DDNS service

You can confirm your global IP address and reverse record via above link
The output is json format. You can access it not only with web browser but also any command line tools.

example1

$ curl -s https://ddns.techjunk.net/getaddress

The result will be like below

{ 
  "sourceip": "xxx.xxx.xxx.xxx",
  "domainname": "xxxx.xxxx.xxxx.or.jp"
}

example2

$ python3
import requests
url = 'https://ddns.techjunk.net/getaddress'
try: 
    response = requests.get(url)
    sourceip = response.json().get("sourceip")
except Exception as e:
    print(e)

print(sourceip)

Operation

Web Form

description

command

First of all, select operation which you want to execute from below (required)

create new account

If the fqdn is available, then we will send password to mailaddress via email. (If not, we won't send email.)
Our email address has techjunk.net domain. Please configure your email settings to accept our email before you submit.
At this time, we only keep the fqdn. To create A record with your global IP address, you have to do register ip address,

register ip address

Create or update A record with the global IP address which you use and record the timestamp which you access last time.

delete account

Delete your account and fqdn.

fqdn

fqdn which you want to use.
Input subdomain in text box and select domain from pull down menu.
For subdomain, you can use lowercase letters and numeric. min 5 / max 10 characters. (required)

mailaddress

mailaddress which you can recieve our email.(required)

mailaddress (confirmation)

Input the same mailaddress as above (required when create new account)

password

password which we sent to you when you created new account (required when register ip address or delete account)

After you've created new account, fqdn, mailaddress and password are used to authentication. If you lost them, we can not tell them to you.

When your web request succeeded, the browser shows below message:

{"message":"succeeded"}

curl command

We won't help you but you can use any tools like curl if you want.
You can request with http POST method like below.

curl 
-X POST 
-H "Content-Type: application/json"
-d '{......POST data......}'
https://ddns.techjunk.net/request 

example of POST data

create new account

{
  "command":"new",
  "fqdn":"example.techjunk.net",
  "mailaddress":"youremail@example.com"
}

register ip address

{
  "command":"update",
  "fqdn":"example.techjunk.net",
  "mailaddress":"youremail@example.com",
  "password":"passwordstring12345678"
}

delete account

{
  "command":"delete",
  "fqdn":"example.techjunk.net",
  "mailaddress":"youremail@example.com",
  "password":"passwordstring12345678"
}