Ping takes its name from the technique of measuring distance with sonar.  In IRC, it is used to measure the time it takes to send a message to someone, and receive a response.  Specify a channel to ping everyone in that channel.  Some IRC clients will display ping requests to the user.  ChatZilla does not.
Ping takes its name from the technique of measuring distance with sonar.  In IRC, it is used to measure the time it takes to send a message to someone, and receive a response.  Specify a channel to ping everyone in that channel.  Some IRC clients will display ping requests to the user.  ChatZilla does not.