Why Ding Lei Chose FreeBSD Over Linux – A Deep Dive into Server OS History

Background

In 1997 Ding Lei, founder of NetEase, observed the emergence of Hotmail – a free, web‑based email service. After Hotmail’s owners refused to sell the service for the $100,000 he offered, Ding decided to build his own email platform. He selected FreeBSD as the server operating system because it was a complete, free Unix system with a mature TCP/IP stack that could run web, mail, FTP, NFS, firewall and BBS services on inexpensive PC hardware.

After seven months of development, NetEase sold the first system to Guangzhou Telecom for over one million yuan, received the domain 163.net, and quickly attracted thousands of daily registrations, reaching 300,000 users by the end of 1998 and generating four million yuan in profit.

Why FreeBSD was chosen

At the time, Linux had not yet proven itself in commercial server environments, while established Unix variants (Solaris, AIX, HP‑UX, IRIX) dominated the market. FreeBSD offered:

Zero licensing cost and full‑featured Unix compatibility.

A robust, high‑performance TCP/IP implementation.

Stability suitable for long‑running network services.

Ability to run multiple daemons (web, mail, FTP, NFS, firewall, BBS) on low‑cost x86 hardware.

Ding cited that Hotmail’s 20 million users were served by more than 500 FreeBSD servers and that Yahoo’s early 50‑server deployment also ran FreeBSD, underscoring its relevance in the late‑1990s Internet.

FreeBSD vs. Linux community models

FreeBSD’s development has been driven by a relatively small, quality‑focused team that emphasizes code stability and conservative release cycles. Governance is democratic: a core team is elected every two years to make technical decisions, which can lead to prolonged debates (e.g., an eight‑year discussion on replacing CVS with a modern version‑control system, eventually resolved in 2008 by adopting Subversion).

Linux, led by Linus Torvalds, follows a rapid‑iteration model. Contributions are open to a large, diverse community, and decision‑making is centralized under Linus, allowing swift adoption of new tools (e.g., the creation of Git in 2005 after BitKeeper became unavailable).

Historical timeline

1992 – AT&T’s lawsuit forces the Berkeley group to rewrite BSD from scratch, giving rise to the 386BSD port by Lynne and William Jolitz.

November 1993 – FreeBSD 1.0 is released.

March 1994 – Linux 1.0 is released.

Mid‑1990s – 386BSD splits into FreeBSD, NetBSD, and OpenBSD.

2000–2008 – FreeBSD debates over version‑control systems (CVS → BitKeeper/Mercurial/Git → Subversion).

2005 – Linus Torvalds creates Git, accelerating Linux development.

Legacy and current usage

FreeBSD continues to power a wide range of high‑performance and specialized systems, including:

Network‑infrastructure vendors: IBM, Nokia, Juniper Networks, NetApp.

Gaming consoles: Sony PlayStation, Nintendo Switch.

Large‑scale Internet services: Netflix, WhatsApp, FlightAware.

Apple’s operating‑system foundation: FreeBSD is a core component of Darwin, which underlies macOS, iOS, iPadOS, watchOS and tvOS.

Although Linux has become the dominant server OS, FreeBSD remains a viable choice for environments that require a stable, BSD‑licensed kernel, advanced networking features, and a permissive licensing model.