Hi,

What are the dirrerence between Linux and Red hat linux?

Thanks
ChiranjibThe word 'Linux' is like the words 'Windows' or 'Mac'.
Red hat linux is a distrubution of Linux, just like Ubuntu Linux or Knoppix.
There are hundreds of different versions.Quote from: chiranjib on May 23, 2007, 11:07:41 PM

What are the dirrerence between Linux and Red hat linux?

What are the dirrerence between Linux and Red hat linux?

* one slight flaw is that although most people refer to any unix-like operating system e.g. Linux, Solaris, SunOS, BSD, AIX as "Unix", we're all wrong because Unix is actually a registered trade-mark.

The Solaris 10 Operating System is an open source UNIX operating system, and is available as a free download for both x86/x64 and SPARC systems. This release—the result of a $500-million plus investment in development by Sun—is the most advanced operating system on the planet.

In 1994 Novell (who had acquired the UNIX systems business of AT&T/USL) decided to get out of that business. Rather than sell the business as a single entity, Novell transferred the rights to the UNIX trademark and the SPECIFICATION (that subsequently became the Single UNIX Specification) to The Open Group (at the time X/Open Company). Subsequently, it sold the source code and the product implementation (UNIXWARE) to SCO. The Open Group also owns the trademark UNIXWARE, transferred to them from SCO more recently.

Today, the DEFINITION of UNIX ® takes the form of the worldwide Single UNIX Specification integrating X/Open Company's XPG4, IEEE's POSIX Standards and ISO C. Through continual evolution, the Single UNIX Specification is the defacto and DEJURE standard definition for the UNIX system application programming interfaces. As the owner of the UNIX trademark, The Open Group has separated the UNIX trademark from any actual code stream itself, thus allowing multiple implementations. Since the introduction of the Single UNIX Specification, there has been a single, open, consensus specification that defines the requirements for a conformant UNIX system.

There is also a mark, or brand, that is used to identify those products that have been certified as conforming to the Single UNIX Specification, initially UNIX 93, followed subsequently by UNIX 95, UNIX 98 and now UNIX 03.

Fully POSIX-compliant

These are POSIX compatible, they conform to it fully.

* A/UX
* AIX
* BlagOS
* BSD/OS [4]
* Cygwin - enables POSIX compliance for certain MICROSOFT Windows products.
* HP-UX
* INTEGRITY
* IRIX
* LynxOS
* Mac OS X
* Microsoft Windows Services for UNIX 3.5 - enables full POSIX compliance for certain Microsoft Windows products.
* MINIX
* OpenVMS
* penOS
* QNX
* RTEMS (POSIX 1003.1-2003 Profile 52)
* Solaris
o OpenSolaris
* UnixWare
* velOSity
* VxWorks
* Windows NT kernel (used in Windows NT, Windows 2000, Windows XP, Windows Server 2003; Windows Vista and Windows Server "Longhorn")
o Windows NT (except optional POSIX features) [5]
o Windows 2000 Server or Professional with Service Pack 3 or later (When using Microsoft SFU 3.5). To be POSIX compliant, one must activate optional features of Windows NT and Windows 2000 Server. [6]
o Windows XP Professional with Service Pack 1 or later (When using Microsoft SFU 3.5)
o Windows Server 2003 (When using Microsoft Windows Services for UNIX 3.5)
o Windows Server 2003 R2 (Includes a Subsystem for UNIX-based Applications)
o Windows Vista (the Enterprise and Ultimate editions include the Subsystem for UNIX-based Applications)