HowTos, Monitoring

Install and Configure SNMP on Rocky Linux 8/9

BY
koromicha
Remote Desktop, Desktop Environment, HowTos

Control NoMachine Ports on Firewall

Monitoring, Elastic Stack, HowTos, Security, Wazuh

Install Wazuh Manager with ELK on Debian 12

HowTos

Install WordPress 5.x with Apache on Fedora 29/Fedora 28

HowTos, RHEL

How to Use RHEL 10 Lightspeed AI to Simplify Linux Administration Tasks

Containers

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upgrade openshift 4

How to Upgrade OpenShift Cluster: Seamless Steps for Success

In this blog post, I’ll walk you through a flawless step-by-step guide on how to upgrade OpenShift Cluster, from pre-update …
Creating Users in Kubernetes

Kubernetes User Management: Creating Users, Groups and Service Accounts

In this blog post, we will take you through Kubernetes user management: creating users, groups and service accounts. Kubernetes came …
Install Helm on Kubernetes Cluster

Step-by-Step Guide: How to Install Helm on Kubernetes Cluster

In this tutorial, we will provide you with a step by step guide on how to install Helm on Kubernetes …
deploy HAProxy as a Docker container

Deploy HAProxy as a Docker Container

kubernetes states: declared vs actual state

Understanding Kubernetes States: Declared vs Observed states Explained

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

nagios docker

Deploy Nagios as a Docker Container

How to Integrate MinIO S3 Storage with Kubernetes/OpenShift

How to Integrate MinIO S3 Storage with Kubernetes/OpenShift

StatefulSets in Kubernetes: Everything You Need to Know

StatefulSets in Kubernetes: Everything You Need to Know

Install Minikube on Debian 12

Step-by-Step Tutorial: Install Minikube on Debian 12

OpenShift Builds and BuildConfig

OpenShift Builds and BuildConfig Essentials: A Comprehensive Guide

How to Migrate ODF from Worker Nodes to Dedicated Storage Nodes on OpenShift 4.x

How to Migrate ODF from Worker Nodes to Dedicated Storage Nodes on OpenShift 4.x

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

What are the core concepts in Kubernetes?

What are the core concepts in Kubernetes?

monitor Docker containers metrics using Grafana

Monitor Docker Containers Metrics using Grafana

Install Kubernetes Dashboard on Ubuntu

Easy Way to Install Kubernetes Dashboard on Ubuntu 22.04/20.04

kubernetes drain vs cordon nodes

Kubernetes Nodes Maintenance: Drain vs. Cordon Demystified

role-based access control in kubernetes

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

Kubernetes Cluster on RHEL 9

Install and Setup Kubernetes Cluster on RHEL 9

Security

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How to Install RKHunter (RootKit Hunter) On Ubuntu 18.04

Setup OpenVPN Server on CentOS 8

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

Most Popular

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Deploy an OpenShift Cluster Using Agent-Based Installer
Containers, HowTos, Kubernetes, OpenShift

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

openldap sssd
Directory Server, HowTos, OpenLDAP

Configure OpenLDAP SSSD client on CentOS 6/7

Install GVM 21.4 on Kali Linux
Security, HowTos, OpenVAS, Vulnerability Scanners

Install GVM 21.4 on Ubuntu 20.04

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

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

How to Upgrade ELK Stack 7.x to ELK Stack 8.x
Monitoring, Elastic Stack, HowTos

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

6 Human Resource Management Basics for Every HR
HowTos

6 Human Resource Management Basics for Every HR

Install GVM 21.04 on Rocky Linux 8

How to Install RTIR Module on Request Tracker [2025]

Install Passbolt Password Manager on Rocky Linux 8

Install and Configure NAXSI Nginx WAF on Ubuntu 18.04 LTS

Install ModSecurity 3 with Apache in a Docker Container

Configure IPSEC VPN using StrongSwan on Ubuntu 18.04

How to Protect SSH Server Authentication with Fail2ban Ubuntu 18.04

Install GVM 21.4 on Ubuntu 20.04

Send Alert When ClamAV Finds Infected Files on Linux Systems

Why Creating a Secure Password is Crucial

Easily Integrate Linux Malware Detect with ClamAV

How to Enable Basic Authentication on ELK Stack

MONITORING

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Install and Configure Prometheus on Fedora 29/Fedora 28

koromicha

In this guide, we are going to learn how to install and configure Prometheus on …

Configure Filebeat 8 to Write Logs to Specific Index

Configure Filebeat 8 to Write Logs to Specific Index

Kifarunix

This guide will take you through how to configure Filebeat 8 to write logs to …

Enable HTTPS Connection Between Elasticsearch Nodes

Enable HTTPS Connection Between Elasticsearch Nodes

gen_too

In this tutorial, you will learn how to enable HTTPS connection between Elasticsearch nodes. One …

nagios rocky

Install Nagios Plugins on Rocky Linux 8

gen_too

This guide will walk you through how to install Nagios Plugins on Rocky Linux 8. …

filebeat

How to run Multiple Filebeat Instances in Linux

gen_too

In this tutorial, you will learn how to run multiple filebeat instances in Linux system. …

Metricbeat System Host overview ECS Elastic

Monitor Linux System Metrics with ELK Stack

gen_too

In this tutorial, you will learn how to monitor Linux system metrics with ELK Stack. …

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. …

Configure Grafana Email Alerting

Configure Grafana Email Alerting

gen_too

In this tutorial, you will learn how to configure Grafana Email alerting. Grafana alerting allows …

install and configure snmp on Linux

How to Configure SNMP Version 2c on Debian 9

koromicha

Welcome to our tutorial on how to configure SNMP version 2c on Debian 9. If …

Monitor Squid logs with Grafana and Graylog

koromicha

In this guide, we are going to learn how to monitor squid logs with Grafana …

Install and Configure Telegraf on FreeBSD 12

Welcome to our guide on how to install and configure Telegraf on FreeBSD 12. If you are looking at collecting …

Install InfluxDB on Fedora 30/Fedora 29

Welcome to our guide on how to Install InfluxDB on Fedora 30/Fedora 29. InfluxDB is an open source time series …
Install and Configure Zabbix

Install Zabbix Server on Rocky Linux

In this guide, we are going to learn how to install Zabbix server on Rocky Linux. Zabbix is an enterprise …

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 …
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 …
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 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, …
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 …
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 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 …

STORAGE

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Step-by-Step: Provisioning Kubernetes Persistent Volumes with CephFS CSI Driver

Backup Windows System with BackupPC Using Rsyncd

Configure ownCloud OpenLDAP Authentication

Configuring Shared Filesystem for Kubernetes on Rook Ceph Storage

Quick Way to Setup Samba File Server on Debian 10

How to Encrypt Data at Rest on Ceph Cluster OSD

Install and Setup Rsyslog Server on Ubuntu 22.04

How Install and Configure iSCSI Storage server on CentOS 7

VIRTUALIZATION

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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, …

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 …

genymotion login

Install Genymotion Android Emulator on Ubuntu 20.04

gen_too

Follow through this guide to learn how to install Genymotion Android emulator on Ubuntu 20.04. …

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 …

how to automate virtual machine installation on VirtualBox

Automate Virtual Machine Installation on VirtualBox

koromicha

In this tutorial, you will learn how to automate virtual machine installation on VirtualBox. Many …

Install Kali Linux 2022.2 on VirtualBox

Install Kali Linux 2022.2 on VirtualBox

koromicha

In this tutorial, you will learn how to install Kali Linux 2022.2 on VirtualBox. Kali Linux is …

install portainer on Linux

Install Portainer on Rocky Linux

koromicha

In this tutorial, you will learn how to install Portainer on Rocky Linux. Portainer is a …

Install NixOS with Gnome Desktop on VirtualBox

Install NixOS with Gnome Desktop on VirtualBox

Kifarunix

In this tutorial, you will learn how to install NixOS with Gnome Desktop on VirtualBox. …

Start and Stop KVM Virtual Machines from Command Line

Start and Stop KVM Virtual Machines from Command Line

koromicha

This guide will take you through how to start and stop KVM virtual machines from …

Install Fedora 30 Workstation on VirtualBox

koromicha

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

How to Install FreeBSD 12 on VirtualBox

Hello there, welcome to our guide on how to install FreeBSD 12 on VirtualBox. FreeBSD can run well in a …
kali linux 2021.3 desktop

Easily Install Kali Linux 2021.3 on VirtualBox

In this tutorial, you will learn how to install Kali Linux 2021.3 on VirtualBox. Kali Linux is an Advanced Penetration Testing Debian-based …
Install IBM QRadar Community Edition SIEM on VirtualBox

How to Install IBM QRadar Community Edition SIEM on VirtualBox

In this tutorial, we are going to learn how to install IBM QRadar Community Edition SIEM on VirtualBox. We will be …

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