Abstract: Various embodiments enable parallel querying of multiple network interfaces for communication configuration information. Returned communication configuration information can be used by a client device to enable communication with another computing device. In some embodiments, multiple responses to the parallel queries are received. Alternately or additionally, a response from a network interface can be determined through expiration of a user-configured timeout and/or a protocol configured timeout. Selection of a network interface from the multiple responses can be based, at least in part, on prioritizing the responding network interfaces using an adaptive selection algorithm.

Abstract: In one or more embodiments, clients in various networks can proactively probe multiple proxies that are returned to the client. Clients can sort the proxies based on various parameters, such as connection time parameters as well as other parameters, and utilize the fastest or one of the fastest proxies available, or select a proxy based on other parameters that indicate the proxy is reliable. In this manner, slow or unreliable proxies can be avoided.