How do you handle ipv4/ipv6? Seems this is listing my ipv4 address, but not ipv6...
Show HN: A simple-to-update dynamic DNS service
21–28 of 28 posts
Re: Show HN: A simple-to-update dynamic DNS service
#22Earlier quoted context omitted.
I've been involved with a number of DNS related companies and projects. Your biggest cost sink will be abuse. Some peddler of illicit images or terror group will set up camp, Amazon will take down all of your records. You'll realize you need to run your own infrastructure. You setup a few boxes. Someone starts selling fake rolexes and your boxes get taken offline. You move them to a friendlier host. A HYIP gets setup…
You paint a scary picture. I did evaluate a couple of potentially negative outcomes, but they largely boiled down to Amazon dropping the domain, or having a sudden influx of faked traffic resulting in large bills. I will keep a more cautious eye out ..
I can't emphasis enough for you to pay attention to what the folks above have said.
I also have some experience with a large DNS service and you just wouldn't believe the amount of time and resources that get allocated to dealing with abuse.
Re: Show HN: A simple-to-update dynamic DNS service
#23How do you handle ipv4/ipv6? Seems this is listing my ipv4 address, but not ipv6...
It's in the FAQ, you use the -4 or -6 parameters to curl to force it to connect one way or the other, and that controls which address gets updated.
(Of course your IPv6 connectivity to dhcp.io has to work properly, but it certainly works both ways for me).
Re: Show HN: A simple-to-update dynamic DNS service
#24CloudFlare has a (free) DNS api too. Pretty easy to script something with their system. https://www.cloudflare.com/docs/client-api.html
Re: Show HN: A simple-to-update dynamic DNS service
#25Why didn't anyone build this before?
Serious question? People build them all the time. They don't tend to stay simple or they eventually start demanding payment. It seems like this is a low cost thing to run, but if it takes off it gets very expensive.
Yes, it was a serious question. Because I was suspecting there was some problem behind this (I just didn't know it was serious as you and the other people explained).
Re: Show HN: A simple-to-update dynamic DNS service
#26Very cool. If anybody needs a Python implementation: https://gist.github.com/anonymous/02257ea2ccf776c1a32e
Re: Show HN: A simple-to-update dynamic DNS service
#27Nice! Setting up my server to update every hour was as simple as: crontab -e and adding the line: 31 * * * * curl http://dhcp.io/set/99351a76-f6... (the above job will run on the 31st minute of every hour)
Do you really want to have to wait up to an hour if your IP address changes and you're away from home?
Last time I did this on Linux, it was in an if.up script, so when the PPP interface comes up it updates the DNS.
Re: Show HN: A simple-to-update dynamic DNS service
#28Can you open source this? Would be great for other people wanting to run similar services.
As per the other reply, this is open.
Can I ask why you want it to be open though? Do you not trust the site/me to exist in the future? Or do you not want to rely on something external?