HowTos, Monitoring, Nagios

Monitor SSL/TLS Certificates Expiry with Nagios

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koromicha
HowTos, Security, Vulnerability Scanners

How to Install and Configure DVWA Lab on Ubuntu 18.04 server

Apache, Web Servers

Remove Apache Test Page on Fedora 30/29

HowTos, chrony, NTP

Setup NTP Client using Chrony on Rocky/Oracle Linux

HowTos, VirtualBox, Virtualization

Install Debian 10 Buster on VirtualBox

Containers

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kubernetes secrets

How to Use Secrets in Kubernetes Applications

In this blog post, you will learn how to use Secrets in Kubernetes applications. In Kubernetes, managing configuration data and …
Deploy ELK Stack 8 Cluster on Docker using Ansible

Deploy ELK Stack 8 Cluster on Docker using Ansible

In this tutorial, you will learn how to deploy ELK stack 8 Cluster on Docker using Ansible, an an open-source …
docker hardened images

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

Docker Hardened Images (DHI), launched on May 19, 2025, are revolutionizing software supply chain security as attacks are projected to …
Understanding OpenShift Security Context Constraints

Understanding OpenShift Security Context Constraints: The Complete Guide

OpenShift Builds and BuildConfig

OpenShift Builds and BuildConfig Essentials: A Comprehensive Guide

How to Deploy an Application in a Docker Swarm Cluster

How to Deploy an Application in a Docker Swarm Cluster

Kubernetes Resource Optimization with Vertical Pod Autoscaler (VPA)

Kubernetes Resource Optimization with Vertical Pod Autoscaler (VPA)

Monitor Docker Swarm Node Metrics using Grafana

Monitor Docker Swarm Node Metrics using Grafana

docker elk

Deploy a Single Node ELK Stack Cluster on Docker Containers

Install and Run MariaDB as a Docker Container

Deploy Ceph Storage Cluster in Kubernetes using Rook

Deploy Ceph Storage Cluster in Kubernetes using Rook

install etcdctl on kubernetes cluster

How to Install etcdctl on Kubernetes Cluster

provision Block Storage for Kubernetes on Rook Ceph Cluster

Provision Block Storage for Kubernetes on Rook Ceph Cluster

Creating Users in Kubernetes

Kubernetes User Management: Creating Users, Groups and Service Accounts

install docker ce

Install and Use Docker CE on CentOS 8

install docker ce

Install Docker on Rocky Linux 8|9

deploy AWX on Kubernetes cluster using AWX Operator

Working Guide: Deploy AWX on Kubernetes Cluster with AWX Operator

monitor docker containers using nagios

How to Monitor Docker Containers using Nagios

upgrade openshift 4

How to Upgrade OpenShift Cluster: Seamless Steps for Success

Security

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Easily Configure Elasticsearch HTTPS Connection

Install and Configure AlienVault OSSIM on VirtualBox

Integrate Portainer with OpenLDAP for Authentication

Most Popular

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What To Do If You Deleted Important Files On Your Hard Drive
HowTos

What To Do If You Deleted Important Files On Your Hard Drive

Monitor Linux Hosts using Nagios check_by_ssh Plugin
Monitoring, AlienVault, HowTos, Nagios

Monitor Linux Hosts using Nagios check_by_ssh Plugin

install apache guacamole
HowTos, Apache, Guacamole, Remote Desktop, Web Servers

How to Install Apache Guacamole on Ubuntu 24.04

Add Controller Nodes into Existing OpenStack Cluster using Kolla-Ansible
HowTos, Ansible, Automation, Cloud Compute, OpenStack

Add Controller Nodes into Existing OpenStack Cluster using Kolla-Ansible

Install and Setup Pritunl VPN Server on Debian
VPN, Security

Install and Setup Pritunl VPN Server on Debian

Bug Tracker, HowTos

Install Mantis Bug Tracker on Ubuntu 20.04

Configure Apache with SSL/TLS Certificates on CentOS 8

The Role of a Strategic Cybersecurity Strategy in Ensuring Business Continuity

Install and Enroll Elastic Agents to Fleet Manager in Linux

Install GVM 21.04 on Rocky Linux 8

Process and Visualize ModSecurity Logs on ELK Stack

Install and Configure Snort 3 on Ubuntu 22.04

Create Locally Trusted SSL Certificates with mkcert on Ubuntu 18.04

Analyze PCAP Files using Malcolm Network Traffic Analysis tool

Basic Operation of Firewalld in Linux

Install Fleet Osquery Manager on Ubuntu 20.04/Ubuntu 22.04

How to Configure NTP Server on pfSense

Installing Metasploit on Ubuntu 18.04 LTS

MONITORING

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Install and Configure Zabbix

Install Zabbix Server on Ubuntu 22.04

koromicha

In this guide, we are going to learn how to install Zabbix server on Ubuntu …

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

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

Kifarunix

How to upgrade Elasticsearch 7 to 8? In this guide, you will learn how to …

install zabbix agent

Compile and Install Zabbix Agent on FreeBSD 12

koromicha

Welcome to our guide on how to compile and install Zabbix Agent on FreeBSD 12. …

Install and Configure Elastic Auditbeat on Ubuntu 18.04

Jay Decrame

In this guide, we are going to learn how to install and configure Elastic Auditbeat …

nxlog-ce

Configure NXLog to Forward System Logs to Rsyslog Server on Ubuntu

koromicha

In this guide, we are going to learn how to configure NXLog to forward system …

Install Kubernetes Dashboard on Ubuntu

Easy Way to Install Kubernetes Dashboard on Ubuntu 22.04/20.04

Kifarunix

This step-by-step guide provides an easy way to install Kubernetes dashboard on Ubuntu 22.04/20.04. Installing …

Install OSSEC Agent on Solaris

How to Install OSSEC Agent on Solaris 11.4

koromicha

In this tutorial, we are going to learn how to install OSSEC agent on Solaris …

Install LibreNMS on Linux

Install LibreNMS on Rocky Linux

koromicha

Follow through this tutorial to learn how to install LibreNMS on Rocky Linux. LibreNMS is …

easily install cacti on Ubuntu 2.04

Easily Install and Setup Cacti on Ubuntu 20.04

koromicha

In this tutorial, you will learn how to easily install and setup Cacti on Ubuntu …

Monitor Process Creation Events on Windows Systems using Wazuh and ELK stack

Monitor Process Creation Events on Windows Systems using Wazuh and ELK stack

gen_too

In this tutorial, you will learn how to monitor process creation events on Windows systems …

Install and Configure Zabbix

Add Hosts to Zabbix Server for Monitoring

This guide will take you through how you can be able to add hosts to Zabbix Server for monitoring. Zabbix …

How to Install Osquery on Ubuntu 18.04

In this guide, we are going to learn how to install osquery on Ubuntu 18.04. Osquery is an opensource tool …
How to Enable and Configure Cortex Analyzers

How to Easily Enable and Configure Cortex Analyzers

Follow through this tutorial to learn how to enable and configure Cortex Analyzers. Cortex is an opensource software created by …

NETWORKING

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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 …
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 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 …
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 …
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 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 …
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 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 …
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 …
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 …

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 …
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 …

STORAGE

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Install and Configure BackupPC on CentOS 8

How to Reduce or Shrink Physical Volume in Linux

How to Configure NFS Server on Ubuntu 18.04

How to Start Stop or Restart Ceph Services

Install ownCloud Server on Debian 11

Extend OpenShift CoreOS /sysroot Root Filesystem

Install Nextcloud with Nginx and SSL/TLS Certificates on CentOS 8

Setup Three Node Ceph Storage Cluster on Ubuntu 18.04

VIRTUALIZATION

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Install OPNsense on VirtualBox

How to Install OPNsense on VirtualBox

koromicha

In this tutorial, we are going to learn how to install OPNsense on VirtualBox. OPNsense …

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 …

Install Fedora 30 Workstation on VirtualBox

koromicha

So Fedora 30 has just been released and you would like to try out the …

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 …

Install VirtualBox on Ubuntu 21.04

Install VirtualBox on Ubuntu 21.04

koromicha

Ubuntu 21.04 code named, Hirsute Hippo is available for testing as of this writing with …

Install Solaris 11.4 on VirtualBox

Easily Install Solaris 11.4 on VirtualBox

Kifarunix

In this tutorial, you will learn on how to easily install Solaris 11.4 on VirtualBox. …

Install VirtualBox Guest Additions on Ubuntu 24.04

Install VirtualBox Guest Additions on Ubuntu 24.04

Kifarunix

In this guide, you will learn how to install VirtualBox guest additions on Ubuntu 24.04. …

Install VirtualBox Guest Additions on Linux Mint 21

Install VirtualBox Guest Additions on Linux Mint 21

Kifarunix

Follow through this tutorial to learn how you can easily install VirtualBox guest additions on …

kali linux 2021.3 desktop

Easily Install Kali Linux 2021.3 on VirtualBox

gen_too

In this tutorial, you will learn how to install Kali Linux 2021.3 on VirtualBox. Kali Linux is …

Install VirtualBox Guest Additions on Fedora 31/32

koromicha

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

How to Configure OpenStack Networks for Internet Access

How to Configure OpenStack Networks for Internet Access

How would you configure OpenStack networks for Internet access? Internet access is crucial for various reasons within an OpenStack environment. …

How to Upgrade VirtualBox 5.2 to VirtualBox 6.0 on Ubuntu 16.04

In this tutorial, we are going to learn how to Upgrade VirtualBox 5.2 to VIrtualBox 6.0 on Ubuntu 16.04. Oracle …
Upgrade VirtualBox 6.x to VirtualBox 7.x on Ubuntu/Debian

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

In this tutorial, you will learn how to upgrade VirtualBox 6.x to VirtualBox 7.x on Ubuntu/Debian. VirtualBox 7.0.0 was officially …

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