Create DHCID record Create DHCID 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 a DHCID record?

DHCID records, specified in RFC 4701, are used to associate a DNS domain name with the DHCP client that owns it. They help prevent conflicts when multiple DHCP clients attempt to register the same hostname, ensuring that only the legitimate client can update or modify the corresponding DNS records.

How to add a DHCID record?


To add a DHCID 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 a DHCID record. The screenshot below shows how to add a DHCID record for dynu.biz.

Node Name  The host name for this record. For example, leave it blank for the root domain or enter clienthost to apply the record to clienthost.dynu.biz.

Type  Choose "DHCID - DHCP Identifier".

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

Record Data  The DHCID data in Base64 format. This value is typically generated by the DHCP server and contains a one-way hash that uniquely identifies the DHCP client associated with the hostname.

DHCID Record Dynu Dynamic DNS


Listing Item Step 3

Check if your DHCID record has gone into effect using the DNS Lookup tool. Enter clienthost.dynu.biz as Hostname, and choose "DHCID - DHCP Identifier" as Type.

DHCID Record Dynu Dynamic DNS
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