Learn about data deduplication and how this process impacts data storage efficiency by eliminating redundancy, reducing costs, and enhancing integrity.
Exception handling is a technique in programming to handle runtime errors, allowing the program to execute and recover when unexpected situations occur. Instead of showing errors and terminating a program, exception handling provides a structure to deal with errors and manage them appropriately. With ...
The next part of the ICMP header is the pointer. It consists of 32 bits of data that point out the problem in the original IP message. Specifically, the pointer identifies the byte location in the original IP message that caused the generation of the problem message. The receiving device lo...
pointer that calls the virtual node turns to shellcode. Another operation M→tail→head=M→head during the removal from the linked list can also be used to implement attacks. Heap spraying attack: Heap spraying is a technique used by the attacker in exploits to enable the execution of ...
(SEH), a built-in system for managing hardware and software exceptions. It thus prevents an attacker from being able to make use of the SEH overwrite exploitation technique. At a functional level, an SEH overwrite is achieved using a stack-based buffer overflow to overwrite an exception ...
Another technique that helps prevent buffer overflow attacks isexecutable space protection(on Windows: data execution prevention – DEP). Thanks to this technique, the attacker cannot execute code if it is located in the memory space assigned to the stack or heap and in some cases, also other ...
This code is perfectly valid Java 8. The first line defines a function that prepends “@” to a String. The last two lines define functions that do the same thing: get the length of a String. The Java compiler is smart enough to convert the method reference to String’slength()method...
ASCII characters can be combined graphically to create an image. ASCII art is a common technique for creating graphical images on text-only media like a computer terminal or text-only printer. For example, this ASCII art is an example of an early emoji. ...
Using OS runtime protections like ASLR. Address space layout randomization (ASLR) is a security technique used to prevent buffer overflow attacks. It works by randomizing the memory addresses where system libraries, executable code, and data are loaded. By enabling ASLR, the attackers won't predi...
What Is a DMZ Network? The internet is a battlefield. Some people want peace, and others want to sow chaos. The two groups must meet in a peaceful center and come to an agreement. When developers considered this problem, they reached for military terminology to explain their goals. ...