Rsyslog, HowTos, Syslog

Setup Rsyslog Server on Ubuntu 20.04

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koromicha
HowTos, HAProxy, Load Balancers

Install and Setup HAProxy on Ubuntu 20.04

HowTos, Ansible, Automation, Automation

How to Deploy Filebeat using Ansible

Nessus, Security, Vulnerability Scanners

Creating Custom Nessus Scan Policy Templates

Containers

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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 …
Serverless Computing with Linux on AWS Lambda

Serverless Computing with Linux on AWS Lambda

Introduction In today’s rapidly evolving technological landscape, serverless computing has emerged as a game-changer, redefining the way developers build and …
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 …
Configuring Shared Filesystem for Kubernetes on Rook Ceph Storage

Configuring Shared Filesystem for Kubernetes on Rook Ceph Storage

How to Deploy an Application in a Docker Swarm Cluster

How to Deploy an Application in a Docker Swarm Cluster

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

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

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

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

Kubernetes Ingress Explained

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

check Docker container RAM and CPU usage

How to Check Docker Container RAM and CPU Usage

nagios docker

Deploy Nagios as a Docker Container

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

Deploy an OpenShift Cluster Using Agent-Based Installer

How to Deploy an OpenShift Cluster Using Agent-Based Installer (Bootable ISO, KVM & Bare Metal)

Setup Kubernetes Cluster on Ubuntu

Install and Setup Kubernetes Cluster on Ubuntu 24.04

Understanding Deployments in Kubernetes: A Comprehensive Guide

Understanding Deployments in Kubernetes: A Comprehensive Guide

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

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

Deploy Apps on OpenShift Using BuildConfig

How to Deploy Apps on OpenShift Using BuildConfig: A Step-by-Step Guide (2025)

Kubernetes Cluster on RHEL 9

Install and Setup Kubernetes Cluster on RHEL 9

deploy multinode OpenShift cluster using UPI

How to Deploy Multinode OpenShift Cluster Using UPI/User Provisioned Infrastructure

Security

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Setup Squid Proxy Authentication on Ubuntu 18.04/Fedora 29/28/CentOS 7

Securely SSH to Remote Host via Multiple Jump Hosts

Install and Setup Nessus Scanner on Ubuntu 20.04

Most Popular

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HowTos, FreeBSD, LAMP Stack, LEMP Stack, PHP

Install PHP 7.4 on FreeBSD 12

Install DBeaver on Debian/Ubuntu
HowTos

Install DBeaver on Ubuntu 22.04/Ubuntu 20.04

Install and Configure VNC Server on CentOS 8
HowTos

Install VNC Server on Rocky Linux 8

install-automad-cms-ubuntu-debian
HowTos, CMS

Install Automad CMS on Debian 10/Ubuntu 18.04

HowTos, PHP

Install PHP 7.4 on CentOS 8

kubernetes states: declared vs actual state
Kubernetes, Containers, HowTos

Understanding Kubernetes States: Declared vs Observed states Explained

How to Install and Use WPScan WordPress Vulnerability Scanner Ubuntu 18.04

Integrate sysPass with OpenLDAP for Authentication

How to Install and Setup Tailscale VPN on Debian 12

Configure IPSEC VPN using StrongSwan on Ubuntu 18.04

What Is an SSL Certificate and How Can It Benefit Your Business?

Install Fleet Osquery Manager on Rocky Linux

Detect Changes to Critical Files in Linux using Auditbeat and ELK

Install and Configure Wazuh Manager on Ubuntu 22.04

Install Modsecurity with Nginx on Rocky Linux 8

Monitor SSL/TLS Certificate Expiry with Prometheus and Grafana

How to Install and Setup GRR clients on Ubuntu 18.04/Debian 9

Fix AlienVault HIDS Events Displaying 0.0.0.0 as IP Address

MONITORING

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Monitor Docker Swarm and Container metrics using Metricbeat

Monitor Docker Swarm and Container metrics using Metricbeat

Kifarunix

Is it possible to monitor Docker Swarm and container metrics using Metricbeat? Yes, of course! …

Install Apache Kafka on Debian 12

Easy Steps: Install Apache Kafka on Debian 12

Kifarunix

This guide provides a step by step tutorial on how to easily install Apache Kafka …

Install and Configure Telegraf on FreeBSD 12

koromicha

Welcome to our guide on how to install and configure Telegraf on FreeBSD 12. If …

Install Elastic Stack 7 on Fedora 30/Fedora 29/CentOS 7

koromicha

In this guide, we are going to learn how to install Elastic Stack 7 on …

Install and Configure Zabbix

Install Zabbix Server on Debian 10 Buster

koromicha

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

kibana

Install ELK Stack on Ubuntu 20.04

gen_too

Welcome to our guide on how to install ELK Stack on Ubuntu 20.04. ELK, currently …

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 …

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 …

filebeat

Easy way to Configure Filebeat-Logstash SSL/TLS Connection

koromicha

In this tutorial, we will show you an easy way to configure Filebeat-Logstash SSL/TLS Connection. …

Install Grafana on Ubuntu

Install Grafana Data Visualization Tool on Ubuntu 18.04

koromicha

In this guide, we are going to learn how to install Grafana Data Visualization Tool …

ntopng

Install ntopng on Rocky Linux 8

This guide will take you through how to install ntopng on Rocky Linux 8. ntopng is a high performance web-based …
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 …
How to Measure CPU Usage in Linux

How to Measure CPU Usage in Linux

This simple guide will take you through how to Measure CPU Usage in Linux. CPU is critical to every other …

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 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 …
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 …

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 …
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 …
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 …
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 …
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 …
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 …

STORAGE

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Exploring LVM: Learn About Common PV, LV, and VG Attributes | LVM Attributes

How to Install Duplicati Backup Client on Ubuntu 22.04

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

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

Easy Way to Extend KVM Virtual Machine Disk Size

Install and Configure BackupPC on CentOS 8

Configuring Shared Filesystem for Kubernetes on Rook Ceph Storage

Part 1: Integrate OpenStack with Ceph Storage Cluster

VIRTUALIZATION

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Create and Upload Custom Linux Image into OpenStack

Create and Upload Custom Linux Image into OpenStack

koromicha

In this tutorial, you will learn how to create and upload custom Linux image into …

Install VirtualBox Guest Additions on Rocky Linux 8

Install VirtualBox Guest Additions on Rocky Linux 8

koromicha

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

How to Clone a Virtual Machine on VMware ESXi

koromicha

Having trouble with cloning a virtual machine in VMware ESXi? Worry no more. This guide …

wubuntu

Install Wubuntu Linux on VirtualBox

Kifarunix

Follow through this guide to learn how to install Wubuntu Linux on VirtualBox. According to …

Install VirtualBox Guest Additions on Debian 10 Buster

koromicha

So if you have installed Debian 10 Buster on VirtualBox, you might have realized that …

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 …

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

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

Kifarunix

In this guide, you will to learn how to deploy all-in-one OpenStack with Kolla-Ansible on …

bullseye 11

Install Debian 11 on VirtualBox

gen_too

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

Easily Access Shared Folder on Linux VirtualBox VM

Easily Access Shared Folder on Linux VirtualBox VM

koromicha

In this tutorial, you will learn how to setup and easily access shared folder on …

How to Install FreeBSD 12 on VirtualBox

koromicha

Hello there, welcome to our guide on how to install FreeBSD 12 on VirtualBox. FreeBSD …

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 …
How to Install Docker Resource Usage Extension

How to Install Docker Resource Usage Extension

How can you install Resource usage extension on Docker desktop? In this guide, you will learn how to install Docker …

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

Hello there, welcome to this tutorial on how to upload an ISO file to VMware ESXi using vSphere client. Well, …

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