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DNS

SRV records

Advertise a service — calendar, chat, VoIP — on a specific host and port.

1 min read Updated

An SRV record tells software where to find a particular service for your domain: which server, and which port. Calendar and contact sync, instant messaging, VoIP and some email clients look for them.

You only need one when a service's set-up instructions ask for it.

Add an SRV record

  1. Open the domain's DNS records: Domains → the domain → Manage DNS.
  2. Under Add a record, choose SRV.
    Adding an SRV record
  3. Fill in the fields from the service's instructions:
FieldMeaningExample
NameThe service and protocol, with underscores_sip._tls
ValueThe server that runs the servicesip.provider.example
PriorityLower is tried first10
WeightShares traffic between servers of the same priority5
PortThe port the service listens on443
  1. Choose a TTL and click Add record.

Note

Type the name exactly as given, including both underscores: _service._protocol. The domain itself is added automatically after it.

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