Notes from real client work

Field notes & tutorials.

Hard-won lessons from shipping WHMCS modules, securing servers, and automating hosting businesses - written so you can apply them today.

52 articles · 28 categories · updated weekly

All articles 52 Resources 1 WHMCS 10 Security 3 IPTV 1 Business 1 Marketing 1 Development 7 Automation 1 Performance 1 Configuration 2 Technical 5 Design 1 Analytics 2 Billing 2 Tutorials 1 Integration 3 Security Advisories 1 AI 5

WHMCS Hooks Guide: Extend Functionality Without Modifying Core Files

Stop editing WHMCS core files. After 10+ years building WHMCS systems, here is the working model for hooks — the 7 you will actually use, a real walkthrough, and the pitfalls that have cost me nights of sleep.

S Shahid Malla · Jan 4, 2026 · 14 min

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WHMCS Multi-Currency Setup: Accept Payments Globally

Selling across borders means selling in customers' currencies. The working multi-currency setup — base currency, manual per-currency pricing, gateway-per-currency, IP-based detection, tax handling.

S Shahid Malla Jan 14 · 122

Automation 7 min

WHMCS VPS & Cloud Server Provisioning

Selling VPS through WHMCS — the three architectures, provisioning modules per platform, IP pool management, OS templates, billing for usage, and the monitoring that prevents customer pain.

S Shahid Malla Jan 11 · 159

WHMCS 8 min

WHMCS cPanel Integration: Complete Configuration Guide

WHMCS + cPanel is the most common hosting stack on earth. Most installs are 80% correct. The remaining 20% — API tokens, package mapping, password sync, SSO, server groups — is where this guide focuses.

S Shahid Malla Jan 10 · 157

Development 6 min

WHMCS Client Area Customization: Make It Feel Like a Product

WHMCS client area looks like a billing system. The customization that pays back: faster paths to common tasks, a dashboard that surfaces what matters, mobile-ready UI.

S Shahid Malla Jan 9 · 140

Technical 7 min

WHMCS System Requirements & Best Server Setup

WHMCS official minimums are a floor, not a target. The real-world server spec for a hosting business — by customer count, with PHP / MySQL / OPcache / Redis / TLS configuration.

S Shahid Malla Jan 5 · 179

Development 14 min

WHMCS Hooks Guide: Extend Functionality Without Modifying Core Files

S Shahid Malla Jan 4 · 351

Technical 7 min

WHMCS Cron Jobs: Setup, Troubleshooting, and Monitoring

Half the WHMCS support tickets I see are cron-related. The exact line that should be in your crontab, where it should run, how to verify it works, and how to prevent overlaps with flock.

S Shahid Malla Jan 3 · 175

Technical 8 min

WHMCS Upgrade & Update Best Practices

The runbook I use on every WHMCS upgrade — pre-checks, staging test, the upgrade itself, post-upgrade verification, and how to roll back when it goes sideways.

S Shahid Malla Jan 2 · 147

Security 5 min

WHMCS Fraud Prevention & Order Screening

Hosting is one of the most-targeted businesses for card fraud. Run without fraud prevention and your gateway will close your account. The layered defense that actually works.

S Shahid Malla Dec 30 · 174

Resources 6 min

Best WHMCS Addons & Modules — The Working Stack

The marketplace has 1,000+ modules. The real shortlist for a working hosting business is about 15 — the non-negotiables, the strong recommendations, and what to skip.

S Shahid Malla Dec 28 · 156

Development 8 min

WHMCS API Usage: Real-World Patterns That Work in Production

The WHMCS API turns a billing app into a platform. The 15 commands I actually use, authentication done right, real signup-from-external-site example, and the pagination/error patterns for production code.

S Shahid Malla Dec 27 · 234

Business 5 min

WHMCS Tax & GST Configuration Guide

Tax misconfiguration is invisible until you have a problem. The practical setup — inclusive vs exclusive, per-region rates, EU VAT MOSS, Indian GST with CGST/SGST/IGST.

S Shahid Malla Dec 24 · 106

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