will show you an easy way to test Internet speed on Linux terminal. More often than …
Install and use NMCLI tool on Debian Linux

Install and use NMCLI tool on Debian Linux

In this tutorial, we provide a step by step guide on how to install and use NMCLI tool on Debian …
install wireshark on Linux

Install Wireshark on Ubuntu 22.04

In this guide, you will learn how to install Wireshark on Ubuntu 22.04. Wireshark is the world’s foremost and widely-used …
Set Static Routes via an Interface/IP on CentOS/Ubuntu

Set Static Routes via an Interface/IP on CentOS/Ubuntu

In this tutorial, you will learn how to set static routes via an interface/IP on CentOS/Ubuntu systems. In a network, …
install Malcolm network traffic analysis tool on Ubuntu

Analyze PCAP Files using Malcolm Network Traffic Analysis tool

In this tutorial, you will learn how to analyze PCAP files using Malcolm network traffic analysis tool. Malcolm can be …
Securing OpenShift Networking with Network Policies: Default Deny, Cross-Namespace Rules, and Egress Filtering

Securing OpenShift Networking with Network Policies: Default Deny, Cross-Namespace Rules, and Egress Filtering

Securing OpenShift networking with network policies is one of the most critical steps in moving from a flat, permissive cluster …
Install and use NMCLI tool on Debian Linux

Connect to WiFi in Linux Using NMCLI command

This tutorial will guide you on how to connect to WiFi in Linux using NMCLI command. NMCLI is a command-line …
install wireshark on Linux

Install Latest Wireshark on Ubuntu 18.04

In this guide, we are learn how to install latest Wireshark on Ubuntu 18.04. Wireshark is the world’s foremost and …
How to fix Cisco Catalyst 8000v Edge Stuck on Bootloader upgrade not Necessary

Cisco Catalyst 8000v Edge Stuck on Bootloader upgrade not Necessary

How to fix Cisco Catalyst 8000v Edge Stuck on Bootloader upgrade not Necessary? Well, in one way or another, you …
Configure Static IP Addresses using Netplan on Ubuntu

Configure Static IP Addresses using Netplan on Ubuntu

How to set static IP addresses using Netplan on Ubuntu? In this tutorial, you will learn how to configure static …
Create Virtual/Secondary IP addresses on an Interface in Linux

Create Virtual/Secondary IP addresses on an Interface in Linux

Follow through this tutorial to learn how to create virtual/secondary IP addresses on an interface in Linux. This enables you …

Install and Setup OpenVPN Server on Fedora 29/CentOS 7

In this guide, we are going to learn how to Install and Setup OpenVPN Server on Fedora 29/CentOS 7. OpenVPN …

STORAGE

More

Backup Windows System with BackupPC Using Rsyncd

ODF Ceph Storage Full: Recover and Expand OpenShift Data Foundation Storage on Bare Metal

Shrink KVM Virtual Machine LVM Partitioned Disk

Install ownCloud Server on Debian 11

Deploy Ceph Storage Cluster in Kubernetes using Rook

Provision Block Storage for Kubernetes on Rook Ceph Cluster

Install and Configure BackupPC on Debian 10

Install and Setup Ceph Storage Cluster on Ubuntu 20.04

VIRTUALIZATION

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install portainer on Linux

Install Portainer on Debian 11/Debian 10

koromicha

In this tutorial, you will learn how to install Portainer on Debian 11/Debian 10. Portainer is …

Install Rocky Linux 8 on VirtualBox

Install Rocky Linux 8 on VirtualBox

koromicha

Follow through this tutorial to learn how to install Rocky Linux 8 on VirtualBox. According …

deploy HAProxy as a Docker container

Deploy HAProxy as a Docker Container

gen_too

Follow through this tutorial to learn how to deploy HAProxy as a Docker container. HAProxy …

bullseye 11

Install Debian 11 on VirtualBox

gen_too

Follow through this tutorial to learn how to install Debian 11 on VirtualBox. The Debian …

How to Rename KVM Virtual Machine with virsh command

How to Rename KVM Virtual Machine with virsh command

koromicha

Is it possible to rename KVM virtual machine? Yes, follow through this guide to learn …

Upgrade VirtualBox 6.x to VirtualBox 7.x on Ubuntu/Debian

Upgrade VirtualBox 6.x to VirtualBox 7.x on Ubuntu/Debian

koromicha

In this tutorial, you will learn how to upgrade VirtualBox 6.x to VirtualBox 7.x on …

Change Windows Boot Device from IDE to Virtio on KVM

Change Windows Boot Device from IDE to Virtio on KVM

koromicha

In this tutorial, you will learn how to change Windows boot device from IDE to …

Install VirtualBox Guest Additions on AlmaLinux

Install VirtualBox Guest Additions on AlmaLinux

Kifarunix

Follow through this tutorial to learn how to install VirtualBox guest additions on AlmaLinux. We …

Use VirtualBox VMs on KVM

Use VirtualBox VMs on KVM

koromicha

Do you have some VirtualBox virtual machines that you would like to re-use on your …

Install VirtualBox Guest Additions on Rocky Linux 9

Install Oracle Linux 9 on VirtualBox

koromicha

In this tutorial, you will learn on how to simply install Oracle Linux 9 on …

Install KVM on Oracle Linux

Install KVM on Oracle Linux

In this tutorial, you will learn how to install KVM on Oracle Linux. KVM, an acronym for Kernel-based Virtual Machine, …
List Running and Stopped VMS on KVM

List Running and Stopped VMS on KVM

Follow through this guide to learn how to list running and stopped vms on KVM. KVM, an acronym for Kernel-based …

Install VirtualBox Guest Additions on CentOS 8

In our previous guide, we learnt how to Install CentOS 8 on VirtualBox. However, it doesn’t display in full-screen view …

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