{"id":812,"date":"2011-01-30T06:24:55","date_gmt":"2011-01-30T06:24:55","guid":{"rendered":"http:\/\/wiki.davelevy.info\/?p=812"},"modified":"2023-04-27T08:26:16","modified_gmt":"2023-04-27T08:26:16","slug":"ddclient","status":"publish","type":"post","link":"https:\/\/davelevy.info\/wiki\/ddclient\/","title":{"rendered":"ddclient"},"content":{"rendered":"

ddclient<\/i> is a program for Linux that negotiates with http:\/\/dyndns.com<\/a> to allow systems with dynamic tcp\/ip addresses to have static DNS names. This was originally written in 2011, and revisited in 2013. dyndns abandoned their free product some time ago, possibly as a result of being bought by Oracle. I marked the page is ‘deprecated’ on 4th Feb 2019. The rest of this article comprise my notes on how to install ddclient on an AMI. <\/p>\n

2013<\/h3>\n

I made a new Amazon machine. Don’t muck around, install ddclient using apt-get. The post install script now takes you through the critical configuration questions and writes a .conf file.<\/p>\n

If you make the AMI first, you have the AWS public IP address from the public ip name. The curl command below also still works<\/p>\n

    \n
  1. Make a dns name at dyndns.org, use the AMI public ip address<\/li>\n
  2. Install ddclient using apt-get<\/li>\n
  3. Choose www.dyndns.com<\/li>\n
  4. Provide your login\/password<\/li>\n
  5. Select checkip.dyndns.com<\/li>\n
  6. Use select from list<\/li>\n
  7. Select your domain name<\/li>\n
  8. Wait for the name to propagate <- most imortant<\/li>\n<\/ol>\n

    2011<\/h3>\n

    I decided to use ddclient to keep a constant name on my Amazon EC2 Machine<\/a>. This was an Ubuntu image. I therefore have the choice of using the package manager or a tarball install, although the latter is not automated.<\/p>\n

    Obtaining the Package from dyndns<\/h3>\n

    I originally downloaded it from dyndns.com and installed it on my, now defunct<\/em>, Cobalt Qube.<\/p>\n

    This section was written in 2011 when I replaced my Cobalt Qube with an AMI.<\/p>\n

    I used wget<\/i> to pull down http:\/\/cdn.dyndns.com\/ddclient.tar.gz. This was version 3.7.3. It has a README<\/b> which documents how to install the client. I used update-rd.d<\/i> to install the start\/stop script which I called rc.ddclient. I used the debian sample as my model. This required the addition of the LSB Init Headers<\/a>. I added the login credentials to the appropriate configuration file.<\/p>\n