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UNIX for Dummies Questions & Answers
MAX OS X and GCC Compiler - From the Apple Store!
Post 3004 by Neo on Friday 15th of June 2001 01:11:11 PM
06-15-2001
Administrator
More From Apple and MAC OS X.
I had the good luck of asking these questions with the 'Genius Bar' here at the Apple Store in Tysons. Here is the scoop on "openness":<P>
The core kernel for MAC OS X is Darwin and YES, it is opensource. It is extensible, expandable, scaleable. It is as much UNIX as any UNIX. In an nutshell, Apple has evolved to a UNIX core. The difference lies, primarily in the graphics and user interfaces.<P>
Command line Darwin is just like command line in any UNIX. You can rebuild the kernel, add revise drivers, etc. However, there are licensing issues with what you do for these in a commerical environment. For fun and for your company or for yourself, you can modify the kernel to your hearts content.<P>
The graphical user interface is Apple controlled (proprietary). In a traditional UNIX environment, think of this as replacing X (and X Windows, etc.) with the Apple graphics environment. This is what you pay, super programs like the MAC user interface (on top of the UNIX core Darwin), iMovies, Click-Time, etc. all on top of a multi-tasking, memory management, etc. UNIX core. <P>
In a nutshell, MAC OS X is the marriage of UNIX (the core open system) with Apple graphics (it is more complex than that, but that is the bird's eye view). If you love to run UNIX-based software, you can and you can do this side by side Apple graphics and applications. <P>
So, the core UNIX (Darwin) kernel is open and extensible. The MAC graphics and super desktop applications are not. This is a great marriage; UNIX at the core and Apple at the graphics, application level. That is it, in a nutshell.
I'm more excited every time I play on OS X. I now plan to buy an OS X system and replace my Windows desktop completely with UNIX and Apple, running Microsoft applications like Word and Powerpoint in the Apple environment. This is promising and a giant leap for UNIX, IMHO.<P>
However, not sure about security, user management, logins, etc. The systems here boot without a login prompt. Will have to check into how OS X works in a multi-user environment. Still learning ......
The core kernel for MAC OS X is Darwin and YES, it is opensource. It is extensible, expandable, scaleable. It is as much UNIX as any UNIX. In an nutshell, Apple has evolved to a UNIX core. The difference lies, primarily in the graphics and user interfaces.<P>
Command line Darwin is just like command line in any UNIX. You can rebuild the kernel, add revise drivers, etc. However, there are licensing issues with what you do for these in a commerical environment. For fun and for your company or for yourself, you can modify the kernel to your hearts content.<P>
The graphical user interface is Apple controlled (proprietary). In a traditional UNIX environment, think of this as replacing X (and X Windows, etc.) with the Apple graphics environment. This is what you pay, super programs like the MAC user interface (on top of the UNIX core Darwin), iMovies, Click-Time, etc. all on top of a multi-tasking, memory management, etc. UNIX core. <P>
In a nutshell, MAC OS X is the marriage of UNIX (the core open system) with Apple graphics (it is more complex than that, but that is the bird's eye view). If you love to run UNIX-based software, you can and you can do this side by side Apple graphics and applications. <P>
So, the core UNIX (Darwin) kernel is open and extensible. The MAC graphics and super desktop applications are not. This is a great marriage; UNIX at the core and Apple at the graphics, application level. That is it, in a nutshell.
I'm more excited every time I play on OS X. I now plan to buy an OS X system and replace my Windows desktop completely with UNIX and Apple, running Microsoft applications like Word and Powerpoint in the Apple environment. This is promising and a giant leap for UNIX, IMHO.<P>However, not sure about security, user management, logins, etc.
The systems here boot without a login prompt. Will have to check into how OS X works in a multi-user environment. Still learning ......|
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LEARN ABOUT OSF1
dxaccounts
dxaccounts(8) System Manager's Manual dxaccounts(8) NAME
dxaccounts - Graphical interface for account administration SYNOPSIS
/usr/bin/X11/dxaccounts DESCRIPTION
The Account Manager application, dxaccounts, helps you manage user accounts on your Tru64 UNIX system. It operates on both base security level systems and enhanced security (C2) level systems. The Account Manager application lets you manage both the local and Network Information Service (NIS) UNIX account databases. NIS is used in order to centrally manage user accounts in a network environment. NIS lets participating systems share a common set of passwd and group files. NIS uses a client-server model. When the Advanced Server for Tru64 UNIX product is installed, the Account Manager application allows you to perform domain user account management for PC users. To start Account Manager from the CDE desktop:Choose the Application Manager from the CDE front panel. Choose the System_Admin group. Choose the DailyAdmin group. Click on the Account Manager icon. Online help is available for the dxaccounts application. To get help, click on any Help button or use the Help pull-down menu. Account Manager replaces the XSysAdmin(8) and XIsso(8) applications. RESTRICTIONS
You must have root privileges to modify system files with this application. If dxaccounts is run without root permission, you may view but not modify account information. In order to make changes to the NIS databases, you must run Account Manager on the machine designated as the NIS server. FILES
Defaults that are shared by the graphical user and command-line interfaces System and account defaults (enhanced security only) Group information for local groups Account information for local user accounts List of shells on the system Group information for NIS groups (on an NIS master) Account information for NIS user accounts (on an NIS master) Protected password authentication database files (enhanced security only) Protected password database (enhanced security only) Protected password database (enhanced security only) Account Manager application Account Manager help volume Account Manager help volume for enhanced security Directory containing Account Manager application icons Application defaults file that sets the default values for the X resources Account Manager message catalog Default directory for user account initial files SEE ALSO
Commands: auditmask(8), authck(8), groupadd(8), groupdel(8), groupmod(8), login(1), nis_intro(7), passwd(1), secsetup(8), useradd(8), userdel(8), usermod(8), XIsso(8), XSysAdmin(8) Functions: acceptable_password(3), getprpwent(3), getpwent(3) Files: authcap(4), default(4), group(4), passwd(4) Manuals: System Administration, Advanced Server for UNIX Installation and Administration, Advanced Server for UNIX Concepts and Plan- ning</docbook> dxaccounts(8)