unix network operating system ppt

... documentation on UNIX : 7.1. Standard UNIX Documentation DOS, accessing with UNIX : 4.4.6. Files on Other Operating Systems MTOOLS utilities for : 4.4.6. Files on Other Operating Systems dot ... prompt; you can enter UNIX commands again. Previous: 1.2 Syntax of UNIX Command Lines Learning the Unix Operating System Next: 1.4 The Unresponsive Terminal 1.2 Syntax of UNIX Command Lines Book ... enough, ask another UNIX user or your system administrator.) 1.1.1.1 Connecting from another operating system If you're using a personal computer to connect to the UNIX system, you'll...

Ngày tải lên: 18/03/2014, 00:20

... file system hierarchy Any operating system needs to save numerous files: from system configuration files, to log files or user files etc. In general, each operating system uses its own file system ... add a group to the system. Dates on UNIX systems On UNIX systems, dates are normally shown according to the number of seconds elapsed since 1st January 1970. Disk quota For systems with hundreds ... had been able to use the source code of AT&T’s UNIX to help teach his pupils to design operating systems. His idea was to write an operating system that could be studied and modified by anyone...

Ngày tải lên: 08/03/2014, 23:20

... initdefault: – Use command $startx Unix kernel architect Content ã Unix/ Linux Chronology. ã File System ã Process Management ã User Management ã Networking with Unix ã Programable Filters ã Programming ... of 80s, 2 organizations said hello UNIX International (UI) ã The agreement between AT&T and Sun : SVR4 (System V Release 4), The converged Edition of System V and BSD Open Software Foundation ... on Unix/ Linux ã Some facilities Distributions Linux ã Distribution = A collection of all or some programs altogether around a Linux kernel which allows to install a collaborative system, operating...

Ngày tải lên: 09/05/2014, 08:45

... a network is the network operating system. Just as a computer cannot operate without an operating system, a network of computers cannot operate without a network operating system. Every network ... the network operating system s manufacturer, a desktop computer’s networking software can be added either to the computer’s own operating system or be integrated with it. Network operating system ... features of the Windows 2000 operating systems and describe the different types of networks and network operating systems. Module 2, “Administration of a Windows 2000 Network, ” describes routine...

Ngày tải lên: 09/12/2013, 17:15

Ngày tải lên: 25/11/2013, 11:07

... 1 Advanced Network and System Administration Accounts and Namespaces 13 LDIF  LDAP Interchange Format.  Standard ... Directories  Make administration easier.  Change data only once: people, accounts, hosts.  Unify access to network resources.  Single sign on.  Single place for users to search (address book)  Improve ... LDAP Authentication 12 LDAP Schemas Schemas specify allowed objectClasses and attributes. 5 System Administration Directories  Types of directory data  Accounts  Mail aliases and lists...

Ngày tải lên: 20/01/2014, 06:20

... Accept upgrade transfer from other hosts Enabled Actions [U] System XMODEM upgrade [D] Download test subsystem (XMODEM) [T] System TFTP upgrade [X] Exit to Main Menu Enter Selection: ... and Intermediate Routing v 3.0 - Lab 6.2.7a Copyright  2003, Cisco Systems, Inc. Lab 6.2.7a Managing Switch Operating System Files Objective ã Create and verify a basic switch configuration. ... An example of the Firmware Configuration Menu is: Catalyst 1900 - Firmware Configuration System Information FLASH: 1024K bytes V8.01.00 : Enterprise Edition Upgrade status: No upgrade...

Ngày tải lên: 24/01/2014, 19:20

... multithreaded operating system and a very efficient one. While programmers can explicitly create threads, much of the work of handling threads is taken care of behind the scenes by the operating system ... upgrade its operating system, it must take into account the millions of users that have a large invest- ment in software designed to run on the existing version of its operating system. So no ... with the system s ability to assign threads to processors based on the current load on each processor, makes for a system with very high performance. Preemptive Multitasking An operating system...

Ngày tải lên: 26/01/2014, 07:20

... three color components), and because it is a color system with which many program- mers and end users are familiar with (it’s common to several operating systems). The BeOS defines rgb_color as a struct ... StrokeRect(rect8); SetPenSize(12.0); StrokeRect(rect12); Shapes Be claims that the BeOS is an operating system for the graphics community. So it’s hoped that the BeOS makes it easy for programmers ... user clicks the mouse in the MyDrawView view, MouseDown() makes the system aware of the fact that the view needs updating, and the system invokes Draw(): void MyDrawView::MouseDown(BPoint point) { ...

Ngày tải lên: 26/01/2014, 07:20

... the affected view invoking the BView hook function MouseDown(). Besides being the recipient of system messages, a window is also capable of receiving application-defined messages. This lets you ... window. When the user operates the control (typically by clicking on it, as for a button), the system passes the applica- tion-defined message to the window. How the window handles the message ... BWindow::MessageReceived(BMessage* message) { switch(message->what) { // handle B_KEY_DOWN and scripting-related system messages Figure 6-3. Message passed to parent class’s version of MessageReceived() message Application server MessageReceived() BWindow-derived version MessageReceived() BWindow version MessageReceived() BHandler version message message ...

Ngày tải lên: 26/01/2014, 07:20

... may not always fit within the confines of a view. Enter the scrollbar. The APIs for other operating systems that employ a graphical user interface include routines to work with scrollbars, but ... setting a view’s font to one of the global system fonts, but you can use SetFont() with any BFont object. Here, one view is having its font set to the global system font be_ plain_font, while another ... machine may have more than the three system fonts installed, your application shouldn’t make any font-related assumptions. You can’t be sure every user has a non -system font your application uses;...

Ngày tải lên: 26/01/2014, 07:20

Ngày tải lên: 14/02/2014, 08:20

... interface standards are EIDE (Enhanced Integrated Drive Electronics) and SCSI (Small Computer System Interface). ã EIDE has evolved over the years and has several variants, all of which have...

Ngày tải lên: 16/02/2014, 08:20

... 1995. xix operating system architecture. As an operating system designed to be flexible and robust, Unix lends itself to providing a wide array of host- and network- based services. Unix also has ... 11: Wireless Network Security 275 1. Cellular Networks 276 Cellular Telephone Networks 277 802.11 Wireless LANs 278 2. Wireless Ad Hoc Networks 279 Wireless Sensor Networks 279 Mesh Networks 280 3. ... distributions. It derives directly from AT&T System V R4.2 and is one of the few operating systems that can legally be called Unix. It is distributed by Sun Microsystems, but there are independent distributions...

Ngày tải lên: 14/03/2014, 20:20

... 3.4 Silberschatz, Galvin and Gagne â2005 Operating System Concepts - 7 th Edition, Feb 7, 2006 Process in Memory Process in Memory 3.39 Silberschatz, Galvin and Gagne â2005 Operating System Concepts - 7 th Edition, ... Galvin and Gagne â2005 Operating System Concepts - 7 th Edition, Feb 7, 2006 Process Termination Process Termination  Process executes last statement and asks the operating system to delete it ... exiting  Some operating system do not allow child to continue if its parent terminates – All children terminated - cascading termination 3.3 Silberschatz, Galvin and Gagne â2005 Operating System Concepts...

Ngày tải lên: 28/06/2014, 02:20

... Chapter 13: I/O Systems Chapter 13: I/O Systems 13.21 Silberschatz, Galvin and Gagne â2005 Operating System Concepts 7 th Edition, Jan 2, 2005 Kernel I/O Subsystem Kernel I/O Subsystem  Scheduling z ... 2005 Use of a System Call to Perform I/O Use of a System Call to Perform I/O 13.17 Silberschatz, Galvin and Gagne â2005 Operating System Concepts 7 th Edition, Jan 2, 2005 Network Devices Network ... and Gagne â2005 Operating System Concepts 7 th Edition, Jan 2, 2005 Two I/O Methods Two I/O Methods Synchronous Asynchronous 13.6 Silberschatz, Galvin and Gagne â2005 Operating System Concepts...

Ngày tải lên: 28/06/2014, 02:20

... Gagne â2005 Operating System Concepts 7 th Edition, Jan 1, 2005 Implementing Real Implementing Real - - Time Time Operating Systems Operating Systems  In general, real-time operating systems ... Gagne â2005 Operating System Concepts 7 th Edition, Jan 1, 2005 Chapter 19: Real Chapter 19: Real - - Time Systems Time Systems  System Characteristics  Features of Real-Time Systems  Implementing ... 19.6 Silberschatz, Galvin and Gagne â2005 Operating System Concepts 7 th Edition, Jan 1, 2005 System System - - on on - - a a - - Chip Chip  Many real-time systems are designed using system- on-a-chip (SOC)...

Ngày tải lên: 28/06/2014, 02:20

Ngày tải lên: 03/07/2014, 07:20

Ngày tải lên: 23/07/2014, 23:20

Ngày tải lên: 23/07/2014, 23:20