Linux for Die-hard Mac Users - Linux versus FreeBSD
Not
so many people know, but open source BSD UNIX powers about 1 million
of servers. To be exact, free BSD is not covered by GPL open source
license (although publicly available in source code format), but rather
BSD license. Unlike GPL, BSD license does not require modifications
of sources to be submitted back to the community. May be this is one
of the reasons why BSD didn't gained popularity of Linux. Currently
3 flavors of BSD UNIX available: FreeBSD
(4,100 software packages), NetBSD
(2,000 software packages) and OpenBSD
(1,000 software packages). Further I will refer to all three as free
BSD. As server platform, free BSD from the technical point of view
was clearly superior to Linux with kernel v2.2. However, Linux kernel
2.4 allowed to match both platforms in almost all aspects. FreeBSD
currently powers high-loaded sites like Yahoo
and cdrom.com. The last handles
750 GB of transfers per day and 3600 simultaneous connections on single
Pentium Pro 200 PC.
Not
so many people know, but open source BSD UNIX powers about 1 million
of servers. To be exact, free BSD is not covered by GPL open source
license (although publicly available in source code format), but rather
BSD license. Unlike GPL, BSD license does not require modifications
of sources to be submitted back to the community. May be this is one
of the reasons why BSD didn't gained popularity of Linux. Currently
3 flavors of BSD UNIX available: 
