1. A method for communicating data between servers, comprising: detecting by a first computer a request to a second computer; sending the request and an unknown service identifier to the second computer by the first computer, the unknown service identifier generated by the first computer to identify the second computer in response to determining that an identity of the second computer is not known to the first computer, wherein the unknown service identifier is part of a call chain sent from the first computer to the second computer; transmitting the unknown service identifier and request information to a server by the first computer; transmitting the unknown service identifier and a second computer identifier to the server by the second computer, the second computer identifier identifying the second computer; and receiving the second computer identifier by the first computer from the server, the first computer sending a subsequent request to the second computer with the second computer identifier.