HowTos

Install Microsoft Teams App on Fedora 32/31/30

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koromicha
Containers, HowTos, Kubernetes, OpenShift

How to Deploy Single Node OpenShift (SNO) Using the Agent-Based Installer on KVM

HowTos, AWS, Cloud, Containers

Serverless Computing with Linux on AWS Lambda

Monitoring, HowTos, Security

Install Fleet Osquery Manager on Rocky Linux

OpenShift, Containers, Firewall, HowTos, Kubernetes, Networking, Security

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

Containers

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backup and restore kubernetes etcd cluster

Disaster Recovery in Kubernetes: etcd Backup and Restore with etcdctl and etcdutl

In this blog post, we will dive into Kubernetes disaster recovery strategies, backup and restore etcd, using etcdctl and etcdutl …
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 …
using configmaps in kubernetes

Step-by-Step Guide to Using ConfigMaps in Kubernetes

This tutorial provides a step-by-step guide to using ConfigMaps in Kubernetes. ConfigMaps in Kubernetes are a powerful tool for managing …
Install Fedora CoreOS on KVM Using an ISO File

Install Fedora CoreOS on KVM Using an ISO File: A Step-by-Step Guide

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

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

kubernetes states: declared vs actual state

Understanding Kubernetes States: Declared vs Observed states Explained

install portainer on Linux

Install Portainer on Ubuntu 22.04

Deploy Ceph Storage Cluster in Kubernetes using Rook

Deploy Ceph Storage Cluster in Kubernetes using Rook

automate OpenShift Deployments with GitLab CI/CD pipelines

Automate OpenShift Deployments with GitLab CI/CD Pipelines

Monitor Docker Swarm and Container metrics using Metricbeat

Monitor Docker Swarm and Container metrics using Metricbeat

install docker ce

Install and Use Docker CE on CentOS 8

install docker ce on debian 12

How to Install Docker CE on Debian 12

Deploy NRPE Agent as a Docker container

Deploy NRPE Agent as a Docker Container

Kubernetes cluster high availability

Setup Highly Available Kubernetes Cluster with Haproxy and Keepalived

Setup Kubernetes Cluster on Ubuntu

Setup Kubernetes Cluster on Ubuntu 22.04/20.04

How to Install Docker Desktop on Kali Linux

How to Install Docker Desktop on Kali Linux

Step-by-Step Guide on Deploying an Application on Kubernetes Cluster

Step-by-Step Guide on Deploying an Application on Kubernetes Cluster

Kubernetes Ingress Explained

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

Security

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Install and Configure OpenVPN Client on Rocky Linux 8

Why Docker Hardened Images Are a Game-Changer for Software Supply Chain Security

Setup OpenVPN Server on Rocky Linux 8

Most Popular

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Benefits of Managed IT Services
HowTos

Top 5 Benefits of Managed IT Services You Must Know About

HowTos, Monitoring, OpenVPN, Security, VPN

How to Monitor OpenVPN Connections using openvpn-monitor tool

Safe And Secured Platforms To Buy Bitcoin In 2022
HowTos

Safe And Secured Platforms To Buy Bitcoin In 2022

how to automate virtual machine installation on VirtualBox
Virtualization, HowTos, VirtualBox

Automate Virtual Machine Installation on VirtualBox

ceph higly available admin node
Storage, Ceph, HowTos

How to Setup Ceph Admin Node in High Availability

How to Configure OpenStack Networks for Internet Access
HowTos, OpenStack, Virtualization

How to Configure OpenStack Networks for Internet Access

Install Wazuh SIEM Server on Ubuntu 24.04

Install Wazuh Agent on Rocky Linux 8

Install and Setup Velociraptor on Ubuntu 20.04

Install and Configure Wazuh Manager on Ubuntu 22.04

How to Install OSSEC Agent on Mac OS

How to Protect Single User Mode with Password in Ubuntu 18.04

Install Fleet Osquery Manager on Oracle Linux

Install sysPass Password Manager on Rocky Linux

Configure Site-to-Site IPSec VPN on pfSense and Libreswan

How to Install Wazuh Agent on RHEL 8/9/10

Setup IPSec Site-to-Site VPN Tunnel on pfSense

How to Set Up Your Own Proxy

MONITORING

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Install and Setup Nagios

How to Install Nagios Server on Ubuntu 24.04

Kifarunix

In this guide, we will provide a step-by-step tutorial on how to install Nagios Server …

Monitor OpenVPN Connections with Prometheus and Grafana

koromicha

Welcome to our tutorial on how to monitor OpenVPN connections with Prometheus and Grafana. Grafana is …

How to Configure Centralized Logging in OpenShift with LokiStack and ODF

How to Configure Centralized Logging in OpenShift with LokiStack and ODF

Kifarunix

In this blog post, we will cover how to configure centralized logging in OpenShift with …

Install InfluxDB on Fedora 30/Fedora 29

koromicha

Welcome to our guide on how to Install InfluxDB on Fedora 30/Fedora 29. InfluxDB is …

filebeat

Install Filebeat on Fedora 30/Fedora 29/CentOS 7

Jay Decrame

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

check Docker container RAM and CPU usage

How to Check Docker Container RAM and CPU Usage

Kifarunix

How to check Docker CPU and memory usage? In this tutorial, you will learn how …

install icinga2/icingaweb2

Install Icinga 2 and Icinga Web 2 on Ubuntu 20.04

koromicha

In this tutorial, we are going to learn how to install Icinga 2 and Icinga …

nagios

Install Nagios on Debian 11

gen_too

In this guide, we are going to learn how to install Nagios on Debian 11. Nagios is …

Install TheHive on Ubuntu 22.04/Ubuntu 20.04

Install TheHive on Ubuntu 22.04/Ubuntu 20.04

koromicha

Follow through this tutorial to learn how to install TheHive on Ubuntu 22.04/Ubuntu 20.04 server. …

wazuh agents

Install Wazuh Agent on Rocky Linux 8

gen_too

In this tutorial, you will learn how to install Wazuh agent on Rocky Linux 8. …

Install and Configure Zabbix

Install Zabbix Server on Ubuntu 22.04

In this guide, we are going to learn how to install Zabbix server on Ubuntu 22.04. Zabbix is an enterprise …
Install OSSEC HIDS Agent

Install OSSEC Agent on CentOS 8

This guide presents a step-by-step tutorial on how to install OSSEC Agent on CentOS 8. OSSEC is an Open Source …
Install TheHive on Ubuntu 22.04/Ubuntu 20.04

Install TheHive on Ubuntu 22.04/Ubuntu 20.04

Follow through this tutorial to learn how to install TheHive on Ubuntu 22.04/Ubuntu 20.04 server. TheHive, according to their documentation …

NETWORKING

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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 …
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 …
Useful Facts About Setting Up Mobile Rugged Servers

Useful Facts About Setting Up Mobile Rugged Servers

Modern warfare is evolving. Having boots on the ground is still the most important component of winning any conflict, however, …
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 …
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, …
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 …

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 …
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 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 …
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 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 …

STORAGE

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Setup Software RAID on Ubuntu 20.04

How to Integrate MinIO S3 Storage with Kubernetes/OpenShift

Install and Setup Rsyslog Server on Ubuntu 22.04

Setup GlusterFS Distributed Replicated Volume on CentOS 8

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

Install and setup GlusterFS on Ubuntu 22.04/Ubuntu 20.04

Install ownCloud Server on Debian 10 Buster

Extend OpenShift CoreOS /sysroot Root Filesystem

VIRTUALIZATION

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Install VirtualBox Guest Additions on Ubuntu 21.04

Install VirtualBox Guest Additions on Ubuntu 21.04

koromicha

If you have installed Ubuntu 21.04 on VirtualBox, you realize that it is not in …

Install KVM on Debian 12

Install KVM on Debian 12

Kifarunix

In this tutorial, you will learn how to install KVM on Debian 12. KVM, an …

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 VirtualBox Guest Additions on CentOS 8

koromicha

In our previous guide, we learnt how to Install CentOS 8 on VirtualBox. However, it …

Install VirtualBox Guest Additions on Fedora 31/32

koromicha

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

Resize Root Partition of VirtualBox VM Snapshot

koromicha

You are running a virtual machine on a VirtualBox with multiple snapshots and you want …

Install VirtualBox 6.1 on Ubuntu 18.04 Desktop

koromicha

VirtualBox 6.1.0 which is a major update of VirtualBox was released December 10 2019 with quite …

How to Upgrade VirtualBox 5.2 to VirtualBox 6.0 on Ubuntu 16.04

koromicha

In this tutorial, we are going to learn how to Upgrade VirtualBox 5.2 to VIrtualBox …

kali linux 2021.3 desktop

Install VirtualBox Guest Additions on Kali Linux 2021.3

gen_too

In this tutorial, you will learn how to install VirtualBox guest additions on Kali Linux …

How to Upload ISO File to VMware ESXi Datastore using vSphere Client

koromicha

Hello there, welcome to this tutorial on how to upload an ISO file to VMware …

How to Deploy WordPress as a Docker Container

How to Deploy WordPress as a Docker Container

Can you run WordPress in a Docker container? Yes, follow this tutorial to learn how to deploy WordPress as a …
kali linux 2021.3 desktop

Install Kali Linux 2020.3 on VirtualBox

In this tutorial, you will learn how to install Kali Linux 2020.3 on VirtualBox. Kali Linux is an Advanced Penetration …
how to automate virtual machine installation on VirtualBox

Automate Virtual Machine Installation on VirtualBox

In this tutorial, you will learn how to automate virtual machine installation on VirtualBox. Many times, not once, not twice …

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