What Is a Dns Srv Record?
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What Is a DNS Srv Record?
The SRV record is a DNS (Domain Name System) resource record. SRV record is used to recognize the specific hosting service by computers, for example, the location, hostname, and port numbers of servers for the service. It is also used to locate the controller of the domain for the active directory. Internet protocol such as the (XMPP) Extensible Messaging and Presence Protocol and (SIP) session initiation protocol needs SRV support by network elements.
Components:
The components of the DNS SRV record are as follows.
Port: The SRV record in DNS has the following format,
Ports on the network are the actual places that decide which processes on the computer are executed by the traffic network. With the ports, computers are able to differentiate between the different types of traffic. Same as an internet protocol address each port is assigned a specific number. Some protocols like XMPP, SIP, and IMAP link to the particular port along with the specific service server. Within the DNS how ports are specified is discussed by SRV records.
Format record:
_service._proto.name. TTL class type of the recording priority weight target port. In this format, the terms are following,