RFC 2782 and SRV Records
September 27th, 2013
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Some protocols such as SIP and XMPP require SRV records. SRV records have the form
_service._proto.name TTL class SRV priority weight port target
Example DNS entry with A and SRV record:
host.yourdomain.com 86400 IN A 195.88.229.113
_sipfederationtls._tcp.yourdomain.com 86400 IN SRV 0 5 5061 sip.yourdomain.com. < == (which can be the SIP/SIP-TLS service on host.yourdomain.com) Read more…