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Ping measures the round-trip time for messages sent from the originating host to a destination computer that are echoed back to the source. The name comes from active sonar terminology that sends a pulse of sound and listens for the echo to detect objects under water. [1] Ping operates by means of Internet Control Message Protocol (ICMP) packets.
Some commands are actually sent to IRC bots; these are treated by the IRC protocol as ordinary messages, not as /-commands. Conventions used here: Angle brackets ("<" and ">") are used here to indicate a placeholder for some value, and are not a literal part of a command. Square brackets ("[" and "]") are used to indicate that a value is optional.
TextFree (formerly called Pinger and sometimes stylized as textfree) is a mobile application and web service that allows users to send and receive text messages, as well as make and receive VoIP phone calls, for free over the internet. The service costs nothing because it is supported by ads, but users have the option of paying for an ad-free ...
The traceroute command can be implemented by transmitting IP datagrams with specially set IP TTL header fields, and looking for ICMP time exceeded in transit and destination unreachable messages generated in response. The related ping utility is implemented using the ICMP echo request and echo reply messages.
Trigger a notification to one or several registered user(s) you are replying to in a discussion. Template parameters [Edit template data] Parameter Description Type Status Username #1 1 The name of the first user that you want to notify User required Username #2 2 The name of the second user you want to notify (optional) User optional Username #3 3 The name of the third user you want to notify ...
Some of the message types shown above, such as Ping and Set Client/Server Bandwidth, are considered low level RTMP protocol messages which do not use the AMF encoding format. Command messages on the other hand, whether AMF0 (Message Type of 0x14) or AMF3 (0x11), use the format and have the general form shown below:
In 2010, almost half a million silent SMS messages were sent by the German federal police, customs and the federal domestic intelligence service Verfassungsschutz. [67] [68] These silent messages, also known as silent TMS, stealth SMS, stealth ping or Short Message Type 0, [69] are used to locate a person and thus to create a complete movement ...
However, ping time may differ from experienced RTT with other protocols since the payload and priority associated with ICMP messages used by ping may differ from that of other traffic. End-to-end delay is the length of time it takes for a signal to travel in one direction and is often approximated as half the RTT.