How do I set up a SRV record on my domain?
This article will show you how to add a SRV Record to your domain name.
A SRV record is a DNS entry that specifies information about a service that is available on your domain, most important, being the location of the service inside that domain.
To set up a SRV record on your domain name, you’ll first need to ensure your domain is pointed to the 123 Reg nameservers. Otherwise, any configurations you’ve made to the DNS through our Control Panel will not take effect.
You will need to set your DNS at your nameserver provider. For more information on how to do this, please view the following article: How do I change the nameservers for my domain name?
Please note: it will take between 24-48 hours for any new nameserver changes to become active.
Once you’ve done this, simply follow these instructions:
Start by logging in to your 123 Reg Control Panel.
From there, select Domain Names within the ‘Manage active products’ section. Next, choose your domain name from the provided list and then select Manage.
Scroll down to the Advanced Domain Settings section and click Manage DNS.
Select the Advanced DNS tab near the top.
For your new record, choose SRV from the Type drop-down list.
Your host name specifies the name of the server providing the service. This can be either: _sipfederationtls_tcp.testing.com. or you can take the domain away to show just _sip.
Please note: When entering the long form host name (for example: _sipfederationtls_tcp.testing.com.) it is important to add the full stop at the end of the Host name.
The priority represents the prominence the record gets given. This can range from 0 to 65535, with 0 being the highest priority.
Your TTL specifies how long the record takes to resolve. This should be measured in seconds, for example, one hour equals 3600 seconds, so your TTL would be 3600.
Your destination is where the traffic is being sent to. This should show the Weight followed by the Port, and then the domain name. The values must be separated with a space and should be displayed like this: 1 5061 testing.com.
When complete, click the Add button. Your SRV record will now be created.
Please note: it will take between 4-8 hours for any DNS records to become active, provided you didn’t also change the nameservers.
Additionally, some services, such as Microsoft 365, will require multiple SRV records to be created:
1) sip SRV record
- Hostname: _sip._tls
- Priority: 100
- TTL: 3600
- Destination SRV: 1 443 sipdir.online.lync.com.
2) sipfederation SRV record
- Hostname: _sipfederationtls._tcp
- Priority: 100
- TTL: 3600
- Destination SRV: 1 5061 sipfed.online.lync.com.
Once created, they should look something like this: