HowTos, Ubuntu 18.04

How to Setup or Join Zoom Meetings on Ubuntu 18.04 LTS

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koromicha
HowTos, Linux Commands

6 Best Gadgets That Will Help You Finish That Essay

HowTos

Install Signal Messenger on Ubuntu 20.04

HowTos

Run Nexus Repository Behind Nginx Reverse Proxy

FreeBSD, HowTos, OpenVPN

Install and Configure OpenVPN Server FreeBSD 12

Containers

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

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

In this blog post, you will learn how to backup and restore applications in OpenShift 4 with OADP (Velero). In …
Configure CloudBees CI High Availability for Managed Controllers on OpenShift

How to Configure CloudBees CI High Availability for Managed Controllers on OpenShift

If you are about to create your first CloudBees CI managed controller on OpenShift and plan to “turn on HA …
How to Implement Multi-Tenancy on OpenShift Using Project Templates, ResourceQuotas, and LimitRanges

How to Implement Multi-Tenancy on OpenShift Using Project Templates, ResourceQuotas, and LimitRanges

In this blog post, I will walk you through how to implement multi-tenancy on OpenShift using project templates, ResourceQuotas, and …
How to Install Docker Resource Usage Extension

How to Install Docker Resource Usage Extension

how Kubernetes assigns pods to nodes

How Kubernetes Schedules Pods: A Step-by-Step Guide for Beginners

Kubernetes Ingress Explained

Kubernetes Ingress Explained: How to Manage External Access to Your Services

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

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

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

Part 3: How to Restore and Validate Application Backups in OpenShift with OADP

How to Configure NFS Storage for CloudBees CI Managed Controllers HA on OpenShift

How to Configure NFS Storage for CloudBees CI Managed Controllers HA on OpenShift

Deploy Multi-Node OpenStack using Kolla-Ansible

Deploy Multinode OpenStack using Kolla-Ansible

Install Portainer Extension on Docker Desktop

Install Portainer Extension on Docker Desktop

Kubernetes Resource Optimization with Vertical Pod Autoscaler (VPA)

Kubernetes Resource Optimization with Vertical Pod Autoscaler (VPA)

Install and Run MariaDB as a Docker Container

How to Set Up Alerting in OpenShift 4: Alertmanager, Alert Rules & Notifications

How to Set Up Alerting in OpenShift 4: Alertmanager, Alert Rules & Notifications

Understanding OpenShift Security Context Constraints

Understanding OpenShift Security Context Constraints: The Complete Guide

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

Part 2: How to Backup Applications and Persistent Volumes in OpenShift with OADP

Configure OpenShift 4 Image Registry Persistent Storage with ODF

Configure OpenShift 4 Image Registry Persistent Storage with ODF: 2026 Step-by-Step Guide

Enable User Workload Monitoring in OpenShift 4.20

How to Enable User Workload Monitoring in OpenShift 4.20: Let Developers Monitor Their Apps

nagios docker

Deploy Nagios as a Docker Container

Security

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Install Kismet on Ubuntu 18.04

How to Enable Basic Authentication on ELK Stack

How to Configure Apache Tomcat with HTTPS

Most Popular

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Database, MariaDB, MySQL, phpMyAdmin

Install phpMyAdmin with Nginx on Debian 10 Buster

install and setup ceph storage cluster
Storage, Ceph, HowTos

Configure and Use Ceph Block Device on Linux Clients

KVM Online Disk Expansion: How to Extend Virtual Disks Without Downtime
Storage, HowTos

KVM Online Disk Expansion: How to Extend Virtual Disks Without Downtime

Deploy ELK Stack 8 on Docker Containers
Monitoring, Containers, Docker, Elastic Stack, HowTos

Deploy ELK Stack 8 Cluster on Docker Containers

HowTos, Containers, Docker

Install and Run MariaDB as a Docker Container

install ntp client on Linux
HowTos

Install and Configure NTP Client on Ubuntu/Debian systems

How to Enable Secure Shell (SSH) server on OPNsense

How to Set Up Your Own Proxy

Install Wazuh Agent on Rocky Linux 8

Install and Setup VeraCrypt on Rocky Linux

Install Pritunl VPN client on Debian/Ubuntu

Install FortiClient VPN Client on Ubuntu 20.04/Ubuntu 18.04

How To Ensure Top Security For Your Business

How to Encrypt Files and Folders with eCryptFS on Ubuntu 18.04

Install and Configure AIDE on Ubuntu 18.04

Install and Setup Wazuh Server in CentOS 8/Fedora 32

Install MISP on Ubuntu 24.04/Ubuntu 22.04/Ubuntu 20.04

How to Install and Configure DVWA Lab on Ubuntu 18.04 server

MONITORING

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monitor docker containers using nagios

How to Monitor Docker Containers using Nagios

Kifarunix

Can Nagios monitor docker container? Yes, in this tutorial, you will learn how to monitor …

Install OSSEC HIDS Agent

Install OSSEC Agent on CentOS 8

koromicha

This guide presents a step-by-step tutorial on how to install OSSEC Agent on CentOS 8. …

Install Telegraf on Fedora 30/Fedora 29

koromicha

In this guide, we are going to learn how to install Telegraf on Fedora 30/Fedora …

Install Filebeat on FreeBSD

Install Filebeat on FreeBSD

koromicha

Follow through this guide to learn how to install Filebeat on FreeBSD. Installing Filebeat on …

Install Sensu Go Ubuntu/debian/rocky

Install Sensu Go on Debian 11

koromicha

Follow through this tutorial to learn how to install Sensu Go on Debian 11. Sensu …

Send Windows logs to Elastic Stack using Winlogbeat and Sysmon

Send Windows logs to Elastic Stack using Winlogbeat and Sysmon

koromicha

In this guide, we are going to learn how to send Windows logs to Elastic …

Install Osquery on Ubuntu 20.04

Install Osquery on Ubuntu 20.04

koromicha

In this guide, we are going to learn how to install osquery on Ubuntu 20.04. …

Install Prometheus Node Exporter on CentOS 8

koromicha

In this guide, you will learn how to install Prometheus Node Exporter on CentOS 8. …

Setup Multi-node Elasticsearch Cluster

How to Setup Multinode Elasticsearch 9 Cluster

Kifarunix

Follow through this tutorial to learn how to setup multinode Elasticsearch 9 cluster. As of …

Monitor Linux Hosts using Nagios check_by_ssh Plugin

Monitor Linux Hosts using Nagios check_by_ssh Plugin

koromicha

Welcome to our tutorial on how to monitor Linux Hosts using Nagios check_by_ssh plugin. This …

Install and Configure Prometheus on Debian 9

In this guide, we are going to learn how to install and configure Prometheus on Debian 9. Prometheus is a …

Install Grafana Metrics Monitoring Tool on Debian 9

Hello guys, we are at it again on how to install Grafana metrics monitoring tool on Debian 9. Our previous …

Installing Linux Dash with Nginx on Ubuntu 18.04 LTS

This guides presents a simple way installing Linux Dash with Nginx on Ubuntu 18.04 LTS. Linux Dash is an opensource …

NETWORKING

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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 …
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, …
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 …
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 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 …
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 …
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 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 …
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 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 …

STORAGE

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How to Deploy Ceph Storage Cluster on AlmaLinux

Backup Windows System via SMB Using BackupPC

Install and Setup Rsyslog Server on Ubuntu 22.04

How to Deploy Ceph Storage Cluster on Rocky Linux

How to Start Stop or Restart Ceph Services

Install ownCloud Server on Debian 10 Buster

Install and Configure NFS Server on Rocky Linux 8

How to Reset Ceph Dashboard Admin Password

VIRTUALIZATION

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Install Linux Mint 21 on VirtualBox

Easy way to Install Linux Mint 21 on VirtualBox

Kifarunix

How to install Linux Mint Cinnamon virtual machine? Follow through this tutorial to learn an …

install ubuntu 25.04 on virtualbox

How to Install Ubuntu 25.04 on VirtualBox: A Step-by-Step Guide

Kifarunix

Wondering how to install Ubuntu 25.04 on VirtualBox? Ubuntu 25.04, codenamed “Plucky Puffin,” is the …

perform unattended VM installation on VirtualBox 7

Perform Unattended VM Installation on VirtualBox 7

Kifarunix

What is VirtualBox unattended installation? Follow through this tutorial to learn how to perform unattended …

Install VirtualBox Guest Additions on Ubuntu 18.04

Jay Decrame

In this guide, we are going to learn how to install VirtualBox Guest Additions on …

Create and Manage VirtualBox VM Groups

Create and Manage VirtualBox VM Groups

koromicha

In this tutorial, you will learn how to create and manage VirtualBox vm groups. In …

AutoStart VirtualBox VMs on System Boot on Linux

AutoStart VirtualBox VMs on System Boot on Linux

koromicha

In this guide, we are going to learn how to autostart VirtualBox VMs on system …

shrink KVM virtual machine LVM partitioned disk

Shrink KVM Virtual Machine LVM Partitioned Disk

Kifarunix

Is it possible to shrink KVM virtual machine LVM partitioned disk? Well, to be honest, …

Upgrade Ubuntu 18.04 to Ubuntu 20.04

koromicha

Well, Ubuntu 20.04, codenamed Focal Fossa is now available for testing with official version being …

Install Debian 12 on VirtualBox

Install Debian 12 on VirtualBox

Kifarunix

Follow through this tutorial to learn how to install Debian 12 on VirtualBox. The Debian …

clone kvm virtual machines

How to Clone KVM Virtual Machines

koromicha

What is the quick and easy way to clone KVM virtual machines? In this guide, …

Screenshot from 2021 01 13 22 50 51 1

Install VirtualBox 6.1 on Fedora 33

In this tutorial, you will learn how to install VirtualBox 6.1 on Fedora 33. VirtualBox 6.1 is available for installation …
Easy Way to Extend KVM Virtual Machine Disk Size

Easy Way to Extend KVM Virtual Machine Disk Size

This is a simple tutorial on an easy way to extend KVM virtual machine disk size. Disk usage in a …
Install KVM on Debian 12

Install KVM on Debian 12

In this tutorial, you will learn how to install KVM on Debian 12. KVM, an acronym for Kernel-based Virtual Machine, …

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