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CyberKnights prefers to base systems on the popular Linux™ operating system for a wide variety of positive reasons, & a few negative reasons.
Linux™ is extremely stable to run. Continuous uptimes of several years are common. Not quite to the same extent as, for example, some of the open-licenced BSD systems, but sufficiently stable that both systems are often run continuously until hardware or the entire system is replaced.
Linux™ is extremely efficient. It makes optimal use of all available resources, particularly memory & processor (CPU) power. Because it is so efficient, & halts the processor when it’s not actually doing things, Linux™ systems are also power-efficient & can often survive failure of CPU and/or power supply cooling systems.
Linux™ is extremely scaleable. The same operating system runs tiny embedded devices & multiprocessor super-servers, diskless workstations & mainframes.
Linux™ is extremely portable. While other operating systems are dropping support for processors, even going as far as specialising down to one single processor type, only NetBSD rivals Linux™ for the number of different kinds of processor it runs on.
Linux™ is widely supported. As well as running the vast majority of Posix & UNIX software with little or no adaptation, Linux™ has a large stable of software for which it is the primary or only development platform.
Linux™ has drivers for an extremely wide range of devices, & is relatively easy to write a device driver for. As one bright competitor said, “Any idiot could write a driver in 2 days with a book like Linux™ Device Drivers — there is no such thing as a 2-day device-driver for [his product].”
Linux™ distributions, with much in common, are available from a wide range of suppliers.
Linux™ & the systems commonly run under it have a very fast issue turnaround time, which is especially important in the security arena. It is not uncommon for a tested Linux™ fix to appear within a few hours of problem discovery, & for proprietary competitors to spend weeks or months drumming up & testing (on good days) an answer to the same problem.
Linux™ supports a wide variety of filesystem & networking standards. This permits interoperability with many other systems, & also provides a range of (for example) fully journalling filesystems to suit particular applications.
Linux™ is contributed to by a large number of very competent people & organisations, & tested by an extremely diverse population, which affords it a solution scope & testing space unmatched by any more limited or artificial milieu.
Linux™ is understood & supported by many competent people & groups, which affords it a very broad support space, avoiding the many “lock-in” traps buried in the common closed-source, single-brand, proprietary-systematics approaches. Those competent people — an awesome array of competent people — can support your software, develop from it, extend it, without submitting to special licences, special closed-shop training sessions, exclusive or patent-encumbered documentation, et cetera.
Linux™ avoids the complex, expensive & ever-changing licencing conditions associated with some proprietary operating systems.
While the primary APIs in Linux™ are not completely frozen, they are highly interoperable with other UNIX-like systems (such as OS/2, BeOS & Apple’s new OS X), & much more stable than common specialised systems. It is also simple to run several generations of an API side by side, since shared libraries are not restricted to a short naming scheme or consequent ambiguity of contents.
Even systems which are generally hostile to & subversive to standards (such as Microsoft Windows) can often support, albeit in limited fashion, software written to a Linux™ API with little or no modification. CygWin is an example of such a support system, as is XMing. Services such as the Apache web server & the PostgreSQL database can be shoehorned into it.
Linux™ does not depend on a marketing or management structure with a history spanning several decades of frequent misleading statements or outright lies, but rather operates on a policy of full disclosure.
Directly: by selling it. The GPL explicitly permits selling & marking-up software released under it.
Indirectly: by selling systems, support or consulting based around it. See below.
One makes money from Free/Open Source Software by treating the software itself as a commodity, & engineering a business around how that software solves people’s problems. Consider these two quotes from an OSIA discussion of the topic. Both of the people quoted are paid by companies making money from FOSS in different ways.
“That’s interesting, isn’t it. If a developer does not provide support, they are less likely to get significant (if any) revenue. Sounds to me like decent quality control!” — Arjen Lentz
Linux® is the registered trademark of Linus Torvalds in the United States & other countries. Here in Australia, it is a common-law Trademark in the process of becoming Registered.
Linux reseller Bryce Coad had audiences eating out of his hand as he demonstrated the operating system running OpenOffice.org [. . .] Igor Portugal, technical head at Linux reseller Asterisk, which made its first appearance at the show in 1999, says Orix, Linfox Logistics, the Health and Disability Commission and Vita New Zealand are among its customers. Portugal collected a wad of business cards from visitors to his stand, many of which he expected to turn into sales. — ComputerWorld Expo 2002
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