How i created my own custom ddns script
My ISP (Internet Service Provider) gives me /64 ipv6 address on which i configured a postfix mailserver on port 25 which can directly mail to my laptop.
But the problem was that the ipv6 address changed every time i connected to my hotspot. So i created a program to handle it.
- I want to get the ipv6 address which i can get with
curl ip.se
2. I want to update the ip address on cloudflare as i got connected to my wifi network with specific ssid so i used cloudflare api here
More info
Cloudflare API | DNS › Records › Create DNS Record
Mainly in my case i want to get mail at nnt@jol.fustin.top which is pointed to mx1.fustin.top in my case.
So finally i have to update the AAAA record of mx1 using cloudflare api i have done it
you can get the api key from cloudflare here
https://dash.cloudflare.com/profile/api-tokens
Create API token · Cloudflare Fundamentals docs
So now i have to automate it every time i connect to my wifi network
So in mac we have shortcuts which can automate the tasks
So everything is set now i have the binary file in updateipv6addr directory
set -a = used to automatically export the variables to the system
source .env = to set the .env file
set +a = to reset the above thing
So i got the automated ipv6 update
The repo for this project:
https://github.com/lsnnt/ipv6updater
Thank you,
At last i want to say you that the mail server is receive only because outbound connection to port 25 is blocked by my isp
You can mail me at nnt@jol.fustin.top
