Why Large VARs and Resellers Don’t Promote Open Source Software (OSS)

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Open Source projects don’t pay for football suites, golf outings, wine tastings, and other forms of “customer entertainment”. Open Source projects don’t give VARs and Resellers a “lock in” for deeper discounts via “deal registration” that prevents customers from getting the best price on a solution while protecting the profit margins of VARs and Resellers. Most open source solutions are backed by companies that offer knowledgeable paid technical support options.

Over 90% of the Fortune 500 have OSS solution in their I.T. environments. Popular OSS projects include:
– Wazuh’s XDR/SIEM solution
– OpnSense’s firewall software
– Libre Office desktop productivity suite
– Ubuntu operating system
– KVM hypervisor for virtualization
– Uptime Kuma for device monitoring
– Zabbix for server monitoring
– Python programming language
– MySQL, MongoDB, and PostgreSQL databases
– Nginx and Apache web servers
– Docker and Kubernetes

You Should Know: Essential Open Source Tools and Commands

Security Monitoring with Wazuh

 Install Wazuh agent on Linux
curl -so wazuh-agent.deb https://packages.wazuh.com/4.x/apt/pool/main/w/wazuh-agent/wazuh-agent_4.7.0-1_amd64.deb
sudo WAZUH_MANAGER='wazuh-server-ip' dpkg -i ./wazuh-agent.deb
sudo systemctl daemon-reload
sudo systemctl enable wazuh-agent
sudo systemctl start wazuh-agent

Check Wazuh agent status
sudo systemctl status wazuh-agent

Firewall Management with OpnSense

 SSH into OpnSense (FreeBSD based)
ssh admin@opnsense-ip

View firewall rules
pfctl -sr

Check system logs
tail -f /var/log/system.log

System Monitoring with Zabbix

 Install Zabbix agent on Ubuntu
wget https://repo.zabbix.com/zabbix/6.4/ubuntu/pool/main/z/zabbix-release/zabbix-release_6.4-1+ubuntu22.04_all.deb
sudo dpkg -i zabbix-release_6.4-1+ubuntu22.04_all.deb
sudo apt update
sudo apt install zabbix-agent

Configure Zabbix agent
sudo nano /etc/zabbix/zabbix_agentd.conf

Container Management with Docker

 Install Docker on Linux
curl -fsSL https://get.docker.com | sh
sudo usermod -aG docker $USER

Run a sample container
docker run hello-world

List running containers
docker ps

Kubernetes Basics

 Install kubectl
curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl"
chmod +x kubectl
sudo mv kubectl /usr/local/bin/

Get cluster info
kubectl cluster-info

Database Management

 MySQL quick commands
mysql -u root -p
SHOW DATABASES;
CREATE DATABASE testdb;
USE testdb;

Python Scripting Example

!/usr/bin/env python3
import psutil

Simple system monitor
print(f"CPU Usage: {psutil.cpu_percent()}%")
print(f"Memory Usage: {psutil.virtual_memory().percent}%")

What Undercode Say

Open source software provides unparalleled flexibility and security through transparency. While commercial vendors push proprietary solutions for financial incentives, OSS offers enterprise-grade alternatives without vendor lock-in. The Linux command line remains the most powerful interface for managing OSS solutions:

 Check system resources
top
htop
free -h
df -h

Network diagnostics
ip a
ss -tulnp
tcpdump -i eth0 -n
nmap -sV target-ip

Security hardening
sudo apt install unattended-upgrades
sudo dpkg-reconfigure unattended-upgrades
sudo ufw enable
sudo ufw allow ssh

Process management
ps aux | grep process-name
kill -9 PID
systemctl list-units --type=service
journalctl -xe

For Windows administrators exploring OSS alternatives:

 Install Chocolatey package manager
Set-ExecutionPolicy Bypass -Scope Process -Force; [System.Net.ServicePointManager]::SecurityProtocol = [System.Net.ServicePointManager]::SecurityProtocol -bor 3072; iex ((New-Object System.Net.WebClient).DownloadString('https://community.chocolatey.org/install.ps1'))

Install OSS tools via Chocolatey
choco install wazuh-agent
choco install libreoffice
choco install keepass

The future belongs to open standards and interoperable systems. By mastering OSS tools today, you future-proof your skills and infrastructure against proprietary constraints.

Expected Output:

References:

Reported By: Charlescrampton Want – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅

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