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The Java 2 Class File Format

April 8, 2020 Krishna assembler language, Class File Contents, Decompilation Attacks, decompiler, Entertainment, hexadecimal number, Java 2 Network Security, Java 2 SDK, Java Development Kit, JVM, Migration of applications, Modern compilers, The Java 2 Class File Format

The class file contains a lot more information than its cousin, the executable file. Of course, it still contains the

The Java Development Life Cycle

April 8, 2020April 8, 2020 Krishna C#, Class Files in Java 2, COBOL, Compiler Models, Count.class file, Disassembled Count.class File, JAR files, Java 2 Network Security, Java compiler, JVM, low-level machine language, Native Compiler, NetREXX, The Java Development Life Cycle

Moving back to the world of Java, we see that it is a high-level programming language and that bytecode is

Class Files in Java 2

April 8, 2020 Krishna Class Files in Java 2, executable, Java bytecode, Java Virtual Machine, object file, OPERATING SYSTEM, Program Compilation and Linking, program file, source file, The Traditional Development Life Cycle

The Traditional Development Life Cycle Java is a compiled language. That is, source code is written in a high-level language

The Java Virtual Machine

April 6, 2020 Krishna Close Up, Java 2 Network Security, JIT compilation, Just-in-Time Compilers, The Class Area, The Class File Verifier, The Class Loader, The Execution Engine, The Heap, The Java Virtual Machine, The Native Method Loader, The Security Manager, Trusted Classes, Untrusted Classes

Understanding how the various components of the Java Virtual Machine (JVM) cooperate to provide a secure execution environment will enable

Security Management with Java 2

April 6, 2020 Krishna Applying a Security Manager to Applets and Applications, Applying a User-Defined Security Policy, Java 2 Network Security, Java 2 SDK, Java Application, Java Security Debugging, MySecurityManager, Security Debug Information, Security Management with Java 2, Security manager, The New Java Security Model

In this article we show you how to apply the security features of Java 2 to applets and applications running

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Kernel Modules Versus Applications

April 2, 2020April 2, 2020 Krishna Concurrency in the Kernel, kernel, Kernel Modules Versus Applications, kernel programming, Linking a module to the kernel, Linux, Linux kernel code, The Current Process, ubuntu, User Space and Kernel Space

Before we go further, it’s worth underlining the various differences between a kernel module and an application. Whereas an application

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Version Numbering & License Terms

April 2, 2020 Krishna bug, COPYING, development, experimental kernels, General Public License, GNU, GPL, License Terms, status of development, Version Numbering & License Terms, versions

Version Numbering Before digging into programming, we’d like to comment on the version numbering scheme used in Linux and which

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Security Issues

April 2, 2020 Krishna capability mechanism, encoding security policy, exploiting bugs, general security, incidental, kernel, policy issue, security check, security issue, Security Issues, superuser shell

Security is an increasingly important concern in modern times. We will discuss security-related issues as they come up. There are

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Classes of Devices and Modules

April 2, 2020 Krishna Block devices, Character devices, classes, Classes of Devices and Modules, filesystem, Linux, Network interfaces, software device

The Unix way of looking at devices distinguishes between three device types. Each module usually implements one of these types,

Splitting the Kernel

April 2, 2020 Krishna Device control, Filesystems, kernel, Memory management, NETWORKING, Process management, Splitting the Kernel, unstructured hardware

In a Unix system, several concurrent processes attend to different tasks. Each process asks for system resources, be it computing