do not lose track of which client a dns request is for
do not lose track of which client a dns request is for

PrFalken/exaproxy,jbfavre/exaproxy,david-farrar/exaproxy,PrFalken/exaproxy,david-farrar/exaproxy,jbfavre/exaproxy,PrFalken/exaproxy,david-farrar/exaproxy