Create OPENPGPKEY record Create OPENPGPKEY record

Dynu gives you full control over all the DNS configurations for your domain names. You can log onto the control panel to manage your DNS records.

What is an OPENPGPKEY record?

OPENPGPKEY records, specified in RFC 7929, allow OpenPGP public keys to be published directly in DNS. This makes it possible for email clients to automatically retrieve the correct public key for an email address via a DNS query, enabling end-to-end encrypted email without relying on key servers or manual key exchange.

How to add an OPENPGPKEY record?


To add an OPENPGPKEY record in the control panel, you may follow these 3 steps.

Listing Item Step 1

Log into control panel, go to Dynamic DNS Service Icon DDNS Services  and click on your domain name.

Listing Item Step 2

Go to DNS Records Icon DNS Records  to add an OPENPGPKEY record. The screenshot below shows how to add an OPENPGPKEY record for dynu.biz.

Node Name  The SHA-256 hash of the local part of the email address, truncated to 28 octets, followed by ._openpgpkey. For example, for alice@dynu.biz this would be the hash of alice. Most OpenPGP tools can generate this value automatically.

Type  Choose "OPENPGPKEY - OpenPGP Key".

TTL  How long the server should cache the information. The TTL is set in seconds, 60 is 1 minute, 1800 is 30 minutes.

Public Key  The OpenPGP public key data encoded in Base64. This can be exported from your OpenPGP application using a command such as gpg --export alice@dynu.biz | base64.

OPENPGPKEY Record Dynu Dynamic DNS


Listing Item Step 3

Check if your OPENPGPKEY record has gone into effect using the DNS Lookup tool. Enter 0357513deb903a056e74a7e475247fc1ffe31d8be4c1d4a31f58dd47._openpgpkey.dynu.biz as Hostname, and choose "OPENPGPKEY - OpenPGP Key" as Type.

OPENPGPKEY Record Dynu Dynamic DNS
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