Change PTR records

PTR records are used to reverse lookup; that is, to lookup a hostname for an IP address.

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Change a PTR record using the control panel

PTR records are used for reverse DNS lookups. Instead of resolving a name to an IP address, a PTR record resolves an IP address to a name.

These PTR records can be modified under IP addresses in the control panel. On the Overview tab, you can see all your IP addresses, both reserved and those in use on a server.

To change the PTR record, click the pencil icon to the right of the IP address.

A dialog box will open where you can enter the new FQDN (fully qualified domain name) for the IP address. Note that the name must end with a period. The period indicates the top of the DNS hierarchy.

Once you have entered the new name, click Update.

You can now test whether the IP address points to the correct name using the host command:

Command

host 203.0.113.49

Output

49.113.0.203.in-addr.arpa domain name pointer labserver1.glesys.com.

Change a PTR record using the API

1. To check the current PTR record for an IP address using the API, use the ip/details endpoint.

2. To change the PTR record for an IP address, use the ip/setptr endpoint.