TAILIEUCHUNG - Professional Information Technology-Programming Book part 122

Tham khảo tài liệu 'professional information technology-programming book part 122', công nghệ thông tin, kỹ thuật lập trình phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | . What Is OpenBSD OpenBSD is a Unix-like computer operating system that is widely regarded for its excellent documentation and its fanatical focus on security. In October of 1995 Theo de Raadt forked the NetBSD code and formed OpenBSD with the goal of making a free in the context of rights not price highly functional operating system that concentrated on security while remaining as portable as possible. NetBSD was originally based on the last release of the academic replacement for AT T Unix known as the Berkeley Software Distribution so OpenBSD s heritage reaches back considerably further than many other operating systems in development today. OpenBSD is designed to be secure by default. The simplest way to explain this concept is to say that everything that could potentially be a security risk is turned off or disabled until you turn on or enable it. That means that while you may have the Apache web server installed it is not going to start until you either run its daemon from the command line or manually add httpd the service name that corresponds to Apache to the system startup script. OpenSSH services will also be unavailable unless specifically enabled. Because it is secure by default you may have to do more initial configuration with OpenBSD than with most other Unix-like operating systems and that is why this guide existsto show you how to get an OpenBSD machine up and running quickly. . What Is OpenBSD Good For OpenBSD is frequently employed as a web email and FTP server though it can just as easily run BIND to do DNS name resolution OpenLDAP to form a directory server and the PostgreSQL and MySQL databases among a few others. Many people also use OpenBSD in a network appliance machine as a firewall router and wireless access point. You can also make a suitable desktop operating system out of OpenBSD if you wish. The server is provided on the installation media and relatively recent editions of KDE GNOME Xfce Fluxbox Enlightenment .

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