HowTos, , Sendmail

Configure Sendmail to Use Gmail Relay on Ubuntu|Debian

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koromicha
Virtualization, HowTos, Security, VirtualBox

Install Kali Linux 2020.3 on VirtualBox

HowTos, , Sendmail

Configure Sendmail to Use Gmail Relay on Ubuntu|Debian

HowTos

Install NetBeans IDE on Debian 11

HowTos, ownCloud, Storage

Install ownCloud Server on Debian 10 Buster

Containers

More
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 …
Automate OpenShift Builds with Git Webhooks

How to Automate OpenShift Builds with Git Webhooks: Step-by-Step Guide

In this guide, you will learn how to automate OpenShift Builds with Git webhooks. Automating builds in OpenShift with Git …
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 …
using configmaps in kubernetes

Step-by-Step Guide to Using ConfigMaps in Kubernetes

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

Extend OpenShift CoreOS /sysroot Root Filesystem

Extend OpenShift CoreOS /sysroot Root Filesystem

Deploying CloudBees CI on OpenShift: Architecture, Installation, Security, and Production Best Practices

Deploying CloudBees CI on OpenShift: Architecture, Installation, Security, and Production Best Practices

Setup Kubernetes Cluster on Ubuntu

Setup Kubernetes Cluster on Ubuntu 22.04/20.04

kubernetes drain vs cordon nodes

Kubernetes Nodes Maintenance: Drain vs. Cordon Demystified

Understanding Deployments in Kubernetes: A Comprehensive Guide

Understanding Deployments in Kubernetes: A Comprehensive Guide

How to Configure Centralized Logging in OpenShift with LokiStack and ODF

How to Configure Centralized Logging in OpenShift with LokiStack and ODF

deploy HAProxy as a Docker container

Deploy HAProxy as a Docker Container

Enable User Workload Monitoring in OpenShift 4.20

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

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

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

Static Pods vs Mirror Pods vs DaemonSets

Kubernetes Pod Management: Static Pods vs Mirror Pods vs DaemonSets

Deploy NRPE Agent as a Docker container

Deploy NRPE Agent as a Docker Container

Deploy Multi-Node OpenStack using Kolla-Ansible

Deploy Multinode OpenStack using Kolla-Ansible

OpenBao Kubernetes Auth on OpenShift: Eliminate Static Secrets from Your Workloads

OpenBao Kubernetes Auth on OpenShift: Eliminate Static Secrets from Your Workloads

How to Install Docker Desktop on Kali Linux

How to Install Docker Desktop on Kali Linux

Security

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How to Enable HTTPS for Request Tracker on Linux

How to Install and Setup Tailscale VPN on Debian 12

Most Popular

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Install Wazuh Agent on pfSense
Monitoring, Elastic Stack, HowTos, Security, Wazuh

Install Wazuh Agent on pfSense

Install Portainer Extension on Docker Desktop
HowTos, Containers, Docker

Install Portainer Extension on Docker Desktop

Install and Setup Vtiger CRM on Ubuntu 20.04
CRM, HowTos

Install and Setup Vtiger CRM on Debian 10

HowTos, Proxy, Security

Configure APT Proxy on Debian 10 Buster

integrate Suricata with Wazuh for log processing
HowTos, Monitoring, Security

Integrate Suricata with Wazuh for Log Processing

openvpn
Security, HowTos, OpenVPN, VPN

Install and Configure OpenVPN Client on Rocky Linux 8

How to Fix QRadar CE failing Gluster 3.8 repos on CentOS-7.3

Install Kismet on Ubuntu 18.04

Configure LibModsecurity with Nginx on CentOS 8

How to Perform System Security Auditing with Lynis on Ubuntu 18.04

Intercept Malicious File Upload with ModSecurity and ClamAV

How to Install OSSEC Agent on Solaris 11.4

Install sysPass Password Manager on Rocky Linux

Install and Setup Suricata on Ubuntu 22.04/Ubuntu 20.04

Process ModSecurity Logs using Wazuh

How to Configure Apache Tomcat with HTTPS

The Benefits & Risks of Using Website Encryption

Creating Custom Nessus Scan Policy Templates

MONITORING

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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 …

integrate Suricata with Wazuh for log processing

Integrate Suricata with Wazuh for Log Processing

gen_too

Follow through this tutorial to learn how to integrate Suricata with Wazuh for log processing. …

How to Install Osquery on Ubuntu 18.04

koromicha

In this guide, we are going to learn how to install osquery on Ubuntu 18.04. …

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 …

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 …

Monitor Linux Hosts using Nagios check_by_ssh Plugin

Monitor Linux Hosts using Nagios check_by_ssh Plugin

koromicha

Welcome to our tutorial on how to monitor Linux Hosts using Nagios check_by_ssh plugin. This …

Install OSSEC HIDS Agent

Install OSSEC Agent on Debian 10 Buster

koromicha

In this guide, we are going to learn how to install OSSEC Agent on Debian …

Install and Setup TIG Stack on Fedora 30

koromicha

In this guide, we are going to learn how to install and setup TIG stack …

Install and Setup Security Onion on VirtualBox

Install and Setup Security Onion on VirtualBox

gen_too

In this tutorial, you will learn how to install and setup Security Onion on VirtualBox. …

kibana custom ingest pipelines

Create Custom ELK Ingest Pipeline for Custom Log Processing

gen_too

Follow through this tutorial to learn how create custom ELK ingest pipeline for custom log …

Enable User Workload Monitoring in OpenShift 4.20

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

In this blog post, you will learn how to enable user workload monitoring in OpenShift 4.20 and empower developers to …

Setup Kibana Elasticsearch and Fluentd on CentOS 8

Hello there. In this tutorial, you will learn how to setup Kibana Elasticsearch and Fluentd on CentOS 8. Normally, you …

Monitor Squid logs with Grafana and Graylog

In this guide, we are going to learn how to monitor squid logs with Grafana and Graylog. You can check …

NETWORKING

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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 …
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 …
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 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 …
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 …
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 …
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 …
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 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 …

STORAGE

More

Quick Way to Setup Samba File Server on Debian 10

How to Backup and Restore Applications in OpenShift 4 with OADP (Velero) and ODF

How to Install MinIO on Ubuntu 24.04: A Step-by-Step Guide

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

Install and Setup Rsyslog Server on Ubuntu 22.04

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

How Install and Configure iSCSI Storage server on CentOS 7

Install ownCloud Desktop Client on Ubuntu 20.04

VIRTUALIZATION

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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 Install Docker Desktop on Ubuntu

How to Install Docker Desktop on Ubuntu 22.04/Ubuntu 20.04

Kifarunix

How can you install Docker desktop on Linux? In this tutorial, you will learn how …

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 VirtualBox Guest Additions on Oracle Linux 9

Install VirtualBox Guest Additions on Oracle Linux 9

koromicha

Follow through this tutorial to learn how to install VirtualBox guest additions on Oracle Linux …

Easy Way to Extend KVM Virtual Machine Disk Size

Easy Way to Extend KVM Virtual Machine Disk Size

kaptotonindet

This is a simple tutorial on an easy way to extend KVM virtual machine disk …

Install Fedora 30 Workstation on VirtualBox

koromicha

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

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 Guest Additions on CentOS 8

koromicha

In our previous guide, we learnt how to Install CentOS 8 on VirtualBox. However, it …

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 Rocky Linux 8 on VirtualBox

Install Rocky Linux 8 on VirtualBox

koromicha

Follow through this tutorial to learn how to install Rocky Linux 8 on VirtualBox. According …

deploy HAProxy as a Docker container

Deploy HAProxy as a Docker Container

Follow through this tutorial to learn how to deploy HAProxy as a Docker container. HAProxy “is a free, very fast …

Install CentOS 8 on VirtualBox

So CentOS 8 is just released a few days ago and you would like to test it? Well, let us …
Install Rocky Linux 8 on VirtualBox

Install Rocky Linux 8 on VirtualBox

Follow through this tutorial to learn how to install Rocky Linux 8 on VirtualBox. According to rockylinux.org, Rocky Linux is …

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