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[citation needed] The lower one's ping is, the lower the latency is and the less lag the player will experience. High ping and low ping are commonly used terms in online gaming, where high ping refers to a ping that causes a severe amount of lag; while any level of ping may cause lag, severe lag is usually indicated by a ping of over 100 ms. [4]
This time delay includes propagation times for the paths between the two communication endpoints. [1] In the context of computer networks, the signal is typically a data packet . RTT is commonly used interchangeably with ping time , which can be determined with the ping command .
Packet loss is either caused by errors in data transmission, typically across wireless networks, [1] [2] or network congestion. [3]: 36 Packet loss is measured as a percentage of packets lost with respect to packets sent. The Transmission Control Protocol (TCP) detects packet loss and performs retransmissions to ensure reliable messaging.
[1] [2] The backronym Packet InterNet Groper for PING has been used for over 30 years, and although Muuss says that from his point of view, PING was not intended as an acronym, he has acknowledged Mills' expansion of the name. [1] [3] The first released version was public domain software; all subsequent versions have been licensed under the BSD ...
A ping flood is a simple denial-of-service attack where the attacker overwhelms the victim with ICMP "echo request" packets. [1] This is most effective by using the flood option of ping which sends ICMP packets as fast as possible without waiting for replies.
In the case of a ping flood or a denial of service attack, it can be harmful to the reliability of a computer network. Messages can become duplicated in the network further increasing the load on the network as well as requiring an increase in processing complexity to disregard duplicate messages.
A ping of death is a type of attack on a computer system that involves sending a malformed or otherwise malicious ping to a computer. [1] In this attack, a host sends hundreds of ping requests with a packet size that is large or illegal to another host to try to take it offline or to keep it preoccupied responding with ICMP Echo replies. [2]
The Fortuna random number generator is an example of an algorithm which uses this mechanism. Generate passwords and passphrases using a true random source. Some [clarification needed] systems select random passwords for the user rather than let users propose their own.