Do this stuff first. Decide where to run your Kubernetes cluster. The DDNS application should be running on the same home network as your self-hosted services, since the app works by checking its own network IP. This very good tutorial shows us how to set up a cluster on a new Raspberry Pi. The Raspberry Pi is now a single-node Kubernetes cluster!
The Raspberry Pi will appear in the KubeSail clusters dashboard after a minute or so. In the dashboard under Clusters , select the new cluster and give it a name. Then select Namespaces from the sub-menu. This is where you can add a new Kubernetes namespace , or use a default namespace called default. So now we have a cluster, a namespace, and a user —all the parameters required for our Kubernetes context. I previously talked about the basic concepts behind Docker and Kubernetes. YAML is used to write instructions to deploy and manage your containers.
You can browse these examples, and cobble together relevant YAML samples to customize your own Kubernetes apps. Under Templates , I made this one for ddclient. The ddclient template has two kinds of Kubernetes resources. Fork the template on this page. The usage page describes the most parts of the configuration while the supported protocols page describes the protocol-specific options.
If you want to know how to use ddclient with your router, check the supported routers. Debugging ddclient looks pretty hard but it isn't. First try to put as less as necessary in your configuration. Try to run. If this doesn't work for you, there are a few places where you can look for help. If you need any help in configuring ddclient, You could try ddclient --help. It should give you all the possible configuration options so. If you think your configuration is correct, but ddclient doesn't work as you expected, you can enable debug and verbose messages by running.
We know the manual is not very clear, you have to read the example configurations included in the tar-file or you can run ddclient --help to get more help. If you need extra help, have any bug to report, an enhancement to submit or a feature request, you can use the ddclient mailing list or create a new ticket. Please only post bugs against the latest version of ddclient. If you want to provide a patch for ddclient, please use a pull request on github.
It's the easiest way of working. If you need anymore info about supported routers or supported protocols , check the other pages. Other options are described here. You can put all the needed parameters in the configuration file. The configuration file, ddclient. Unfortunately, namecheap doesn't let you restrict the dynamic DNS to just one subdomain.
Next, navigate to "All host records" add a DNS A record for your domain use the symbol for this , or subdomain. Use the dummy IP address The above configuration would work fine if ddclient was installed on a router, since the router knows your WAN IP address.
There is a configuration parameter called use , which determines the method ddclient uses to find the WAN IP. If you specify it below, it won't work! This caused me quite a lot of grief. The default value for use is if , which uses information from the netwrok interface think ifconfig.
There are two more types of value you can set: web , and router firmware values like fw and linksys. Although I haven't opted for the router firmware method, I think it's quite interesting and worth discussing.
Router firmware settings look something like this:. If the status page is not available to unauthenticated users, you must set the username and password to allow ddclient to authenticate with the router. Some popular router manufacturers have their own settings for ease of use, for example if you have a Linksys router you can use this line:.
Note that since a lot of routers won't let more than one user log in as admin at a time, you could potentially prevent ddclient from updating your dynamic IP address if you are logged in yourself at the same time.
The web method involves ddclient querying one of the many "what is my ip" type web services on the internet, and extracting your IP address from the page returned. You can tell ddclient to use this method by using this line:. Similarly to other methods, you can also specify which website to use with the web-skip parameter.
Some options with preset values are dnspark , dyndns and loopia , although you can use any site you like. For example, you could use somedomain. Remember how I said anyone with your dynamic dns password can change your DNS records? Sending your password via http not https is a bad idea. This parameter will force https:. To test your ddclient configuration with really verbose output, printing all possible configuration parameters and their values, you can use this command:.
I won't print a sample output because it's too long, but somewhere near the bottom you should see a line like this:.
While we've got all this information, It's worth checking to make sure you are actually using SSL to connect to your dynamic DNS provider. Look for lines like this:. Since we don't just want the IP address to update once, we still need to set up ddclient to run as a daemon so it can check for a change of IP address periodically and notify the dynamic DNS provider if necessary.
Since some ISPs seem to only allocate new IP addresses when the modem is power cycled, and some dynamic DNS providers will time out if you don't update the record in a while, there is one thing left to do - we need to add a cron job to force an update weekly, just in case. Choose whether you want to force an update daily or weekly, and then create a file called ddclient in the relevant directory, e.
Let me begin with my compliments for your tutorials. I see that you are trying to explain things instead of just writing a cookbook with all the right commands. I have a question about the last paragraph of your tutorial on ddclient. I think you refer here to the habit of free DNS suppliers like no-ip in my case to remove your hosts if there has been no update on that host for over a month for example. After the "ddclient -force" my DNS supplier comes back with this message:.
Obviously my domain name points to the wrong IP afterwards but that is solved within 5 minutes. This solution is ofcourse also an unnecessary attempt to change the current address. Good question. I guess they just don't want you spamming them with unneccessary requests if everyone forced an update every hour that would add up to a lot of traffic pretty quickly , but I doubt you'll get in trouble for doing it once a week or month.
If you think about it, when you reboot your server ddclient's IP address cache is probably cleared, so it must send a probably unneccessary request then. They're not going to ban people for rebooting their servers every week, so running a weekly job is probably fine.
Your call, though! This is explained in the WAN IP address discovery section - the default use is if which doesn't work behind a router. Thank you, sorry noob moment. Got everything running smoothly now except SSL. I've went through all the steps to install my. I don't suppose I can hit you up for one more noob support help?
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