I use syslog-ng to receive  remote logs.

In the conf of syslog-ng I use ‘use_dns(yes)’ option .

My question is :

 there is a  remote host  which has one ip 10.23.245.158,and two dns: build-la21.com and  lrh- build-la21.com,

       which dns will syslog-ng choose when receive logs from the remote host?