Am 03.08.2015 um 13:38 schrieb Harshith Mulky:
I wanted to understand how Order and Preference Values have an impact on the answers Received from the DNS Server I am asking because, I have 4 records for NAPTR Query, as below carrier1.com 86400 IN NAPTR 50 50 “s” “SIPS+D2T” ““ “_sips._tcp.carrier1.com.” carrier1.com 86400 IN NAPTR 90 50 “s” “SIP+D2T” ““ “_sip._tcp.carrier1.com.” carrier1.com 86400 IN NAPTR 100 100 “s” “SIP+D2U” ““ “_sip._udp.carrier1.com.” carrier1.com 86400 IN NAPTR 120 100 “s” “SIPS+D2U” ““ “_sip._tcp.carrier1.com.” I am expecting to receive the answer as _sip._udp.carrier1.com but i receive _sip._tcp.carrier1.com
randomly https://en.wikipedia.org/wiki/Round-robin_DNS
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