General configuration hints

Usually, you should configure one system on your network to update the DNS. This can be either your router or a host on your network and it will run some software called the update client.

We have some specific configuration hints for some devices and update clients, please see the tabs above. If you don't find yours there, use the generic hints below.

Important note about security and compatibility: For update URLs, we always give the https (not: http) URL as that will use an encrypted connection to transfer your data (including your update secret). Depending on your update client (router firmware or PC software) and the specific nsupdate.info-based service, https might be not supported. So, if it does not work, you have the choice of using a different update client and/or a different service, or transmitting your data using an unencrypted connection (using http: instead of https:).
On {{ WWW_HOST }} https is {% if not WE_HAVE_SSL %}not {% endif %}supported.


Your update client needs to access the following URLs to update the DNS:

For IPv4 updates: For IPv6 updates: The IPs will be determined automatically using the remote address our service is seeing (see below for more details).

Your update client has to do the following steps:

Fritz!Box 6360, 7390 and maybe others:


Go to:
Internet Permit Access Dynamic DNS
Enter the following data:
SettingValue
Dynamic DNS providerCustom
Update-URLhttps://{{ WWW_IPV4_HOST }}/nic/update
Domain Name{{ host.get_fqdn|default:"<your hostname>" }}
User name{{ host.get_fqdn|default:"<your hostname>" }}
Password{{ update_secret|default:"<your secret>" }}
If you have IPv4 and IPv6
Set Update-URL to the following (two URLs, separated by one space)
https://{{ WWW_IPV4_HOST }}/nic/update https://{{ WWW_IPV6_HOST }}/nic/update
Forcing a dynamic DNS update
If you want to force a dynamic update for testing purposes, you can do it like this:

DD-WRT

Go to:
Setup DDNS
Enter the following data:
SettingValue
DDNS ServiceCustom
DYNDNS Server{{ WWW_IPV4_HOST }}
User name{{ host.get_fqdn|default:"<your hostname>" }}
Password{{ update_secret|default:"<your secret>" }}
Host Name{{ host.get_fqdn|default:"<your hostname>" }}

ddclient

ddclient is a popular dyndns update daemon on Linux.

# /etc/ddclient.conf

# this will update your ipv4 address to the address
# the web service sees requests coming from:
protocol=dyndns2
use=web, web=http://{{ WWW_IPV4_HOST }}/myip
ssl=yes  # yes = use https for updates
server={{ WWW_IPV4_HOST }}
login={{ host.get_fqdn|default:"<your hostname>" }}
password='{{ update_secret|default:"<your secret>" }}'
{{ host.get_fqdn|default:"<your hostname>" }}

# ddclient releases <= 3.8.1 do not support ipv6,
# but there is a patch for ipv6 from Eduardo Trapani.
# using such a patched ddclient, the following should work:
#
# this will update your ipv6 address to the interface address:
#protocol=dyndns2
#usev6=if, if=eth0
#ssl=yes  # yes = use https for updates
#server={{ WWW_IPV6_HOST }}
#login={{ host.get_fqdn|default:"<your hostname>" }}
#password='{{ update_secret|default:"<your secret>" }}'
#{{ host.get_fqdn|default:"<your hostname>" }}

Browser-based update client

These URLs invoke the built-in update client, which is intended for temporary and adhoc scenarios only. It periodically checks your IP and updates DNS if it changes.

Update URLs for browser / http user agent use

Interactive - will ask for username (give your hostname) and password (give your secret): Giving the http basic auth username and password in the URL: As above, but manually specifying the IP address: Explanation of parameters: