Hardening the operating system
Hardening the operating system
... for
system troubleshooting.They are large and exploitable if a hacker gains control
of them: they can grow and consume your file system.
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34 Chapter 2 • Hardening the Operating System
466_HTC_Linux_02.qxd ... administrator’s preferences based on the
answers to the questions, and saves them in the /root/Bastille/config file, as shown in
Figure 2.8.
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Tài liệu THE OPERATING SYSTEM MACHINE LEVEL-6 docx
... virtual ad-
dresses on the UltraSPARC. (a) TLB. (b) TSB. (c) Translation
table.
Level 1
Level 2
Level 3
Operating system machine level
Microarchitecture level
Operating system
Instruction set ... mappings on the UltraSPARC.
Valid
Physical
page
Virtual
page
Flags
(a)
TLB (MMU hardware)
Context
Valid
Physical
page
Virtual
page
tag
Flags
(b)
(c)
Format is
entirely
defined by
the o...
The Duality of Memory and Communication in the Implementation of a Multiprocessor Operating System
... architectures.
Today, 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 ... tasks.
Many other operating systems have met with this problem. Often these systems solve the problem by using inside
knowledge of the algorithms used to...
Programming the Be Operating System-Chapter 9: Messages and Threads
... Be, Inc. set out to develop a new operating system one they
eventually dubbed the Media OS. The goal was to create an operating system that
could keep up with the computationally intensive demands ... sev-
eral examples of the creating of messages and the dispatching of these messages
both by the object that created them and by other objects.
Figure 9-1. The inheritance h...
Programming the Be Operating System-Chapter 10: Files
... 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() ... 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 S...
o'reilly learning the UNIX operating system
... file1
appends the contents of file2 to the end of file1. For an example, let's append the contents of the file
users, and also the current date and time, to the file diary. Then we display the file:
% ... /etc/passwd displays the file
/etc/passwd on the screen. The example above adds the > operator; so the output of cat goes to a file
called password in the...
Tài liệu Programming the Be Operating System-Chapter 1: BeOS Programming Overview ppt
... during the execution of a program. An
object can be added or deleted from the heap without regard for its
placement in the heap, or for the other contents of the heap. The
stack, on the other hand, ... such tasks. The zoom-
ing and moving of windows is handled by the system, not by the SimpleApp code.
This simple demonstration emphasizes the power of the BeOS system...
Tài liệu Programming the Be Operating System-Chapter 2: BeIDE Projects docx
... stated that the header file that bears the name of the project should hold
the declaration of the project’s application class the class derived from the
BApplication class. Here you see that the HelloWorld.h ... HelloApplication();
};
The source code file with the name of the project should hold the code for the
implementation of the member functions of the applic...
Tài liệu Programming the Be Operating System-Chapter 3: BeOS API Overview doc
... to them, some of
their classes appear throughout the book. See the description of the Support Kit
below for a specific example concerning the BLocker class.
Application Kit
The classes of the ... created in the application constructor, the
MyHelloWindow constructor is responsible for creating a new view, adding the
view to the new window, and then displaying the new wind...
Tài liệu Programming the Be Operating System-Chapter 4: Windows, Views, and Messages doc
... If the point (100.1, 49.9) is used instead, the result is the same the win-
dow’s corner ends up 100 pixels from the left and 50 pixels from the top of the
screen.
The above scenario begs the ... altered—as they are
here with the writing of the string “Quitting ” the view needs to be updated
before the changes become visible onscreen. If the changes are made while t...