What is Ping Death?
death ping is a form of "rejection of the service" that can be triggered against a computer, router, server, printer and other devices over the network such as the Internet. This type of attack has become quite popular among malicious computer users at the end of the 90s who wished to overwhelm and close other computers and servers. Since then, however, these types of attacks have been mostly eliminated to repair the operating system software (OS) for computers and servers. The death attack consists of a signal sent to a computer or other device that is actually greater than what the device can handle, leading to switching off, restarting or freezing the system. Understand what is Ping of Death is often the simplest, what is "ping" in general. Ping is a signal sent between two computers or similar systems that are used to evaluate the speed at which the signal can transmit between systems and evaluate any signal loss. At the beginning of the 80s.Sonar to detect objects based on reflected sound waves.
According to standard Internet protocols (IP), the largest size of the IP packet that can be sent, 65,535 bytes. It is not an absolute limit, but has been set as a practical limit for systems to be organized. However, one of the main features of IP communication is fragmentation, which allows the division of a large packet into smaller packets that are transmitted and re -assembled before processing the receiving system. In the age of 90, people found that using this fragmentation could be sent smaller packets as a signal that once re -assembled, 65,535 bytes excelled; When this message, death ping, then processed, it would cause shutdown, restarting or freezing of the receiving system.
As soon as Ping of Death started burning, software designers quickly found ways to protect systems. Finally the patches were issuedY for existing software and hardware, with later software using similar protection to allow systems to determine the size of the fragmented packet before re -assembly and to drain the packet if it exceeds the size limitation. Although it is unlikely that the death attack on most modern systems would work, there are other types of attacks on the denial of services that replaced it, such as the flood of ping.