16. The method of claim 14 , further comprising: receiving a request comprising an indicator that the request should be executed by the members only if all members receive the request; sending the request to the members of the group with a tag or group id indicating to the members that they should acknowledge the request but not execute it yet; receiving acknowledgements from the members; and sending a message to the members to execute the request if all members acknowledged the request.
14. The method of claim 10 , further comprising: receiving over the second interface a request, the request comprising a domain name and a group identifier and optional parameters; resolving the members of the group; sending the request to the members; receiving response from the members; and sending a response to the sender of the request.