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Updating Dynamic IP Address Automatically September 8, 2005

Posted by Carthik in administration, ubuntu.

If you have a server running at home, using Ubuntu – file server, webserver, ssh server or the kind – using a service such as zoneedit.com or dyndns.org to provide you with DNS services so that you can access your server using a URL, then you might have to update your DNS record at the service periodically whenever the IP address of your computer changes.

Experts recommend that you use ddclient, which updates the IP address whenever it changes. You can install it from the ubuntu repositories by doing a

$sudo apt-get install ddclient

and configure it as neccessary. If you can’t find the public IP address, then you can have ddclient check your public IP address from the web by editing /etc/ddclient.conf and making it use the web by saying:

use = web



1. Frank - January 12, 2006

Ddclient funktioniert bei mir schön per Kommandozeile, sudo ddclient. Aber wie lasse ich ddclient regelmäßig laufen?
Habe was in /etc/init.d gefunden, kann aber damit nix anfangen.

2. Semmelini - January 16, 2006

Trag einfach folgendes noch in die ddclient.conf ein

daemon=300 (Zeitdauer in sek.),
syslog=yes (log 2 /var/log/syslog)

Zeitdauer nicht kürzer als 300 sek, setzen, sonst wirste gesperrt, da es als DoS aufgefasst wird.

Hope this helps

3. Chief - March 15, 2007

doesn’t work for me

I have to use
use=web, web=checkip.dyndns.org/, web-skip=’IP Address’ # found after IP Address

4. Srikanth - April 1, 2007

ya same problem to me too.. use web is not updating the dyndns. Couldnt find anything in syslog when i used ddclient -syslog

5. Seth - March 4, 2008

Mine seems to work now, thanks!

6. Fireside Chats » Blog Archive » Upgraded Server and Wordpress Blog - April 24, 2008

[…] replaced eponym with ddclient which is recommended by both dyndns and some ubuntu […]

7. Anoop - August 16, 2008

i need updating ip address from my modem/router so how should be my config with ddclient ?

8. seks izle - September 29, 2010

Zeitdauer nicht kürzer als 300 sek, setzen, sonst wirste gesperrt, da es als DoS aufgefasst wird.

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