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Openbyte
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Practical Linux, cloud, security and open source guidance for South African businesses.

Articles & Guides

We're building out a library of straight-talking technical guidance for South African businesses - covering Linux infrastructure, cloud and DevOps, cybersecurity, backups, and the open source platforms we deploy every day. No fluff, no vendor spin - just what we've learned running this stuff for real clients.

Latest Articles

Got a topic you'd like us to cover? Let us know.

Networking 26 Sep 2026

OPNsense vs. a Consumer Router: What a Real Firewall Buys You

Every ISP router technically has a firewall. Here's what that actually means, and the five capabilities that separate a consumer router from a real business firewall.

AI & Business 9 Sep 2026

"Just Use ChatGPT" Isn't an AI Strategy - Here's What Actually Works

Ad-hoc AI adoption without structure creates risk and inconsistent results. Here's what a proper AI adoption strategy actually includes.

Security 26 Aug 2026

5 Signs Your Linux Server Has Been Compromised (And What to Do in the First Hour)

Practical warning signs of a Linux compromise, and exactly what to do - and not do - in the first sixty minutes after you spot one.

Virtualisation 12 Aug 2026

VMware to Proxmox Migration: What It Actually Costs (and Saves) in Rands

Broadcom's licensing changes have reshaped the maths. A realistic breakdown of migration cost versus what staying on VMware now costs.

Security 7 Jul 2026

Mapping Wazuh to ISO/IEC 27001:2022 - Evidence Your Controls Actually Work

A practical mapping of Wazuh modules to the ISO 27001:2022 controls auditors look for, with a table showing exactly what evidence each module produces.

Security 25 Jun 2026

What Is a SIEM and Does Your Business Actually Need One?

A plain-English explanation of security information and event management, and when it's genuinely worth deploying.

Compliance 11 Jun 2026

POPIA Compliance Checklist for South African SMBs Running Their Own Servers

A practical, technical checklist for businesses self-hosting infrastructure rather than relying on a cloud provider's compliance posture.

Backup 28 May 2026

Why We Still Recommend BareOS Over Cloud Backup for On-Premises SA Businesses

Load shedding, data sovereignty, and bandwidth costs all change the backup-strategy math for local businesses.

IT Strategy 12 May 2026

5 Signs Your Business Has Outgrown Ad-Hoc IT Support

How to tell when it's time to move from pay-as-you-go support to a proper monthly SLA - and what that should include.

Infrastructure 24 Apr 2026

Load Shedding and Your Servers: A Practical Hardening Checklist

UPS sizing, graceful shutdown scripts, and the configuration choices that keep your infrastructure resilient through outages.

Networking 9 Apr 2026

VPN vs Direct Cloud Access: Choosing the Right Remote Access Setup

How to choose a remote access architecture for hybrid teams, weighing security, cost, and complexity.

Cloud & Data 18 Mar 2026

Self-Hosted vs Google Workspace/Microsoft 365: A Data Sovereignty Comparison

Where your data actually lives, who can access it, and what that means under South African law.

Containers 3 Mar 2026

Docker for Non-Developers: Why Your IT Provider Keeps Mentioning Containers

An accessible explanation of containerisation for business owners, written without assuming any technical background.

Linux & Cost 6 Feb 2026

Linux vs Windows Server: What It Actually Costs Your Business Over 5 Years

A real licensing cost breakdown in Rand terms, including the support and skills factors most TCO comparisons leave out.

Business Software 14 Jan 2026

Open Source CRM vs Salesforce for SA Small Business: An Honest Cost Comparison

An honest Rand-figure cost and feature comparison for South African small and mid-sized businesses.

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