create the operating system group and user
pro oracle databasea 11g administration
... use the groupdel command If you need to modify a group, use the groupmod command Next, use the useradd command to add operating system users This command requires root access The following command ... a user, use the usermod command If you need to remove an operating system user, use the userdel command You need root privileges to run the userdel command This example removes the oracle user ... involves several steps: Create the operating system dba group and the operating system oracle user CHAPTER ■ INSTALLING THE ORACLE BINARIES Ensure that the operating system is configured adequately...
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Tài liệu THE OPERATING SYSTEM MACHINE LEVEL-6 docx
... accounting; manipulate disk quotas; reboot the system Figure 6-29 A rough breakdown of the UNIX system calls Shell User program User mode System call interface File system Process management Block cache ... Figure 6-30 The structure of a typical UNIX system Kernel mode POSIX program Win32 program OS/2 program POSIX subsystem Win32 subsystem OS/2 subsystem User mode System interface System services ... Level Operating system machine level Operating system Level Instruction set architecture level Microprogram or hardware Level Microarchitecture level Figure 6-1 Positioning of the operating system...
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Hardening the operating system
... required, the user must re-enter the user password Expires the user s ticket Completing this option requires the user to re-enter the user password to update the ticket Removes the user s ticket ... Hardening the Operating System • Chapter 57 The lastlog command displays the users and services that have accounts on your machine It lists the last time each account logged in to the system, or if the ... SVR4, and NonStop-UX It also runs on MacOSX Server The Sudo Command The sudo command allows a user to execute a command as a superuser or another user All configurations for sudo are written to the...
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The Duality of Memory and Communication in the Implementation of a Multiprocessor Operating System
... 5.5 Fault Handling The Mach page fault handler is the hub of the Mach virtual memory system The kernel fault handler is called when the hardware tries to reference a page for which there no valid ... the concept of an extensible operating system is once again gaining acceptance this time as the solution to the unconstrained growth of UNIX During the last 20 years operating systems and their ... which there is a protection violation The fault handler has several responsibilities: • validity and protection - The kernel determines whether the faulting thread has the desired access to the...
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Programming the Be Operating System-Chapter 9: Messages and Threads
... between these windows, and the monitoring and reporting of user events such as mouse button clicks In short, the Application Server, and indirectly the classes of the Application Kit, allow the system ... looper and a handler) Throughout this chapter you’ll see several examples of the creating of messages and the dispatching of these messages both by the object that created them and by other objects ... example the BWindow object is both the looper and handler The menu item– generated message is placed in the window’s message loop, and the window object sends the message to itself and invokes the...
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Programming the Be Operating System-Chapter 10: Files
... control is in the hands of the user Once the user confirms a choice (whether it’s a file selection in the Open file panel, a click on the Save button in the Save file panel, or a click on the Cancel ... For the Save file panel, the display of the panel comes when the user chooses the Save As item from the File menu In response to the message issued by the system to the appropriate MessageReceived() ... to create the panel at any time, then display it only in response to the user s request For an Open file panel, that’s typically when the user chooses the Open item from the File menu For the...
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o'reilly learning the UNIX operating system
... Y Index: O operating system, definition of : The UNIX Operating System options, command : 1.2 Syntax of UNIX Command Lines output redirection operator (>) 5.1 Standard Input and Standard Output ... command : 3.6 Customizing Your Account UNIX accessing other platforms : 4.4.6 Files on Other Operating Systems command reference : B.1 Commands and Their Meanings documentation on : 7.1 Standard ... commands have commands of their own (For examples, look at the more, mail, and pg commands in Chapter Text editors like vi and emacs also have their own commands.) Once you start the command, it prints...
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Tài liệu Programming the Be Operating System-Chapter 1: BeOS Programming Overview ppt
... handle such tasks The zooming and moving of windows is handled by the system, not by the SimpleApp code This simple demonstration emphasizes the power of the BeOS system software—it is the system ... the user quits the program, Run() completes executing and the program ends You’ll notice in the above snippet that between Run() and return, there is no code Yet the program won’t start and then ... explicitly create threads, much of the work of handling threads is taken care of behind the scenes by the operating system itself For instance, when a window is created in a program, the BeOS creates and...
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Tài liệu Programming the Be Operating System-Chapter 2: BeIDE Projects docx
... project) The tools folder contains the compiler and linker (on the PowerPC version of the BeOS) or links to the compiler and linker (on the Intel version of the BeOS) On the PowerPC version of the ... doesn’t list these libraries—they’re linked in automatically The libroot.so library handles library management, all of the Kernel Kit, and the standard C library The libnet.so library handles networking, ... header file and source code file with the same name as the project (and thus the same name as the application that will be built from the project) The header file holds the definition of the class...
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Tài liệu Programming the Be Operating System-Chapter 3: BeOS API Overview doc
... that there is no connection between a window object created from the MyHelloWindow class and a view object created from the MyHelloView class until after the window object is created and the view ... illustrates the relationship between the BApplication and BLooper and BHandler classes Interface Kit With over two dozen classes, the Interface Kit is the largest of the Be software kits It’s also the ... another window Class Descriptions and the Be Book The definitive source of information for the many classes that make up the BeOS software kits is the Be class reference by the programmers of the...
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Tài liệu Programming the Be Operating System-Chapter 4: Windows, Views, and Messages doc
... when the user moves the cursor over the window As the user drags the mouse, repeated B_MOUSE_MOVED messages are issued by the Application Server As the cursor moves over one window to another, the ... is used instead, the result is the same the window’s corner ends up 100 pixels from the left and 50 pixels from the top of the screen The above scenario begs the question: if the coordinates of ... independent of the global screen coordinate system The type of system is the same as the global system (floating point values that get larger as you move right and down)—but the origin is different The...
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Tài liệu Programming the Be Operating System-Chapter 5: Drawing ppt
... user to select an RGB color without the user knowing anything about the RGB color system or RGB values What the BColorControl object displays to the user depends on the number of colors the user s ... MovePenBy(70.0, 10.0); The call to MovePenTo() moves the pen to the location 30 pixels from the left of the view and 40 pixels from the top of the view That places the pen at the point (30.0, 40.0) The call ... specified in the constructor The size is calculated by the constructor, and depends on the values supplied in the second and third parameters The matrix parameter specifies the shape of the block...
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Tài liệu Programming the Be Operating System-Chapter 6: Controls and Messages ppt
... it) The other picture acts as the button when the user clicks on the button You’ll supply a BPictureButton object with the two pictures, and the system will be responsible for switching back and ... button to a window, the height of the button may automatically be adjusted to accommodate the height of the text of the button’s label and the border of the button If the values of the frame rectangle ... allow the user to alter the behavior of the Beep push button Figure 6-9 The window that results from running the RadioButtonGroup program Preparing the window class for the radio buttons The MyHelloWindow.h...
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Tài liệu Programming the Be Operating System-Chapter 7: Menus docx
... and add it to the window, create the menu and add it to the menubar, and create the menu item and add it to the menu The menu-related code is identical to that used in the previous example (the ... on the order in which the view and menubar are added to the window.) If the view overlaps the menubar, mouse clicks may end up directed at the view rather than the menubar The menubar is created ... than the mouse To make the menubar the focus of keyboard keystrokes, the user presses both the Command and Escape keys Once the menubar is the target of keystrokes, the left and right arrow keys...
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Tài liệu Programming the Be Operating System-Chapter 8: Text ppt
... with the system message: a message that has a corresponding hook function to which the system passes the message A different type of message the system recognizes and reacts to is the standard ... change the color of the text in the theTextView text view object, the call to GetFontAndColor() omits the color and sameColor parameters: BFont uint32 font; sameProperties; theTextView->GetFontAndColor(&font, ... When the contents of the view a scrollbar is attached to exceed the size of the view, the scrollbar’s knob appears and the scrollbar becomes enabled As the content of the view increases, the scrollbar...
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Chapter 1 Introduction to Routing and Packet ForwardingRouting Protocols and Concepts quangkien@gmail.com.Topicsl Inside the Router Ÿ Routers are computers Ÿ Router CPU and Memory Ÿ Internetwork Operating System Ÿ Router Bootup Process Ÿ Router Ports doc
... boot system commands in startup-config file (NVRAM) If boot system commands in startup-config a Run boot system commands in order they appear in startup-config to locate the IOS b If boot system ... network and destined for another network? Decapsulates the Layer packet by removing the Layer frame header and trailer Examines the destination IP address of the IP packet to find the best path in the ... Router CPU and Memory l Internetwork Operating System l Router Bootup Process l Router Ports and Interfaces l Routers and the Network Layer Routers are Computers Leonard Kleinrock and the first...
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Learning the Unix Operating System pptx
... Y Index: O operating system, definition of : The UNIX Operating System options, command : 1.2 Syntax of UNIX Command Lines output redirection operator (>) 5.1 Standard Input and Standard Output ... command : 3.6 Customizing Your Account UNIX accessing other platforms : 4.4.6 Files on Other Operating Systems command reference : B.1 Commands and Their Meanings documentation on : 7.1 Standard ... commands have commands of their own (For examples, look at the more, mail, and pg commands in Chapter Text editors like vi and emacs also have their own commands.) Once you start the command, it prints...
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oracle database quick installation guide 10g release 1 (10.1.0.3) for the solaris operating system (x86)
... Create Required UNIX Groups and User The following local UNIX groups and user must exist on the system: ■ The oinstall group (the Oracle Inventory group) ■ The dba group (the OSDBA group) ■ The ... oracle This command creates the oracle user and specifies oinstall as the primary group and dba as the secondary group Enter the following command to set the password of the oracle user: # passwd ... oracle user (the Oracle software owner) The oinstall and dba groups and the oracle user may already exist on your system To determine whether they exist already, and if necessary, to create them,...
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Operating System Concepts - Chapter 21: The Linux System pot
... Operating System Concepts – 7th Edition, Feb 6, 2005 21.2 Silberschatz, Galvin and Gagne ©2005 Objectives To explore the history of the UNIX operating system from which Linux is derived and the ... Berkeley’s BSD operating system, MIT’s X Window System, and the Free Software Foundation's GNU project The system libraries were started by the GNU project, with improvements provided by the Linux ... Components of a Linux System (Cont.) The system libraries define a standard set of functions through which applications interact with the kernel, and which implement much of the operating- system functionality...
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labels and event processes in the asbestos operating system
... supplies the pathname of the pickle, the password (if any), and the desired privilege level, which must be greater than or equal to the level stored in the pickle The file system then checks whether ... allows the user to inject arbitrary SQL to run against a database and the other allows the user to start an arbitrary process Using these workers we logged in as a particular user and then tried ... measurements, we ran the server with one toy Web service that stores data from a user s HTTP request and returns it to the user in the subsequent request The size of the response is about KB The system uses...
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