HowTos, Nginx, Security, WAF, Web Servers

Install and Configure NAXSI Nginx WAF on Ubuntu 18.04 LTS

BY
koromicha
HowTos, Directory Server, OpenLDAP

Install and Setup phpLDAPadmin on Ubuntu 20.04

HowTos, Linux Commands, Monitoring

Install Sysdig System Visibility Tool on Ubuntu 22.04

HowTos, , Sendmail, Ubuntu 18.04

Install and Setup iRedMail Mail Server on Ubuntu 22.04/20.04

HowTos

Install and Setup i3 Windows Manager on Debian 11

Containers

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Safely Upgrade Kubeadm Kubernetes Cluster: A Step-by-Step Guide

Safely Upgrade Kubeadm Kubernetes Cluster: A Step-by-Step Guide

In this guide, we’ll walk you through the step-by-step process of how to safely upgrade kubeadm Kubernetes cluster. Upgrading a …
kubernetes kubeconfig

What is Kubeconfig File in a Kubernetes Cluster?

What is kubeconfig file in a Kubernetes Cluster? If you are just starting out your journey in Kubernetes, it is …
nagios docker

Deploy Nagios as a Docker Container

How to install Nagios core in Docker? In this tutorial, you will learn how to deploy Nagios as a Docker …
Understanding Deployments in Kubernetes: A Comprehensive Guide

Understanding Deployments in Kubernetes: A Comprehensive Guide

Install and Use Docker on Debian 10 Buster

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

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

install-and-configure-openshift-odf-ocp

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

Install Minikube on Debian 12

Installing Minikube on Ubuntu 24.04

Deploy All-In-One OpenStack with Kolla-Ansible on Ubuntu 18.04

Deploy All-In-One OpenStack with Kolla-Ansible on Ubuntu 18.04

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

Creating Users in Kubernetes

Kubernetes User Management: Creating Users, Groups and Service Accounts

Setup Three Node Docker Swarm Cluster on Ubuntu

How to Setup Three Node Docker Swarm Cluster on Ubuntu 22.04

Monitor Docker Swarm Node Metrics using Grafana

Monitor Docker Swarm Node Metrics using Grafana

Deploy Ceph Storage Cluster in Kubernetes using Rook

Deploy Ceph Storage Cluster in Kubernetes using Rook

nagios docker

Deploy Nagios as a Docker Container

StatefulSets in Kubernetes: Everything You Need to Know

StatefulSets in Kubernetes: Everything You Need to Know

Enable User Workload Monitoring in OpenShift 4.20

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

How to Install Docker Desktop on Kali Linux

How to Install Docker Desktop on Kali Linux

Deploy All-In-One OpenStack with Kolla-Ansible on Ubuntu 22.04

Deploy All-in-One OpenStack with Kolla-Ansible on Ubuntu 22.04

Security

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Basic Operation of Firewalld in Linux

How to Install Osquery on Ubuntu 18.04

Install OpenVPN Server on Debian 11/Debian 10

Most Popular

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kali linux 2021.3 desktop
Virtualization, HowTos, VirtualBox

Install VirtualBox Guest Additions on Kali Linux 2021.3

install and configure snmp on Linux
Monitoring, HowTos, SNMP

Install and Configure SNMP on CentOS 8

ossec
Monitoring, HowTos, OSSEC

Install OSSEC Agent on Rocky Linux 8

role-based access control in kubernetes
Containers, HowTos, Kubernetes, Security

Introduction to Role-Based Access Control (RBAC) in Kubernetes

gradle
HowTos, Automation, Java

Install Gradle on Debian 10/9

HowTos, PHP

Install PHP 7.3.4 on Fedora 30

Integrate Suricata with Wazuh for Log Processing

How to Install RKHunter (RootKit Hunter) On Ubuntu 18.04

Install GVM Vulnerability Scanner on Ubuntu 24.04

Configure LibModsecurity with Nginx on CentOS 8

Protecting Your Privacy: How VPNs Safeguard Your Online Presence

Install sysPass Password Manager on Ubuntu 18.04

How to Install Sophos AntiVirus on Ubuntu 18.04

How to Disable Weak SSH Algorithms on RHEL 8/9/10 (SHA-1 HMACs, SHA-1 Kex, CBC, 3DES)

Install and Setup OpenVPN Server on Ubuntu 20.04

How to Recover Deleted Data on a Linux System

Install OpenVAS 10 (GVM) on Debian 10 Buster

Deploy WordPress using Docker Compose

MONITORING

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Install and Configure Zabbix

Install and Configure Zabbix 4.0 from Source on Fedora 29/Fedora 28/CentOS 7

koromicha

Install Zabbix Run the command below to install the Zabbix daemon binaries (zabbix_server, zabbix_agentd, zabbix_proxy) …

Install Icinga 2 on Debian 10 Buster

koromicha

In this guide, we are going to learn how to install Icinga 2 on Debian …

Delete Specific Records from Elasticsearch Index

Delete Specific Records from Elasticsearch Index

koromicha

This is a simple tutorial on how to search and delete specific records from Elasticsearch …

Install and Setup Nagios

Install and Setup Nagios on Ubuntu 22.04

Jay Decrame

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

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 …

Install Monitorix on Ubuntu 20.04

Install Monitorix on Debian 10

koromicha

This guide provides a step by step tutorial on how to install Monitorix on Debian …

Monitor Docker Swarm Node Metrics using Grafana

Monitor Docker Swarm Node Metrics using Grafana

Kifarunix

How can I monitor Docker swarm node metrics? In this tutorial, you will learn how …

Deploy NRPE Agent as a Docker container

Deploy NRPE Agent as a Docker Container

Kifarunix

In this tutorial, you will learn how to deploy NRPE agent as a Docker container. …

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 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 …

kibana custom ingest pipelines

Create Custom ELK Ingest Pipeline for Custom Log Processing

Follow through this tutorial to learn how create custom ELK ingest pipeline for custom log processing. Elastic Stack is so …

Install Prometheus Node Exporter on CentOS 8

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

Create Squid Logs Extractors on Graylog Server

In this guide, we are going to go over how to create squid logs extractors on Graylog server. If you …

NETWORKING

More

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 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 …
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 …
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 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 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 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 …
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 …
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 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 …
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, …
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 …

STORAGE

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Backup Windows System via SMB Using BackupPC

Install and Configure iSCSI Storage Server on Ubuntu 24.04

Install ownCloud Server on Debian 12

Extend Existing LUKS-Encrypted LVM by Adding Physical Volume

Install and Configure BackupPC on CentOS 8

Deploy Ceph Storage Cluster in Kubernetes using Rook

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

Setup Software RAID on Debian 10

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 …

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 …

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 …

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 Debian 10 Buster on VirtualBox

koromicha

In this guide, we are going to learn how to install Debian 10 Buster on …

virtualbox ubuntu 20.04

Install Latest VirtualBox on Ubuntu 20.04

koromicha

In this tutorial, you will learn how to install latest VirtualBox on Ubuntu 20.04. As …

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 …

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 …

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 …

Install Ubuntu 21.04 Desktop on VirtualBox

Install Ubuntu 21.04 Desktop on VirtualBox

koromicha

In this tutorial, you learn how to install Ubuntu 21.04 Desktop on VirtualBox. The latest …

shrink KVM virtual machine LVM partitioned disk

Shrink KVM Virtual Machine LVM Partitioned Disk

Is it possible to shrink KVM virtual machine LVM partitioned disk? Well, to be honest, this is an almost mission …

Install VirtualBox on Debian 11 Desktop

In this tutorial, you will learn how to install VirtualBox on Debian 11 desktop version. VirtualBox is a general-purpose full …

Install VirtualBox Guest Additions on Debian 10 Buster

So if you have installed Debian 10 Buster on VirtualBox, you might have realized that it is not in full-screen …

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