FreeBSD is a free, derived from AT & T UNIX operating system. There is no code that does not contain any AT & T. It can be said that it is an orthodox uniX future generation. Linux is cloned by UNIX developed by a student at the University of Helsinki, Finland. At the time of LINUS, due to the legal disputes in the BSD copyright issues, AT & T, the University of California, causing the source code of the BSD to be free, so Linus wrote his own UNIX version (in fact, FreeBSD And Linux can't be called unix because UNIX is the registered trademark of The Open Group). FreeBSD is a complete operating system that contains a wide range of applications from development tools. It is maintained by a core team of a software development, and the entire original program code will be organized and updated, so the program code is more consistent. FreeBSD is mainly published by its core team. Linux is just a kernel, which is maintained by Linus Torvalds. As a complete system, there are also many GNUs in Linux. Therefore, Linux is more exactly called GNU / Linux. Linux has a lot of publishers, like Redhat, SUSE, Caldera, Debian, Slackware, and more, which are incompatible between them, and all manufacturers have added a lot of their own things. So Linux is in the same year's UNIX. However, fortunately, there is already an authoritative person aware of this. FreeBSD's goal is to provide a rock-solid system. Its technical performance is obvious. For more than ten years, it has made it a "solid as a rock" network operating system. There are many big websites and ISPs in the "FREEBSD, free and open features make it business. Excellent platform for calculation and scientific research. Linux is a constantly developing system. There are many Linux enthusiasts in the world who have added new features, but it is not a growing adult. Linux's origins include a hacker spirit, and FreeBSD is purely from the theoretical group, with more college color, and its development and computer research department is very tight, not a hacker. As you want. When each company began to hire hackers to install and manage the Internet, they will naturally think of Linux this old friend, not (in their view) FreeBSD. FreeBSD is clearer, direct and efficient installation because of the centralized development method. But for friends who are accustomed to graphical installation, FreeBSD may disappoint them. If you are accustomed to the installation of FreeBSD, I believe you will love it. Linux has a lot of distribution vendors, so its installation environment is also a five-flowers, there is a graphic installation interface, with a character-based installation interface. The installation methods between individual pubes are different. If you go from a Linux distribution to another Linux distribution, you may need to learn a new installation tool. Since FreeBSD has been in a long time to fall into relation to AT & T's legal disputes, it seriously hinders its development, so it is not known for people. If there is no such legal dispute, it may not have today's Linux. Because FreeBSD is in a legal dispute, Linux just sprouting. Linux has a fully developed system that has not encountered any legal disputes, so in a long time, it is the only free UNIX system, which is deeply loved by the hackers. Since people have fewer understandings for FreeBSD, the range of use is also small, resulting in it is not as good as Linux for some new products.