HowTos, Linux Commands, vim

Delete Lines Matching Specific Pattern in a File using VIM

BY
koromicha
Monitoring, HowTos, Nagios

Install Nagios on Debian 11

HowTos, Monitoring

Install and Setup NetData on Ubuntu 20.04/18.04

Repository Managers, HowTos

Install Nexus Repository Manager on Debian 10

HowTos, Red Hat Satellite, RHEL, RHEL OS Upgrade

Upgrade RHEL 8 to RHEL 9 using LEAPP with Satellite Server Integration

Containers

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Quickly Install MySQL 8 on Debian 12

Quickly Install MySQL 8 on Debian 12

This guide provides a step-wise tutorial on how to quickly install MySQL 8 on Debian 12. MySQL is a fast, stable and …
How to Install Docker on Ubuntu 24.04

How to Install Docker on Ubuntu 24.04

In this tutorial, we are going to learn how to install Docker on Ubuntu 24.04. Docker is a platform that …
How to Install Docker Desktop on Kali Linux

How to Install Docker Desktop on Kali Linux

How can you install Docker desktop on Linux? In this tutorial, you will learn how to install Docker desktop on …
deploy HAProxy as a Docker container

Deploy HAProxy as a Docker Container

Deploy ELK Stack 8 on Docker Containers

Deploy ELK Stack 8 Cluster on Docker Containers

Configure OpenShift 4 Image Registry Persistent Storage with ODF

Configure OpenShift 4 Image Registry Persistent Storage with ODF: 2026 Step-by-Step Guide

Introduction to Kubernetes: What is it and why do you need it?

Introduction to Kubernetes: What is it and why do you need it?

Extend OpenShift CoreOS /sysroot Root Filesystem

Extend OpenShift CoreOS /sysroot Root Filesystem

Install Fedora CoreOS on KVM Using an ISO File

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

Deploy OpenBao on OpenShift with HA Raft, TLS, and Static Key Auto-Unseal: No Cloud KMS Needed

Deploy OpenBao on OpenShift with HA Raft, TLS, and Static Key Auto-Unseal: No Cloud KMS Needed

Understanding OpenShift Security Context Constraints

Understanding OpenShift Security Context Constraints: The Complete Guide

deploy WordPress using Docker compose

Deploy WordPress using Docker Compose

Install Minikube on Debian 12

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

integrate OpenShift with Active Directory for Authentication

Integrate OpenShift with Active Directory for Authentication

Enable User Workload Monitoring in OpenShift 4.20

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

Install Kubernetes Dashboard on Ubuntu

Easy Way to Install Kubernetes Dashboard on Ubuntu 22.04/20.04

install docker ce

Install Docker CE on Ubuntu 20.04

kubernetes secrets

How to Use Secrets in Kubernetes Applications

How to Install Docker Resource Usage Extension

How to Install Docker Resource Usage Extension

Security

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How to Install and Configure AlienVault HIDs Agent on a Linux Host

How to Increase Your Security With the Help of Advanced Tech Solutions

6 Little-Known Things You Can Do With a VPN

Most Popular

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filebeat
Security, Elastic Stack, HowTos

Configure Filebeat-Elasticsearch Authentication

HowTos, Monitoring, OpenVPN, Security, VPN

How to Monitor OpenVPN Connections using openvpn-monitor tool

Install and Setup PowerDNS on Ubuntu
DNS, HowTos, PowerDNS

Easily Install and Setup PowerDNS on Ubuntu 20.04

HowTos, Virtualization, VMware

How to Clone a Virtual Machine on VMware ESXi

install java
HowTos

7 Reasons Why Learning Java in 2021 is Still a Good Idea

Install Thunderbird mail client on Ubuntu 22.04/Ubuntu 20.04
HowTos,

Install Thunderbird Mail Client on Debian 11/Debian 10

Install and Configure Tripwire Security Monitoring tool on CentOS 8

Install and Setup Suricata on Rocky Linux

Tips For Choosing The Right Antivirus Software

Top 8 Security Skills To Prevent Cyber Threats

How to fix WordPress could not establish a secure connection to WordPress.org

Deploy OpenBao on OpenShift with HA Raft, TLS, and Static Key Auto-Unseal: No Cloud KMS Needed

Create Locally Trusted SSL Certificates with mkcert on Ubuntu 18.04

Install Nagios NRPE Agent on RHEL/CentOS/Oracle Linux

How to Set Up Your Own Proxy

Install FortiClient VPN Client on Ubuntu 20.04/Ubuntu 18.04

Setup IPSec Site-to-Site VPN Tunnel on pfSense

Install Cisco AnyConnect Client on CentOS 8

MONITORING

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grafana server

Install Grafana on Rocky Linux 8

gen_too

In this guide, we are going to learn how to install Grafana on Rocky Linux …

kibana

Install ELK Stack on Rocky Linux 8

gen_too

Welcome to our demo on how to install ELK Stack on Rocky Linux 8. ELK is the …

ossec

Install OSSEC Agent on Rocky Linux 8

gen_too

This guide presents a step-by-step tutorial on how to install OSSEC Agent on Rocky Linux …

nagios nrpe

Install Nagios NRPE Agent on Rocky Linux 8

gen_too

Follow through this guide to learn how to install Nagios NRPE agent on Rocky Linux 8. In …

Install and Configure Zabbix

Install Zabbix Server on Rocky Linux

koromicha

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

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. …

Backup and Restore Elasticsearch Index Data

Restore Elasticsearch Snapshot to another Cluster

gen_too

In this tutorial, we will try to show how to restore Elasticsearch snapshot to another …

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 …

nagios rocky

Install Nagios Server on Rocky Linux 8

gen_too

In this guide, you will learn how to install Nagios Server on Rocky Linux 8. Nagios provides …

Send Windows logs to Elastic Stack using Winlogbeat and Sysmon

Send Windows logs to Elastic Stack using Winlogbeat and Sysmon

koromicha

In this guide, we are going to learn how to send Windows logs to Elastic …

Process ModSecurity Logs using Wazuh

Process ModSecurity Logs using Wazuh

This guide will take you through how to process ModSecurity logs using Wazuh. ModSecurity WAF can be integrated with Wazuh …
Install Fleet Osquery Manager on Debian 10

Install Fleet Osquery Manager on Rocky Linux

In this tutorial, you will learn how to install Fleet osquery manager on Rocky Linux. According to its Github repository, …
Install ELK Stack 8.x

Install ELK Stack 8 on Debian 12

In this tutorial, you will learn how to install ELK stack 8 on Debian 12 systems. Elastic/ELK stack 8.x has …

NETWORKING

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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 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 …
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 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 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 …
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 …
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 …
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 …
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 …

STORAGE

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How to Deploy Ceph Storage Cluster on Rocky Linux

Part 1: Integrate OpenStack with Ceph Storage Cluster

How to Install and Configure iSCSI Storage Server on Ubuntu 18.04

Install and Configure BackupPC as a Backup Server on Ubuntu 18.04

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

How to Move Linux OS Installation to Another Drive

Setup Software RAID on Debian 10

Install and Setup BackupPC Server on Ubuntu 20.04

VIRTUALIZATION

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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 and Configure Endian Firewall on VirtualBox

Install and Configure Endian Firewall on VirtualBox

koromicha

Welcome to our guide on how to install and configure Endian Firewall on VirtualBox. Endian …

deploy OpenStack using DevStack on Ubuntu 22.04/Ubuntu 20.04

Deploy OpenStack using DevStack on Ubuntu 22.04/Ubuntu 20.04

koromicha

In this tutorial, you will learn how to deploy OpenStack using DevStack on Ubuntu 22.04/Ubuntu …

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 …

Install VirtualBox Guest Additions on Ubuntu 20.04

koromicha

If you have installed Ubuntu 20.04 on VirtualBox, you realize that it is not in …

Resize Root Partition of VirtualBox VM Snapshot

koromicha

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

How to Install Docker Resource Usage Extension

How to Install Docker Resource Usage Extension

Kifarunix

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

Install KVM on Oracle Linux

Install KVM on Oracle Linux

koromicha

In this tutorial, you will learn how to install KVM on Oracle Linux. KVM, an …

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. …

upgrade virtualbox 6.0 6.1

Upgrade VirtualBox 6.0 to 6.1 on Ubuntu Systems

koromicha

With the release of VirtualBox 6.1 and its new major features, you should be planning …

Install VirtualBox Extension Pack on VirtualBox 6.0

Welcome to our tutorial on how install VirtualBox extension pack on VirtualBox 6.0. This guide uses VirtualBox 6.0 installed on …
Setup Three Node Docker Swarm Cluster on Ubuntu

How to Setup Three Node Docker Swarm Cluster on Ubuntu 22.04

How can I setup a Docker swarm? In this tutorial, you will learn how to setup three node Docker swarm …
wubuntu

Install Wubuntu Linux on VirtualBox

Follow through this guide to learn how to install Wubuntu Linux on VirtualBox. According to wubuntu.org; Wubuntu – Linux with …

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